CA2246716A1 - An insulating element for clamping installation between roof rafters or beams of other wooden constructions - Google Patents
An insulating element for clamping installation between roof rafters or beams of other wooden constructions Download PDFInfo
- Publication number
- CA2246716A1 CA2246716A1 CA002246716A CA2246716A CA2246716A1 CA 2246716 A1 CA2246716 A1 CA 2246716A1 CA 002246716 A CA002246716 A CA 002246716A CA 2246716 A CA2246716 A CA 2246716A CA 2246716 A1 CA2246716 A1 CA 2246716A1
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- Canada
- Prior art keywords
- clamping
- sheet
- insulating
- layer
- panel
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Abandoned
Links
- 238000009434 installation Methods 0.000 title claims abstract description 23
- 238000010276 construction Methods 0.000 title claims abstract description 20
- 239000011490 mineral wool Substances 0.000 claims abstract description 12
- 238000005520 cutting process Methods 0.000 claims abstract description 3
- 239000000835 fiber Substances 0.000 claims description 8
- 239000011230 binding agent Substances 0.000 claims description 4
- 238000005728 strengthening Methods 0.000 claims description 2
- 230000006978 adaptation Effects 0.000 claims 1
- 239000000463 material Substances 0.000 description 18
- 238000009413 insulation Methods 0.000 description 6
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 5
- 230000000694 effects Effects 0.000 description 5
- 238000003892 spreading Methods 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 3
- 108010052322 limitin Proteins 0.000 description 2
- 238000003860 storage Methods 0.000 description 2
- 101100128280 Sphingobium japonicum (strain DSM 16413 / CCM 7287 / MTCC 6362 / UT26 / NBRC 101211 / UT26S) linF gene Proteins 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 229910052729 chemical element Inorganic materials 0.000 description 1
- 230000003138 coordinated effect Effects 0.000 description 1
- 230000000875 corresponding effect Effects 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 239000011888 foil Substances 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 230000001939 inductive effect Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 230000002045 lasting effect Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000002441 reversible effect Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
Classifications
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/62—Insulation or other protection; Elements or use of specified material therefor
- E04B1/74—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls
- E04B1/76—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls specifically with respect to heat only
- E04B1/7654—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls specifically with respect to heat only comprising an insulating layer, disposed between two longitudinal supporting elements, e.g. to insulate ceilings
- E04B1/7658—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls specifically with respect to heat only comprising an insulating layer, disposed between two longitudinal supporting elements, e.g. to insulate ceilings comprising fiber insulation, e.g. as panels or loose filled fibres
- E04B1/7662—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls specifically with respect to heat only comprising an insulating layer, disposed between two longitudinal supporting elements, e.g. to insulate ceilings comprising fiber insulation, e.g. as panels or loose filled fibres comprising fiber blankets or batts
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/62—Insulation or other protection; Elements or use of specified material therefor
- E04B1/74—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls
- E04B1/76—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls specifically with respect to heat only
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04D—ROOF COVERINGS; SKY-LIGHTS; GUTTERS; ROOF-WORKING TOOLS
- E04D13/00—Special arrangements or devices in connection with roof coverings; Protection against birds; Roof drainage ; Sky-lights
- E04D13/16—Insulating devices or arrangements in so far as the roof covering is concerned, e.g. characterised by the material or composition of the roof insulating material or its integration in the roof structure
- E04D13/1606—Insulation of the roof covering characterised by its integration in the roof structure
- E04D13/1612—Insulation of the roof covering characterised by its integration in the roof structure the roof structure comprising a supporting framework of roof purlins or rafters
- E04D13/1625—Insulation of the roof covering characterised by its integration in the roof structure the roof structure comprising a supporting framework of roof purlins or rafters with means for supporting the insulating material between the purlins or rafters
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/62—Insulation or other protection; Elements or use of specified material therefor
- E04B1/74—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls
- E04B2001/741—Insulation elements with markings, e.g. identification or cutting template
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Physics & Mathematics (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Acoustics & Sound (AREA)
- Electromagnetism (AREA)
- Building Environments (AREA)
- Rod-Shaped Construction Members (AREA)
- Working Measures On Existing Buildindgs (AREA)
- Roof Covering Using Slabs Or Stiff Sheets (AREA)
Abstract
The invention relates to an insulating element (1) for clamping installation between limiting surfaces, in particular between rafters (4) of roofs such as steep roofs, or between beams or the like, in particular of wooden frame constructions for outside or inside walls of buildings or wooden beam ceilings and the like, in particular made of mineral wool in the form of an insulating panel or insulating sheet wrappable into a roll or insulating panels obtained by cutting the insulating sheet, the panel/sheet having a plurality of insulating layers (2, 3) extending perpendicular to the thickness of the insulating element, at least one of which is designed as a clamping-type holding element (3) over the remaining insulating layers for clamping installation of the panel/sheet such that said holding element (3) exerts a greater pressure on the limiting surfaces in the installed state than the remaining insulating layers due to its higher elastic force, transmitted to said surfaces through its side surfaces.
Description
W O98/28501 PCT~EP97/0723 - An ins~ n~ element for clamping ~nstallation between roof rafters or beams of other~wooden constructions This invention relates to an ins~ ting element accor(ling to the pre~mble of claim 1.
Such ins~ tinF elements (or instll~ting material el~m~nts) are known and used in particular for r-l~mpinF installation of sheets, or singled inslll~ting panels cut off the sheet, between roof rafters, balcony or other limiting surfaces. This is a market with production figures that have been rising for decades, the insulat-ing sheet being installed on the spot by experts from the building trade, but also very often by untrained personnel, i.e. do-it-yourselfers. In particular since it has become common on the market to insulate steep roofs vrith mineral wool, such inslll~ting sheets, also referred to as ~l~mpinF felts, have been able to increase their market share constantly.
In the production and stock keeping of an insulating element the manufac-turer must take into account quite generally that the clear widths between the rafters of roofs or beams of other wooden constructions and the heights thereof,i.e. latticework depths, can differ to a considerable degree. For these reasons e.g.
so-called shoulder mats for adapting to different widths between the rafters or be~ are produced and kept in stock in fmely graded widths, for ex~mple in width gradations of 100 mm. Further, cl~mpin~ felt thicknesses of about 80 mm to 220 mm and more are offered today. This of course involves enormous stock keeping in production, sale and distribution, but also on the buil~ing site.
Another special problem with such products is the necP.¢.~ry e~pe~diture of mz~t~ri~l, which should always be reduced for reasons of cost, but which is es-pecially importaDt because large surfaces must be covered with ins~ tin~ mate-rial L~ the preferred cases of appl;c~ti~n such as steep roof insulation. Further, the considerable m~tf~ri~l costs are not least due to the fact that mineral wool is increiq¢in~ly produced ~om biodegradable compositions or must be produced ac-cording to spec~c national regulations, which can lead to much higher prices.
W O98/~8501 , PCT~EP97/07234 The problem of the invention is to provide an ins~ ting sheet or insulat-ing panel for clamping installation between roof rafters, be~ms or other limit,ing surEaces which permits the expenditure of material to be reduced with no loss ofnecessary ins~ qting properties, i.e. an optimi7:~tion of the product to the use of material nec~.s~ry for fillfilling the te-hnic~l service value, in particular the thermal inslll~ting ability.
Accol~li..g to a further aspect, ins7ll~tinF element~ ~or cl~mping installa-tion between roof rafters or be~ms of wooden frame constructions are to be pro-vided not only with a saving of material over conventional inslll~tinF elements and nevertheless an optimal ~l~mping effect, but also storage, transport and p~rk~ginF advantages through a reduction of the package volume in view of the fact that such ins~ ting elements are marketed within a foil p~rk~ge.
