CN109779162B - Passive building flat roof heat-insulating waterproof system and partition type dry operation construction method - Google Patents
Passive building flat roof heat-insulating waterproof system and partition type dry operation construction method Download PDFInfo
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- CN109779162B CN109779162B CN201910075445.9A CN201910075445A CN109779162B CN 109779162 B CN109779162 B CN 109779162B CN 201910075445 A CN201910075445 A CN 201910075445A CN 109779162 B CN109779162 B CN 109779162B
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Abstract
The invention discloses a passive building flat roof heat-insulating waterproof system, which consists of a steam-insulating layer, a heat-insulating layer, a self-adhesive waterproof layer and a hot-melt waterproof layer, wherein the steam-insulating layer, the heat-insulating layer, the self-adhesive waterproof layer and the hot-melt waterproof layer are arranged on a concrete base layer; the construction method comprises the steps of construction preparation, interface agent coating, water falling port lower part accessory installation, steam barrier layer construction, plane heat preservation layer paving, plane self-adhesive coiled material construction, vertical surface heat preservation layer construction, water falling port upper part accessory installation, vertical surface self-adhesive coiled material paving and hot melt coiled material construction, the waterproof performance of the roof is improved, the drying of the heat preservation layer can be effectively guaranteed, the quality is not influenced by overcast and rainy weather, the construction is simple, nodes are easy to process, the construction speed is high, the construction period is saved by 15 days compared with the traditional roof construction by taking a 1000 square-meter roof as an example, the construction cost of a passive building flat roof heat preservation waterproof system is lower than that of a common roof by 30 percent, (SD value) is more than or equal to 1500m, and the heat conductivity coefficient is less than or equal.
Description
Technical Field
The invention relates to a construction method, in particular to a passive building flat roof heat-preservation waterproof system and a partition type dry operation construction method, and belongs to the technical field of buildings.
Background
With the development of economy and the progress of society, the quality requirement of people on the living environment is higher and higher, and meanwhile, the passive ultra-low energy consumption building is rapidly developed under the background of the strong national advocation of low-carbon economy.
At present, the building roof is mostly an inverted roof, and the inverted roof is widely applied to civil buildings due to the characteristics of simple structure, convenient and quick construction, convenient maintenance and the like. However, the inverted roof insulation layer is easy to enter water and loses insulation performance, the waterproof material is soaked in water for a long time to cause erosion and separation of overlapping edges, and the like, and the roof form cannot meet the requirements of passive buildings on the performances of the roof position, such as air tightness, water tightness, insulation performance, heat insulation broken bridges and the like.
Disclosure of Invention
The invention aims to solve the defects, and provides a passive building flat roof heat-insulation waterproof system and a partition type dry operation construction method.
In order to solve the technical problems, the technical scheme of the invention is as follows: the utility model provides a flat roofing heat preservation waterproof system of passive form building which characterized in that: the self-adhesive waterproof layer is composed of a steam-isolating layer, a heat-insulating layer, a self-adhesive waterproof layer and a hot-melt waterproof layer which are arranged on a concrete base layer;
the steam-isolating layer is a system bottom layer, the heat-insulating layer is positioned at the upper part of the steam-isolating layer, the self-adhesive waterproof layer and the heat-insulating layer are constructed in a partition mode, the self-adhesive waterproof coiled material is directly adhered to the heat-insulating plate, and the hot-melt waterproof layer is a system surface layer;
the steam barrier layer adopts a 1.2mm thick SKD alkali-resistant special aluminum foil surface layer glass fiber tire self-adhesive SBS modified asphalt steam barrier coiled material;
the heat-insulating layer is an XPS heat-insulating plate;
the self-adhesive waterproof layer is made of a 3mm thick TSU glass fiber tire fire-proof SBS modified asphalt self-adhesive waterproof coiled material containing reinforcing ribs;
the hot-melt waterproof layer is a polyester tire SBS modified asphalt waterproof coiled material with a thickness of 4mm and containing reinforcing ribs on the SPT slate surface.