A further aspect of the invention is to provide an inslll~tinE sheet or insu-lating panels in a thickness range which ensures full insulation as an ins~ tingelement with a certain thickness at different and varying beam thicknesses (latticework depths~ and in particular permits continuous compensation of differ-ent thicknesses. The inslll~ting sheet should nevertheless be easy to produce, and the installation of the inslll~ing sheet or of insulating panels by mere clamping in no way impaired.
This problem is solved according to the invention by the features con-tained in the characterizing part of claim 1, whereby expedient, in particular ad-vantageous embodiments are characterized by the features contained in the sub-cl~im~.
The invention is characterized mainly in that the inslll~tin~ sheet or panelhas a special rl~mr;n~-type holding element, also refelTed to in the following as a ~ l~mrin~ layer. This allows a very con~ rable reduction of material in the total inslll~ting layer since only the rl~mrin~-type portion of the panel or sheet neces-sary for rl~mping installation need be designed in view of its rl~mring functionproperty in order to ensure a perfect and lasting hold OI the material. The rest or the rem~inin~ layers of the panel or sheet can be adjusted suitably with no refer-ence to the rl~mring and holdi3lg function, for ex~mple with lower elastic forcethan the rl~mrin~ layer, in particular with lower bulk density, and need be de-WO 98/28501 , rCT/E:P97/07234 signed solely for the re~luil e~ent of thermal insulation. By e.g. gra~ing the bulk density within the panel or sheet one obtains an accordingly great saving of ma-terial in particular with consideration of the fact that considerable surfaces must be insulated in the intended cases of appIication of steep roof insulation. In the present case the properties of the clamping layer are obtained by a higher bulk density over the remAinin~ layer. EIigher buLk density is used here to attain the ~l~mpin~ function of the ~lArnring-type holding element. The bulk density in therPmAining area of the insl~lAtinF sheet or panel can be selected according to the particular re~ ent profile, in particular with respect to thermal conductivity.
The clamping layer of course also fulfills the re~ e.llent for thermal insulation.
In a particularly preferred embodiment the panel or sheet is divided into two layers, one of which forms the rlAmpin~ layer and has a higher elastic force, in particular due to a higher bulk density, than the remAinin~ layer which per-forms only the filling function or inslllAting function. The properties, such aselastic force of the cl~mpin~-type holding element, can be achieved not only by increased bulk density but also by suitable adjustment of binder content and!or fiber quality and/or fiber orientation.
T~e mulLi~-LiLion, in particular bipartition, of the ins~ tin~ element into at least two portions with different natures achieves a reduction of material ac-cording to the invention while ret~ining or optim;7:ing the clamping effect overconventional mineral wool inslllAtinF materials, whereby at least one portion acts in cl~mring fashion. In this connection a certain sag occurs in the installed state e.g. between roof rafters by reason of the dead weight of the insulAting ~lement, so that the ~lAmrin~ layer preferably located above in this case exerts a cl~mping-inducing effect on the rPn~AininF ins~llAtin~ layer below. Since the bulk density of the remAining inslll~*n~ layer serving as a ~11ing layer can be minimi~ed accord-ing to the invention, one obtains not only a saving of material but also consider-able pAr~kA~ing advantages, since the product can then be compressed better.
~ This is of special advantage for inslllAfinF elements supplied in roll form since it permits the package volume to be considerably reduced, resulting in reduced transport and storage volumes.
W O98/28501 PCT~EP97/07234 Alongside the particularly preferred double-layer embo-liment of the insu-lating sheet or ins~ tin~ panel it is also possible to provide two filling layers or two clamping layers in the case of only one filling layer, etc. The number and ar-rangement of filling layers and ~ l~mpin~ layers can be selected accu. .lh gly by the expert.
As mentioned above, the property of the ~ rn~ing layer can also be ad-justed, rather than via bulk density, through fiber geometry, fiber position, fiber forming, fiber orientation, binder content or other additives strengthening the clamping layer. It is essential that the cl~mrin~ layer has a sufficient spreading or elastic force to ensure the nec~ ry frictional forces between clamping layer and limitin~ ~urfaces. It generally holds that the ~l~mping layer is stiff enough so that the insulating element can be clamped between the rafters with sufficient pressure and has a press fit there, whereas the filling layer can be soft and com-pressible enough to permit a thickness compensation function at different lat-ticework depths. When elastic force is adjusted via bulk density, it is expedient for the ratio of cl~mping layer bulk density to filling layer bulk density to be > 1, preferably > 1.5.
In the following, preferred embodiments of the invention will be described with reference to the sc.h~m~tic ~aw...g, in which:
Figure 1 shows a perspect*e partial view of an inventive insnl~ting ele-ment, Figure 2 shows a sectional view illustrating the inst~ t.i- n conditions of an insnl~tin~ sheet or ins~ t3n~ panel within a square of a steep roof, Figure 3 shows a sectional view through an inslll~ting sheet or inslli~ting panel in the state at the b~Finnin~ of installation between be~m.~ or posts of avertical wooden frame construction for a blliklin~ wall or the like, if the thickness of the ins~ qt;n~ ment is to be adJusted to a lattic~wuLk depth ~n~ r than the thickness of the inslll~ting element, Figure 4 shows a view like Figure 3 but in the installed position of the in-slll~ting sheet or inslll~tin~ panel, Figure 5 shows an insulating sheet wrapped into a roll, partly in a stretched state to show the ~ingl;ng of ins~ tin~ panels from this insulating sheet for rl~m~ing installation between rafters, Figure 6 shows a diagram to illustrate the saving potential when using the inventive inslll~ting element.
The inslll~ting element in the form of insnl~fing sheet or insllkqtin~ panel 1 shown in a perspective partial view in Figure 1 is constructed from two layers, narnely filling layer 2 d~ n~ted FS and clarnping layer 3 d~ n~ted KS. The two layers have different natures and thus also different properties. In a pre-ferred case of application, n~mely for rl~m~ing installation of inslll~ting sheet or insl~l~ting panel 1 between rafters of a roof construction or between posts of awooden frame construction, the layers produced from mineral wool with suitable binders are designed with different bulk densities. C]~mping layer 3 is designedin its density with a view to clarnping installation of the sheet or panel and has in particular a greater bulk density than filling layer 2. The latter can be designed independently of cl~mping function and therefore have reduced bulk density, its density being selected solely with a view to the desired inslll~tinE properties.Figure 2 shows inslll~ting sheet 1 cut off a sheet rolled into the inslll~ting material roll accoL~lhlg to Figure 5 in the installed position between two adjacent rafters 4 of a steep roof construction, reference sign 5 d.o~i~n~ting waterproofsheeting customarily used in roof works and disposed on the upper side of rafters 4. In the shown embodiment of Figure 2, clamping layer 3 is disposed above, i.e.on the roof side, ~d thus adjacent waterproof sheeting 5, whereas filling layer 2 is disposed toward the room, i.e. below. Inslll~qt;ng sheet 1 shown in Figure 2 is adjusted in terms of thickness to thickness d3 of the rafters, but this is not neces-sarily the case. The layer thicknesses of rl~mring layer 3 and filling layer 2 are ~, stated as dl and d2. For installation, insul~ting sheet 1 is cut off a roll according to Figure 5 with an overmeasure over clear width D between ~ cPnt rafters 4, the overmeasure being such that ins~ n~ sheet 1 is inserted in ~ nrin~ fash-ion between q~j~cent rafters and then held by the rl~rnrin~ effect. A useful overmeasure for conventional s~uares i8 about 1 cIn.
Both layers 2 and 3 are formed from mineral wool, as stated above, but they differ with respect to their mechanical properties. These different properties are achieved in the embodiment of Figure 2 by different bulk densities of layers 2 and 3. Fi11ing layer 2 has a bulk density lower than the bulk density of ~ m~in~layer 3. Clamping layer 3 with its greater bulk density has a higher elastic force between the limitin~ surfaces than filling layer 2, the elastic force being such that the ins2l1~tin~ panel can be disposed ~irmly with a press fit when incorporated between adjacent rafters so that no special fastening means are necPR.~ry. Suit-a~le bulk densities for the clamping layer are 2 10 kg/m3, a preferred range of application for clamping installation between rafters or posts of a wooden frameconstruction being a density value in the range of 10 kg/m3 to 30 kg/m3. An espe-cially preferred range for bulk density is from 15 kg/m3 to 25 kg/m3 and especially preferred bulk densities for the ~lArnpin~ layer are for instance in the range of 17 to 19 kgJm3.
It is essential for the bulk density adjustment of rl~mrin~ layer 3 in the case of application for roof insulation, in particular for ins~ ting horizontal wooden latticework constructions, such as so-called frames between opposing rafters and squares at a roof slope of ~ 60~, that clAmpin~ layer 3 is suf~lciently strong and stiff but nevertheless flexible without buckling under the dead weight of ins~ t;nF element 1 consisting of layers 2 and 3. In the installed position of Figure 2 the inslll~ting sheet can sag slightly under its dead weight, this weight-induced slight sag or downward bulge resulting in a spread of the inslll~ting sheet clamped between rafters 4 especially in the lower area of filling layer 2,thereby bl~ linF up spreading forces. The rl~mr;nF f~ation of the inslll~tin~
sheet between rafters 4 is effected mainly by the restoring and frictional forces built up because of rl~rnring layer 3, which are additionally supported by the spreading forces within filling layer 2 induced by fl~mrin~ layer 3, whereby thefrictional forces of filling layer 2 over rafters 4 of course also contribute to the r.l~mring effect. ClAmring is therefore effected in the embodiment of Figure 2 both by actual ~l~mpinF layer 3, whose strength is designed for the purpose of the clamping function, and by filling layer 2 via the spreading forces induced therebecause of sag by reason of the dead weight of the ins~ t;nF sheet.
W O98/28SOl PCT~EP97/07234 A reverse arrangement of ins~ ;ng sheet 1 between the limiting surfaces of roof rafters or beams of vertical wooden fr~me constructions is of course also possible, whereby filling layer 2 is located ~ c~nt waterproof sheeting 5 in theroof area and the clamping layer facing the room. However, with vertical wooden frame constructions, filling layer 2, with the outside surface of rl~mring layer 3 flush with the outside surface of bearns 4, fills the rem~ining space up to wallpanel 5, e.g. derived timber panel, and can thereby act as a compensation layer.That is, because of the good compressibility of filling layer 2 designed with low bulk density, different be~m thicknesses d3 can be bridged with one and the same inslll~tinF element. For ex~mple it is conceivable to bridge different thick-nesses in the range of 140 mm to 220 mm continuously with insulating panel 1 with a thickness of 220 mm by filling layer 2 being compressed to a greater or lesser degree and thus performing a compensation function when the inslll~tin~
panel is incorporated. The aforementioned value of 220 mm for total thickness dland d2 of inslll~tinF sheet 1 is of course an exemplary value, because the thick-ness of the product can also be adjusted to other latticework depths. It is further possible to use two products of different thicknesses with uniform gradation or else three products of different thicknesses with uniform gradation, if required.
This is ultim~t.oly dependent on market behavior, in particular on the egpected differences of rafter or beam thicknesses as are used in the individual construc-tions. This can vary from country to country, possibly v~ith corresponding con-sideration of building regulations.
Figures 3 and 4 show ins~ fion conditions for an inslll~tinF panel or in-slll~ting sheet between a vertical wooden frame construction with posts or be~ms4, as are used for example for building walls, in particular industrially prefabri-cated room cell modules. Merely by way of ~nnple the outer side is illustrated here by the wall panel of derived timber product or paneled wall 5'. Figure 3 shows the beginninF of the installation process, the filling layer formed as com-- pensation layer 2' being located in the space between the two beams 4'. Clamping layer 3 is then pressed between be~ms 4' with application of force P so that theoutside surface of l l~rnring layer 3 extends flush with the outside surface or out-side edge of beams 4', as Figure 4 shows. VVhen ~lzimp;ng layer 3 is pressed in, W 098/28501 ~CTJEP97/07234 compensation layer 2' is accordingly compressed and thus also performs a com-pensation function along with the ins~ tinE function, since different beam thicknesses can be bridged with one and the sarne product, i.e. with an ins~-lAting element of equal thickness. In this case of application clarnping layer 3 is again designed with higher strength over compensation layer 2', in particular with higher bulk density, the aforementioned ranges being applicable here too. The bulk density in both cases of application for the filling layer is < 30 kg/m3, in par-ticular s 15 kg/m3 and preferably s 10 kglm3, the two bulk densities being coordi-nated with each other such that the ratio of clamping layer bulk density to filling layer bulk density is > 1.
Particular thickness dl of clarnping layer 3 is minimi~ed in all cases of application to the technically nec~s~ry thickness required for f~xing the insulat-ing layer between the colle~;~onding limiting surfaces of roof rafters or beams of wooden latticework constructions. The particular values for the thicknesses alsodepend on the design of the wooden frame construction and in particular on the width to be bridged between ~ c~nt rafters or beams. With respect to filling layer 2 it is quite generally advantageous for it to more compressible than clamping layer 2, which permits the a~ove-described compensation function, on the one hand, but in particular also provides advantages in p~-k~gin~, on the other hand. One can thus achieve an ins~ finE roll with reduced diameter but equal length of the ins~ ting sheet, which reduces the package volume and thus provides considerable transport and ~qtorage advantages. The ins~ tin~ sheet in the form of a roll is c~ es~;ible to ranges of 1: 2.5 to 1: 4.5. With such an insu-lati~g sheet or ins~ t;ng panel cut thereoff one can also obtain a ( l~ifi~tiQn in thermal conductivity group 040 accor~ing to DIN 1816~, t_e filling layer fallingwit.hin thermal conductivity group 045 by reason of its bulk density and the cl~mping layer within thermal conductivity group 035 by reason of its bulk den-sity, while in the middle the inslll~finE p~nel or insl~l~tinE sheet fu~llls the cri-teria of thermal conductivity group 040 accor~ling to DIN 18165. By suitably se-lectiIlg the bulk rl~n~iti~ (RD), it being well known that (l~mbda) ~ = f (RD), one can a~so obt~in a total thermal conductivity group of 035.
W O 98/28501 , PCTJEP97/07234 Figure 5 shows an especially preferred embodiment, namely an inslllAting sheet wrapped into a roll for clamping installation between the limiting surfaces of rafters or beams, in particular rafters of a steep roof. InslllAtin~ sheet 6 is shown partly in the stretched state. Number 2 again dP~i~nAt-os the filling layer with a compensation function and number 3 the damping layer, which is dis-posed here on the outside in the rolled position of the inslllAtinF roll. The ~l~mping layer can also be disposed on the inside in the rolled position, which depends on the case of application in accordance with the st~t~m.snts accor-ling to Figure 2, i.e. the actual installation conditions. On surface 7 of the layer located on the inside in the rolled position, that is the filling layer in the described em-bo-liment here, there are marking lines 8 extending perpendicular to lateral edges 9 of inslll~tin~ sheet 6. In the example, marking lines 8 are applied at equal distances, distance d between two adjacent marking lines preferably being 100 mm. As Figure 5 illustrates, marking lines 8 need not be executed as continuous lines but can also be broken lines. Marking lines 8 are expediently not formed by cuts or the like but are merely optically effective without influencing the han-dling and effectiveness of the material of mineral wool sheet 6. To fill a squ~ewith a given width of for P~Arnple 700 rnm, one measures longitudinal portion L
with a length of 710 rnrn starting out from leading edge 10 of ins~ sting sheet 6 along marking lines 8 with consideration of the overmeasure of for ex~mple 1 cm necessary for press fit and cuts it off at 11. For this purpose one sets knife 12 at the measured cutting line in the way indicated in Figure 5 and draws it through the material in the direction of arrow 13 parallel to adjacent marking line 8.
Ins~llAtinF panel 14 thereby singled is rotated for installation so that pre-viously lateral edges 9 of inslll~tin~ sheet 6 come to be above and below and lon-gitl~in~l portion L thus det~rmines the width of mineral wool panel 14. In this position mineral wool panel 14 is inserted into the square between two ad~acent rafters 4. Overmeasure U of longitll-lin~l portion L over width D of the square at ~ the place of installation of 10 mm or a little more in the example results in the desired press fit of mineral wool panel 14. After insertion between l~L~i; 4 min-eral wool panel 14 th~l~roLe has a press fit between the rafters through the mping effect. Thus formed ins~ tinF sheet 6 can be used with uniform width for laying in squares with different width D between adjacent rafters if panel 14 is cut off the inslllat;ng sheet in accordance with width D between the rafters.Because of the simultaneous possibility of compensation one can therefore use the ins~ ting sheet shown in Fig. 5 with a uniform width ~imRn~ion of the insu-lating sheet and uniform thickness of the inslllating sheet for squares or bays with differing width D and differing rafter and beam thicknesses d3. This results in a considerable saving of assortment, because inslllating sheet 6 need no longer be kept in flnely graded thicknesses but one inslll~ting sheet of uniform width and thickness can cover a variety of roof and wooden frame constructions with different width between the ldLL~l~ or be~rns and with different latticework depths.
Fig. 6 shows the saving potential for inslll~ting material in percentages over conventional inslllAting sheets available on the market. One thus obtains considerable savings in the range of 10 to 23% over the thicknesses of ins7ll~tinF
sheets or panels customariIy used in particular for ins~ t~ng roofs, which leadsto a considerable saving of material in view of the quantities of insl]lz~ting sheet used per year for these purposes.
Table 1 shows by way of exarnple variants of layer combinations with dif-ferent thicknesses, bulk densities and weights per unit area of the individual partial layers.
This table in-lic~to!~ that all variants according to the invention have lower weights per unit area than the standard version and thus lead to a noticeable saving of m~qt~ri~l One can further see that layer thickness, bulk density and weights per unit area of the partial layers can thereby be varied.
If e.g. the filling layer is adJusted so that its thickness can be compressed during inst~ t~ n depending on the rafter height or wooden latticework depth, one can not only save m~tPrial, albeit to a smaUer extent, but also optimize theassortment. One thus sees in Table 1 that if e.g. a sheet/panel of variant 3 with a ~hickness of 220 mm and with a weight per unit area o~ 2.82 kg/m2 is compressed to a beam thickness of 180 mm, one can even obtain a saving of material of 0.06 kg/m2 over a sheet/panel of the standard version with a thickness of 180 mm and a weight per unit area of 2.88 kg/m2. The advantage in this example lies mainly W O 98128SO1 . PCTrEP97/07234 in the optimized assortment. A clearer saving of material is given e.g. with beam thicknes~ d3 of 200 mm, however, si~ce here the weight per unit area of the standard version of 3.00 kg/m2 is considerahly higher compared to variant 3 again with 220 mm thickness and a weight per unit area of 2.82 kg/m2. The sav-ing of material is therefore 0.18 kg/m3 in this example.
Table 1 Comparison of weighl;s per UIlit area in k~/m2 of insulating sheets/panels in variou~ combin~h~n.q of layer~ different bulk den~itie~
Height of Weight per unit limiting area in kg/m2 Weight per unit area in kg/m2 with inhomogeneou~ layer ~ lur~
surface inq~ t.ing sheet/
(BH) mm panel homogeneous layer structure (standard) Variant 1 Vari~nt 2 Variant 3 KS FS KS FS KS FS O
d~9=50 mm dEs=BH-d~s dKS=30 mm dps=BH-dKS d~ 0 mm dps=BH-dKS
RD=23 k~m3 RD-11 k~m3 RD=17 kg/m3 RD=11 kg/m3 RD=19 kg/m9 RD=11 k~m3 220 3,30 3,02 2,60 2,82 200 3,00 2,80 2,38 2,00 180 2,88 2,58 2,16 2,38 160 2,56 2,36 1,94 2,16 140 2,38 2,14 1,72 1,94 120 2,04 1,92 1,50 1,72 BH = Height of limiting surface or wooden l~Llic~ ~. J~k depth (mm) d - Thickness KS = l'l~mping layer (3) d~; = Thickness of ~ mrin~ layer ES = Filling layer (2) dP8 = Thickness of filling layer RD = Bulk density (kg/m3)
Such ins~ tinF elements (or instll~ting material el~m~nts) are known and used in particular for r-l~mpinF installation of sheets, or singled inslll~ting panels cut off the sheet, between roof rafters, balcony or other limiting surfaces. This is a market with production figures that have been rising for decades, the insulat-ing sheet being installed on the spot by experts from the building trade, but also very often by untrained personnel, i.e. do-it-yourselfers. In particular since it has become common on the market to insulate steep roofs vrith mineral wool, such inslll~ting sheets, also referred to as ~l~mpinF felts, have been able to increase their market share constantly.
In the production and stock keeping of an insulating element the manufac-turer must take into account quite generally that the clear widths between the rafters of roofs or beams of other wooden constructions and the heights thereof,i.e. latticework depths, can differ to a considerable degree. For these reasons e.g.
so-called shoulder mats for adapting to different widths between the rafters or be~ are produced and kept in stock in fmely graded widths, for ex~mple in width gradations of 100 mm. Further, cl~mpin~ felt thicknesses of about 80 mm to 220 mm and more are offered today. This of course involves enormous stock keeping in production, sale and distribution, but also on the buil~ing site.
Another special problem with such products is the necP.¢.~ry e~pe~diture of mz~t~ri~l, which should always be reduced for reasons of cost, but which is es-pecially importaDt because large surfaces must be covered with ins~ tin~ mate-rial L~ the preferred cases of appl;c~ti~n such as steep roof insulation. Further, the considerable m~tf~ri~l costs are not least due to the fact that mineral wool is increiq¢in~ly produced ~om biodegradable compositions or must be produced ac-cording to spec~c national regulations, which can lead to much higher prices.
W O98/~8501 , PCT~EP97/07234 The problem of the invention is to provide an ins~ ting sheet or insulat-ing panel for clamping installation between roof rafters, be~ms or other limit,ing surEaces which permits the expenditure of material to be reduced with no loss ofnecessary ins~ qting properties, i.e. an optimi7:~tion of the product to the use of material nec~.s~ry for fillfilling the te-hnic~l service value, in particular the thermal inslll~ting ability.
Accol~li..g to a further aspect, ins7ll~tinF element~ ~or cl~mping installa-tion between roof rafters or be~ms of wooden frame constructions are to be pro-vided not only with a saving of material over conventional inslll~tinF elements and nevertheless an optimal ~l~mping effect, but also storage, transport and p~rk~ginF advantages through a reduction of the package volume in view of the fact that such ins~ ting elements are marketed within a foil p~rk~ge.
A further aspect of the invention is to provide an inslll~tinE sheet or insu-lating panels in a thickness range which ensures full insulation as an ins~ tingelement with a certain thickness at different and varying beam thicknesses (latticework depths~ and in particular permits continuous compensation of differ-ent thicknesses. The inslll~ting sheet should nevertheless be easy to produce, and the installation of the inslll~ing sheet or of insulating panels by mere clamping in no way impaired.
This problem is solved according to the invention by the features con-tained in the characterizing part of claim 1, whereby expedient, in particular ad-vantageous embodiments are characterized by the features contained in the sub-cl~im~.
The invention is characterized mainly in that the inslll~tin~ sheet or panelhas a special rl~mr;n~-type holding element, also refelTed to in the following as a ~ l~mrin~ layer. This allows a very con~ rable reduction of material in the total inslll~ting layer since only the rl~mrin~-type portion of the panel or sheet neces-sary for rl~mping installation need be designed in view of its rl~mring functionproperty in order to ensure a perfect and lasting hold OI the material. The rest or the rem~inin~ layers of the panel or sheet can be adjusted suitably with no refer-ence to the rl~mring and holdi3lg function, for ex~mple with lower elastic forcethan the rl~mrin~ layer, in particular with lower bulk density, and need be de-WO 98/28501 , rCT/E:P97/07234 signed solely for the re~luil e~ent of thermal insulation. By e.g. gra~ing the bulk density within the panel or sheet one obtains an accordingly great saving of ma-terial in particular with consideration of the fact that considerable surfaces must be insulated in the intended cases of appIication of steep roof insulation. In the present case the properties of the clamping layer are obtained by a higher bulk density over the remAinin~ layer. EIigher buLk density is used here to attain the ~l~mpin~ function of the ~lArnring-type holding element. The bulk density in therPmAining area of the insl~lAtinF sheet or panel can be selected according to the particular re~ ent profile, in particular with respect to thermal conductivity.
The clamping layer of course also fulfills the re~ e.llent for thermal insulation.
In a particularly preferred embodiment the panel or sheet is divided into two layers, one of which forms the rlAmpin~ layer and has a higher elastic force, in particular due to a higher bulk density, than the remAinin~ layer which per-forms only the filling function or inslllAting function. The properties, such aselastic force of the cl~mpin~-type holding element, can be achieved not only by increased bulk density but also by suitable adjustment of binder content and!or fiber quality and/or fiber orientation.
T~e mulLi~-LiLion, in particular bipartition, of the ins~ tin~ element into at least two portions with different natures achieves a reduction of material ac-cording to the invention while ret~ining or optim;7:ing the clamping effect overconventional mineral wool inslllAtinF materials, whereby at least one portion acts in cl~mring fashion. In this connection a certain sag occurs in the installed state e.g. between roof rafters by reason of the dead weight of the insulAting ~lement, so that the ~lAmrin~ layer preferably located above in this case exerts a cl~mping-inducing effect on the rPn~AininF ins~llAtin~ layer below. Since the bulk density of the remAining inslll~*n~ layer serving as a ~11ing layer can be minimi~ed accord-ing to the invention, one obtains not only a saving of material but also consider-able pAr~kA~ing advantages, since the product can then be compressed better.
~ This is of special advantage for inslllAfinF elements supplied in roll form since it permits the package volume to be considerably reduced, resulting in reduced transport and storage volumes.
W O98/28501 PCT~EP97/07234 Alongside the particularly preferred double-layer embo-liment of the insu-lating sheet or ins~ tin~ panel it is also possible to provide two filling layers or two clamping layers in the case of only one filling layer, etc. The number and ar-rangement of filling layers and ~ l~mpin~ layers can be selected accu. .lh gly by the expert.
As mentioned above, the property of the ~ rn~ing layer can also be ad-justed, rather than via bulk density, through fiber geometry, fiber position, fiber forming, fiber orientation, binder content or other additives strengthening the clamping layer. It is essential that the cl~mrin~ layer has a sufficient spreading or elastic force to ensure the nec~ ry frictional forces between clamping layer and limitin~ ~urfaces. It generally holds that the ~l~mping layer is stiff enough so that the insulating element can be clamped between the rafters with sufficient pressure and has a press fit there, whereas the filling layer can be soft and com-pressible enough to permit a thickness compensation function at different lat-ticework depths. When elastic force is adjusted via bulk density, it is expedient for the ratio of cl~mping layer bulk density to filling layer bulk density to be > 1, preferably > 1.5.
In the following, preferred embodiments of the invention will be described with reference to the sc.h~m~tic ~aw...g, in which:
Figure 1 shows a perspect*e partial view of an inventive insnl~ting ele-ment, Figure 2 shows a sectional view illustrating the inst~ t.i- n conditions of an insnl~tin~ sheet or ins~ t3n~ panel within a square of a steep roof, Figure 3 shows a sectional view through an inslll~ting sheet or inslli~ting panel in the state at the b~Finnin~ of installation between be~m.~ or posts of avertical wooden frame construction for a blliklin~ wall or the like, if the thickness of the ins~ qt;n~ ment is to be adJusted to a lattic~wuLk depth ~n~ r than the thickness of the inslll~ting element, Figure 4 shows a view like Figure 3 but in the installed position of the in-slll~ting sheet or inslll~tin~ panel, Figure 5 shows an insulating sheet wrapped into a roll, partly in a stretched state to show the ~ingl;ng of ins~ tin~ panels from this insulating sheet for rl~m~ing installation between rafters, Figure 6 shows a diagram to illustrate the saving potential when using the inventive inslll~ting element.
The inslll~ting element in the form of insnl~fing sheet or insllkqtin~ panel 1 shown in a perspective partial view in Figure 1 is constructed from two layers, narnely filling layer 2 d~ n~ted FS and clarnping layer 3 d~ n~ted KS. The two layers have different natures and thus also different properties. In a pre-ferred case of application, n~mely for rl~m~ing installation of inslll~ting sheet or insl~l~ting panel 1 between rafters of a roof construction or between posts of awooden frame construction, the layers produced from mineral wool with suitable binders are designed with different bulk densities. C]~mping layer 3 is designedin its density with a view to clarnping installation of the sheet or panel and has in particular a greater bulk density than filling layer 2. The latter can be designed independently of cl~mping function and therefore have reduced bulk density, its density being selected solely with a view to the desired inslll~tinE properties.Figure 2 shows inslll~ting sheet 1 cut off a sheet rolled into the inslll~ting material roll accoL~lhlg to Figure 5 in the installed position between two adjacent rafters 4 of a steep roof construction, reference sign 5 d.o~i~n~ting waterproofsheeting customarily used in roof works and disposed on the upper side of rafters 4. In the shown embodiment of Figure 2, clamping layer 3 is disposed above, i.e.on the roof side, ~d thus adjacent waterproof sheeting 5, whereas filling layer 2 is disposed toward the room, i.e. below. Inslll~qt;ng sheet 1 shown in Figure 2 is adjusted in terms of thickness to thickness d3 of the rafters, but this is not neces-sarily the case. The layer thicknesses of rl~mring layer 3 and filling layer 2 are ~, stated as dl and d2. For installation, insul~ting sheet 1 is cut off a roll according to Figure 5 with an overmeasure over clear width D between ~ cPnt rafters 4, the overmeasure being such that ins~ n~ sheet 1 is inserted in ~ nrin~ fash-ion between q~j~cent rafters and then held by the rl~rnrin~ effect. A useful overmeasure for conventional s~uares i8 about 1 cIn.
Both layers 2 and 3 are formed from mineral wool, as stated above, but they differ with respect to their mechanical properties. These different properties are achieved in the embodiment of Figure 2 by different bulk densities of layers 2 and 3. Fi11ing layer 2 has a bulk density lower than the bulk density of ~ m~in~layer 3. Clamping layer 3 with its greater bulk density has a higher elastic force between the limitin~ surfaces than filling layer 2, the elastic force being such that the ins2l1~tin~ panel can be disposed ~irmly with a press fit when incorporated between adjacent rafters so that no special fastening means are necPR.~ry. Suit-a~le bulk densities for the clamping layer are 2 10 kg/m3, a preferred range of application for clamping installation between rafters or posts of a wooden frameconstruction being a density value in the range of 10 kg/m3 to 30 kg/m3. An espe-cially preferred range for bulk density is from 15 kg/m3 to 25 kg/m3 and especially preferred bulk densities for the ~lArnpin~ layer are for instance in the range of 17 to 19 kgJm3.
It is essential for the bulk density adjustment of rl~mrin~ layer 3 in the case of application for roof insulation, in particular for ins~ ting horizontal wooden latticework constructions, such as so-called frames between opposing rafters and squares at a roof slope of ~ 60~, that clAmpin~ layer 3 is suf~lciently strong and stiff but nevertheless flexible without buckling under the dead weight of ins~ t;nF element 1 consisting of layers 2 and 3. In the installed position of Figure 2 the inslll~ting sheet can sag slightly under its dead weight, this weight-induced slight sag or downward bulge resulting in a spread of the inslll~ting sheet clamped between rafters 4 especially in the lower area of filling layer 2,thereby bl~ linF up spreading forces. The rl~mr;nF f~ation of the inslll~tin~
sheet between rafters 4 is effected mainly by the restoring and frictional forces built up because of rl~rnring layer 3, which are additionally supported by the spreading forces within filling layer 2 induced by fl~mrin~ layer 3, whereby thefrictional forces of filling layer 2 over rafters 4 of course also contribute to the r.l~mring effect. ClAmring is therefore effected in the embodiment of Figure 2 both by actual ~l~mpinF layer 3, whose strength is designed for the purpose of the clamping function, and by filling layer 2 via the spreading forces induced therebecause of sag by reason of the dead weight of the ins~ t;nF sheet.
W O98/28SOl PCT~EP97/07234 A reverse arrangement of ins~ ;ng sheet 1 between the limiting surfaces of roof rafters or beams of vertical wooden fr~me constructions is of course also possible, whereby filling layer 2 is located ~ c~nt waterproof sheeting 5 in theroof area and the clamping layer facing the room. However, with vertical wooden frame constructions, filling layer 2, with the outside surface of rl~mring layer 3 flush with the outside surface of bearns 4, fills the rem~ining space up to wallpanel 5, e.g. derived timber panel, and can thereby act as a compensation layer.That is, because of the good compressibility of filling layer 2 designed with low bulk density, different be~m thicknesses d3 can be bridged with one and the same inslll~tinF element. For ex~mple it is conceivable to bridge different thick-nesses in the range of 140 mm to 220 mm continuously with insulating panel 1 with a thickness of 220 mm by filling layer 2 being compressed to a greater or lesser degree and thus performing a compensation function when the inslll~tin~
panel is incorporated. The aforementioned value of 220 mm for total thickness dland d2 of inslll~tinF sheet 1 is of course an exemplary value, because the thick-ness of the product can also be adjusted to other latticework depths. It is further possible to use two products of different thicknesses with uniform gradation or else three products of different thicknesses with uniform gradation, if required.
This is ultim~t.oly dependent on market behavior, in particular on the egpected differences of rafter or beam thicknesses as are used in the individual construc-tions. This can vary from country to country, possibly v~ith corresponding con-sideration of building regulations.
Figures 3 and 4 show ins~ fion conditions for an inslll~tinF panel or in-slll~ting sheet between a vertical wooden frame construction with posts or be~ms4, as are used for example for building walls, in particular industrially prefabri-cated room cell modules. Merely by way of ~nnple the outer side is illustrated here by the wall panel of derived timber product or paneled wall 5'. Figure 3 shows the beginninF of the installation process, the filling layer formed as com-- pensation layer 2' being located in the space between the two beams 4'. Clamping layer 3 is then pressed between be~ms 4' with application of force P so that theoutside surface of l l~rnring layer 3 extends flush with the outside surface or out-side edge of beams 4', as Figure 4 shows. VVhen ~lzimp;ng layer 3 is pressed in, W 098/28501 ~CTJEP97/07234 compensation layer 2' is accordingly compressed and thus also performs a com-pensation function along with the ins~ tinE function, since different beam thicknesses can be bridged with one and the sarne product, i.e. with an ins~-lAting element of equal thickness. In this case of application clarnping layer 3 is again designed with higher strength over compensation layer 2', in particular with higher bulk density, the aforementioned ranges being applicable here too. The bulk density in both cases of application for the filling layer is < 30 kg/m3, in par-ticular s 15 kg/m3 and preferably s 10 kglm3, the two bulk densities being coordi-nated with each other such that the ratio of clamping layer bulk density to filling layer bulk density is > 1.
Particular thickness dl of clarnping layer 3 is minimi~ed in all cases of application to the technically nec~s~ry thickness required for f~xing the insulat-ing layer between the colle~;~onding limiting surfaces of roof rafters or beams of wooden latticework constructions. The particular values for the thicknesses alsodepend on the design of the wooden frame construction and in particular on the width to be bridged between ~ c~nt rafters or beams. With respect to filling layer 2 it is quite generally advantageous for it to more compressible than clamping layer 2, which permits the a~ove-described compensation function, on the one hand, but in particular also provides advantages in p~-k~gin~, on the other hand. One can thus achieve an ins~ finE roll with reduced diameter but equal length of the ins~ ting sheet, which reduces the package volume and thus provides considerable transport and ~qtorage advantages. The ins~ tin~ sheet in the form of a roll is c~ es~;ible to ranges of 1: 2.5 to 1: 4.5. With such an insu-lati~g sheet or ins~ t;ng panel cut thereoff one can also obtain a ( l~ifi~tiQn in thermal conductivity group 040 accor~ing to DIN 1816~, t_e filling layer fallingwit.hin thermal conductivity group 045 by reason of its bulk density and the cl~mping layer within thermal conductivity group 035 by reason of its bulk den-sity, while in the middle the inslll~finE p~nel or insl~l~tinE sheet fu~llls the cri-teria of thermal conductivity group 040 accor~ling to DIN 18165. By suitably se-lectiIlg the bulk rl~n~iti~ (RD), it being well known that (l~mbda) ~ = f (RD), one can a~so obt~in a total thermal conductivity group of 035.
W O 98/28501 , PCTJEP97/07234 Figure 5 shows an especially preferred embodiment, namely an inslllAting sheet wrapped into a roll for clamping installation between the limiting surfaces of rafters or beams, in particular rafters of a steep roof. InslllAtin~ sheet 6 is shown partly in the stretched state. Number 2 again dP~i~nAt-os the filling layer with a compensation function and number 3 the damping layer, which is dis-posed here on the outside in the rolled position of the inslllAtinF roll. The ~l~mping layer can also be disposed on the inside in the rolled position, which depends on the case of application in accordance with the st~t~m.snts accor-ling to Figure 2, i.e. the actual installation conditions. On surface 7 of the layer located on the inside in the rolled position, that is the filling layer in the described em-bo-liment here, there are marking lines 8 extending perpendicular to lateral edges 9 of inslll~tin~ sheet 6. In the example, marking lines 8 are applied at equal distances, distance d between two adjacent marking lines preferably being 100 mm. As Figure 5 illustrates, marking lines 8 need not be executed as continuous lines but can also be broken lines. Marking lines 8 are expediently not formed by cuts or the like but are merely optically effective without influencing the han-dling and effectiveness of the material of mineral wool sheet 6. To fill a squ~ewith a given width of for P~Arnple 700 rnm, one measures longitudinal portion L
with a length of 710 rnrn starting out from leading edge 10 of ins~ sting sheet 6 along marking lines 8 with consideration of the overmeasure of for ex~mple 1 cm necessary for press fit and cuts it off at 11. For this purpose one sets knife 12 at the measured cutting line in the way indicated in Figure 5 and draws it through the material in the direction of arrow 13 parallel to adjacent marking line 8.
Ins~llAtinF panel 14 thereby singled is rotated for installation so that pre-viously lateral edges 9 of inslll~tin~ sheet 6 come to be above and below and lon-gitl~in~l portion L thus det~rmines the width of mineral wool panel 14. In this position mineral wool panel 14 is inserted into the square between two ad~acent rafters 4. Overmeasure U of longitll-lin~l portion L over width D of the square at ~ the place of installation of 10 mm or a little more in the example results in the desired press fit of mineral wool panel 14. After insertion between l~L~i; 4 min-eral wool panel 14 th~l~roLe has a press fit between the rafters through the mping effect. Thus formed ins~ tinF sheet 6 can be used with uniform width for laying in squares with different width D between adjacent rafters if panel 14 is cut off the inslllat;ng sheet in accordance with width D between the rafters.Because of the simultaneous possibility of compensation one can therefore use the ins~ ting sheet shown in Fig. 5 with a uniform width ~imRn~ion of the insu-lating sheet and uniform thickness of the inslllating sheet for squares or bays with differing width D and differing rafter and beam thicknesses d3. This results in a considerable saving of assortment, because inslllating sheet 6 need no longer be kept in flnely graded thicknesses but one inslll~ting sheet of uniform width and thickness can cover a variety of roof and wooden frame constructions with different width between the ldLL~l~ or be~rns and with different latticework depths.
Fig. 6 shows the saving potential for inslll~ting material in percentages over conventional inslllAting sheets available on the market. One thus obtains considerable savings in the range of 10 to 23% over the thicknesses of ins7ll~tinF
sheets or panels customariIy used in particular for ins~ t~ng roofs, which leadsto a considerable saving of material in view of the quantities of insl]lz~ting sheet used per year for these purposes.
Table 1 shows by way of exarnple variants of layer combinations with dif-ferent thicknesses, bulk densities and weights per unit area of the individual partial layers.
This table in-lic~to!~ that all variants according to the invention have lower weights per unit area than the standard version and thus lead to a noticeable saving of m~qt~ri~l One can further see that layer thickness, bulk density and weights per unit area of the partial layers can thereby be varied.
If e.g. the filling layer is adJusted so that its thickness can be compressed during inst~ t~ n depending on the rafter height or wooden latticework depth, one can not only save m~tPrial, albeit to a smaUer extent, but also optimize theassortment. One thus sees in Table 1 that if e.g. a sheet/panel of variant 3 with a ~hickness of 220 mm and with a weight per unit area o~ 2.82 kg/m2 is compressed to a beam thickness of 180 mm, one can even obtain a saving of material of 0.06 kg/m2 over a sheet/panel of the standard version with a thickness of 180 mm and a weight per unit area of 2.88 kg/m2. The advantage in this example lies mainly W O 98128SO1 . PCTrEP97/07234 in the optimized assortment. A clearer saving of material is given e.g. with beam thicknes~ d3 of 200 mm, however, si~ce here the weight per unit area of the standard version of 3.00 kg/m2 is considerahly higher compared to variant 3 again with 220 mm thickness and a weight per unit area of 2.82 kg/m2. The sav-ing of material is therefore 0.18 kg/m3 in this example.
Table 1 Comparison of weighl;s per UIlit area in k~/m2 of insulating sheets/panels in variou~ combin~h~n.q of layer~ different bulk den~itie~
Height of Weight per unit limiting area in kg/m2 Weight per unit area in kg/m2 with inhomogeneou~ layer ~ lur~
surface inq~ t.ing sheet/
(BH) mm panel homogeneous layer structure (standard) Variant 1 Vari~nt 2 Variant 3 KS FS KS FS KS FS O
d~9=50 mm dEs=BH-d~s dKS=30 mm dps=BH-dKS d~ 0 mm dps=BH-dKS
RD=23 k~m3 RD-11 k~m3 RD=17 kg/m3 RD=11 kg/m3 RD=19 kg/m9 RD=11 k~m3 220 3,30 3,02 2,60 2,82 200 3,00 2,80 2,38 2,00 180 2,88 2,58 2,16 2,38 160 2,56 2,36 1,94 2,16 140 2,38 2,14 1,72 1,94 120 2,04 1,92 1,50 1,72 BH = Height of limiting surface or wooden l~Llic~ ~. J~k depth (mm) d - Thickness KS = l'l~mping layer (3) d~; = Thickness of ~ mrin~ layer ES = Filling layer (2) dP8 = Thickness of filling layer RD = Bulk density (kg/m3)
Claims (11)
1. An insulating element for clamping installation between limiting surfaces, in particular between rafters (4) of roofs such as steep roofs, or between beams (4') or the like, in particular of wooden frame constructions for outside or inside walls of buildings or wooden beam ceilings and the like, in particular made of mineral wool in the form of an insulating panel or insulating sheet (6) wrappable into a roll or insulating panels (1) obtained by cutting the insulating sheet, characterized in that the panel/sheet (1, 6) has a plurality of insulating layers extending perpendicular to the thickness of the insulating element, at least oneof which is designed as a clamping-type holding element over the remaining insulating layers for clamping installation of the panel/sheet such that said holding element exerts a greater pressure on the limiting surfaces in the installed state than the remaining insulating layers due to its higher elastic force, transmitted to said surfaces through its side surfaces.
2. The insulating element of claim 1, characterized in that the elastic force of the clamping-type holding element formed as a clamping layer (3) is obtained by suitably fixing the bulk density and/or binder content and/or fiber quality and/or fiber orientation and/or other suitable strengthening means.
3. The insulating element of claim 1 or 2, characterized in that the clamping-type holding element limits an outside surface of the panel/sheet (1, 6) or is disposed within the panel/sheet.
4. The insulating element of any of the above claims, characterized in that the clamping layer (3) is aligned in its thickness substantially with the clamping function technically necessary for fixation between the limiting surfaces.
5. The insulating element of any of the above claims, characterized in that the panel/sheet (1, 6) is formed in at least two layers from the clamping layer (3) and a remaining insulating layer as a filling layer (2).
6. The insulating element of any of the above claims, characterized in that the thickness of the clamping layer (3) is ~ 50% of the total thickness of the panel/sheet (1, 6) comprising the clamping and filling layers (2, 3) before installation, being preferably in the range of 20 to 50%, in particular 20 to 40% and particularly preferably 30 to 40%.
7. The insulating element for clamping installation between nonvertical limiting surfaces, in particular between rafters (4) of steep roofs or between beams of other wooden constructions, such as wooden beam ceilings and the like, in particular according to at least one of claims 1 to 6, characterized in that the clamping-type holding element (clamping layer (3)) is disposed facing away from the room in the installed position of the panel/sheet (1, 6) e.g. between roof rafters (4).
8. The insulating element for clamping installation between vertical limiting surfaces, in particular between beams (4') of wooden frame constructions for outside or inside walls of buildings and the like, according to claims 5 and 6, characterized in that the filling layer is formed as a compensation layer (2') for adaptation to different beam heights (latticework depths).
9. The insulating element of claim 8, characterized in that the compensation layer (2') is formed as a flexible compressing zone.
10. The insulating element of any of the above claims, characterized in that the clamping layer (3) has a bulk density ~ 10 kg/m3, being preferably in the range of 10 to 30 kg/m3, in particular in the range of 15 to 25 kg/m3.
11. The insulating element of any of the above claims, characterized in that the filling or compensation layer (2; 2') has a bulk density of < 30 kg/m3, in particular preferably ~ 15 kg/m3.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19654259 | 1996-12-23 | ||
| DE19654259.6 | 1996-12-23 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA2246716A1 true CA2246716A1 (en) | 1998-07-02 |
Family
ID=7816154
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002246716A Abandoned CA2246716A1 (en) | 1996-12-23 | 1997-12-22 | An insulating element for clamping installation between roof rafters or beams of other wooden constructions |
Country Status (16)
| Country | Link |
|---|---|
| EP (1) | EP0886704B2 (en) |
| JP (1) | JP3819039B2 (en) |
| KR (1) | KR100442955B1 (en) |
| AT (1) | ATE215158T1 (en) |
| AU (1) | AU734846B2 (en) |
| CA (1) | CA2246716A1 (en) |
| CZ (1) | CZ295020B6 (en) |
| DE (1) | DE69711365T3 (en) |
| DK (1) | DK0886704T4 (en) |
| ES (1) | ES2172037T3 (en) |
| HU (1) | HU224187B1 (en) |
| NO (1) | NO319754B1 (en) |
| PL (1) | PL208971B1 (en) |
| SI (1) | SI0886704T1 (en) |
| TR (1) | TR199801257T1 (en) |
| WO (1) | WO1998028501A1 (en) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19844425A1 (en) * | 1998-09-28 | 2000-03-30 | Gruenzweig & Hartmann | Mineral wool insulation board for insulation between rafters and wooden frame constructions as well as processes for the production of such an insulation board |
| DE10041481B4 (en) † | 2000-08-24 | 2006-01-19 | Deutsche Rockwool Mineralwoll Gmbh & Co. Ohg | Insulating element and method and apparatus for producing an insulating element, in particular a rolling and / or windable insulation web of mineral fibers |
| FR2829162B1 (en) * | 2001-07-27 | 2012-02-10 | Saint Gobain Isover | ISOLATION MATERIAL BASED ON MINERAL WOOL, INSULATION SYSTEM, INSULATION METHOD |
| DE10221692B4 (en) * | 2001-08-23 | 2006-02-16 | Deutsche Rockwool Mineralwoll Gmbh + Co Ohg | Thermal insulation composite system and usable in the system insulation board |
| KR20040020446A (en) * | 2002-08-30 | 2004-03-09 | 주식회사 포스코 | Fire Resistant Ceiling System |
| WO2004035955A1 (en) * | 2002-10-17 | 2004-04-29 | Deutsche Rockwool Mineralwoll Gmbh & Co. Ohg | Insulation element |
| DE102005018577A1 (en) * | 2005-04-21 | 2006-10-26 | Saint-Gobain Isover G+H Ag | Mineral wool insulation sheet with an insulation layer for the clamping installation between boundary surfaces |
| US10669714B2 (en) | 2016-03-23 | 2020-06-02 | Rockwool International A/S | Prefabricated module for a pitched roof element and pitched roof element for a building roof |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3141206A (en) * | 1957-10-02 | 1964-07-21 | Gustin Bacon Mfg Co | Edge sealing insulation panels |
| DE8311026U1 (en) * | 1983-04-14 | 1983-07-21 | Rheinhold & Mahla Gmbh, 6800 Mannheim | SELF-SUPPORTING INSULATION PLATE |
| GB2177048B (en) † | 1985-06-01 | 1990-01-24 | Saint Gobain Isover | Mineral fibre product for use as an insulating panel or insulating strip |
| FR2597531B1 (en) † | 1986-04-16 | 1990-09-21 | Saint Gobain Isover | METHOD FOR MOUNTING BETWEEN PURLINS, SUCH AS ROOF RAFTERS, OF A MINERAL FIBER MATERIAL IN THE FORM OF ROLLERS, MINERAL FIBER MAT FOR THE IMPLEMENTATION OF IT AND METHOD FOR OBTAINING IT |
| DK155163B (en) † | 1986-06-30 | 1989-02-20 | Rockwool Int | PROCEDURE FOR CONTINUOUS PRODUCTION OF MINERAL WOOLS |
| DE3928741A1 (en) † | 1989-08-30 | 1991-03-07 | Gruenzweig & Hartmann | SLOPED ROOF, ESPECIALLY OF OLD BUILDINGS, AND INSULATION SHEET FOR ITS INSULATION AND PROCESS FOR ITS PRODUCTION |
| IE77649B1 (en) * | 1991-05-09 | 1997-12-31 | Leanort Ltd | Improvements in and relating to insulation boards for use between rafters |
| DE4341433A1 (en) * | 1993-12-04 | 1995-06-08 | Joma Daemmstoffwerk Josef Mang | Building insulation board |
| US5508079A (en) * | 1994-08-15 | 1996-04-16 | Owens-Corning Fiberglas Technology, Inc. | Conformable insulation assembly |
| DE4437457A1 (en) * | 1994-10-19 | 1996-04-25 | Zerzog Gmbh & Co Kg | Self clamping insulation element for roof rafters and mfg. process |
-
1997
- 1997-12-22 SI SI9730351T patent/SI0886704T1/en unknown
- 1997-12-22 JP JP52839998A patent/JP3819039B2/en not_active Expired - Fee Related
- 1997-12-22 AT AT97953904T patent/ATE215158T1/en active
- 1997-12-22 EP EP97953904A patent/EP0886704B2/en not_active Expired - Lifetime
- 1997-12-22 ES ES97953904T patent/ES2172037T3/en not_active Expired - Lifetime
- 1997-12-22 PL PL328825A patent/PL208971B1/en unknown
- 1997-12-22 CZ CZ19983004A patent/CZ295020B6/en not_active IP Right Cessation
- 1997-12-22 AU AU57629/98A patent/AU734846B2/en not_active Ceased
- 1997-12-22 TR TR1998/01257T patent/TR199801257T1/en unknown
- 1997-12-22 DK DK97953904T patent/DK0886704T4/en active
- 1997-12-22 WO PCT/EP1997/007234 patent/WO1998028501A1/en active IP Right Grant
- 1997-12-22 DE DE69711365T patent/DE69711365T3/en not_active Expired - Lifetime
- 1997-12-22 CA CA002246716A patent/CA2246716A1/en not_active Abandoned
- 1997-12-22 HU HU0001642A patent/HU224187B1/en not_active IP Right Cessation
- 1997-12-22 KR KR10-1998-0706571A patent/KR100442955B1/en not_active IP Right Cessation
-
1998
- 1998-08-21 NO NO19983870A patent/NO319754B1/en not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| KR19990087176A (en) | 1999-12-15 |
| JP2000505851A (en) | 2000-05-16 |
| AU734846B2 (en) | 2001-06-21 |
| ATE215158T1 (en) | 2002-04-15 |
| ES2172037T3 (en) | 2002-09-16 |
| HUP0001642A2 (en) | 2000-09-28 |
| HUP0001642A3 (en) | 2000-10-30 |
| DE69711365D1 (en) | 2002-05-02 |
| HU224187B1 (en) | 2005-06-28 |
| DE69711365T3 (en) | 2010-05-20 |
| AU5762998A (en) | 1998-07-17 |
| DE69711365T2 (en) | 2002-11-07 |
| SI0886704T1 (en) | 2002-10-31 |
| NO983870D0 (en) | 1998-08-21 |
| NO319754B1 (en) | 2005-09-12 |
| PL328825A1 (en) | 1999-02-15 |
| CZ295020B6 (en) | 2005-05-18 |
| EP0886704A1 (en) | 1998-12-30 |
| TR199801257T1 (en) | 1999-03-22 |
| CZ300498A3 (en) | 1999-04-14 |
| DK0886704T4 (en) | 2009-11-23 |
| EP0886704B2 (en) | 2009-08-05 |
| JP3819039B2 (en) | 2006-09-06 |
| WO1998028501A1 (en) | 1998-07-02 |
| PL208971B1 (en) | 2011-07-29 |
| KR100442955B1 (en) | 2004-10-20 |
| DK0886704T3 (en) | 2002-07-22 |
| EP0886704B1 (en) | 2002-03-27 |
| NO983870L (en) | 1998-08-21 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FZDE | Discontinued |