The construction method of the passive building flat roof heat-insulating waterproof system comprises the following steps:
construction preparation: carrying out roof waterproof partition according to the size of the roof, wherein the partition interval is not more than 12m, and the partition positions are divided
The positions of roof pipelines, parapet walls and the like, floor drains and the like are avoided, and a shovel, a broom and the like are used for cleaning dust, impurities and problems possibly endangering quality after the construction of the structure slope finding layer is completed;
coating an interface agent: the concrete base layer is treated by using water-based cold primer oil, and the brushing sequence is from far to near and from high to low; the roller brush is uniformly coated on a concrete base layer, and the base layer treating agent cannot be exposed after roller coating.
Further, the method also comprises the following steps:
installing a lower part accessory of the drain: and (3) installing a side drainage outlet, wherein a side drainage rainwater outlet adopts a PVC (polyvinyl chloride) component, a drainage component is plugged into the opening, and gaps among the pipe fitting, the insulation board and the side wall are filled with PU (polyurethane) glue foam.
Further, the method also comprises the following steps:
and (3) constructing a steam barrier:
(1) plane vapour barrier layer paving plaster
Determining the laying sequence and direction of the coiled materials, snapping lines on a concrete base layer, then laying and attaching the steam-insulating coiled materials of the side wall at the position of the water falling port according to a reference line, turning up the coiled materials at the joint position of the steam-insulating coiled materials and the side wall, laying and attaching the coiled materials along the horizontal direction of the side wall, and then laying large-area self-adhesive steam-insulating coiled materials from the low position of the roof to the high position;
when in construction, the isolating film is firstly removed, the sticky surface is paved along a datum line, the surface of the coiled material is rolled immediately after the isolating film is removed, and air is extruded out, so as to ensure the initial bonding strength;
longitudinal lap seams of the steam-insulating coiled materials are straightened, the width of the lap seams is 80mm, and the longitudinal lap seams are compacted forcefully by a roller; when the temperature is lower than 5 ℃, the steam barrier layer needs to be heated by a spray gun to activate the viscosity of the steam barrier layer, when the self-adhesive waterproof coiled material is paved, a person holds a gasoline blast lamp (spray gun) and just faces the coil to perform reciprocating movement to bake the included angle between the two layers of coiled materials, the distance between the blast lamp and the junction is about 300mm, and the coiled material is pushed and rolled by the foot to be paved when the glue layer on the bottom surface of the coiled material is black and glossy and is mixed with micro bubbles (a large amount of large bubbles cannot be generated);
(2) additional layer paving paste
Paving and pasting an additional layer of the external and internal corners of the vertical surface after the construction of the planar coiled material is finished;
(3) vertical face vapour barrier layer paving plaster
The position of the water falling port is firstly pasted, the height of the coiled material is not less than 600mm, and the lap joint with the plane coiled material is not less than 250 mm. Tearing the coiled material isolation paper by 300mm, pressing the upper part of the coiled material on the side wall, continuously tearing the isolation paper downwards, forcibly compacting by using a roller to ensure that the steam-proof coiled materials are firmly bonded, ensuring the rest positions to be the same as the positions of the water falling openings, and ensuring that the construction sequence is opposite to the gradient direction.
Further, the method also comprises the following steps:
paving of plane heat-insulating layer
The heat-insulating layer is constructed in subareas at positions with higher gradients, and each subarea is constructed from low to high; the heat-insulating layer is pasted by using the post-foaming PU glue;
firstly, PU glue is sprayed on the steam-isolating coiled material according to the S shape by a glue gun. And (3) tightly extruding the heat insulation plates, when the gaps between the plates are larger than 2mm, fully filling the gaps by using heat insulation strips, and polishing the positions with the height difference between the plates larger than 1.5mm to be smooth. When the laminated plates are laid, the seams of the upper and lower plates are staggered, and the thicknesses of two adjacent plate edges on the surface are consistent.
Further, the method also comprises the following steps:
construction of plane self-adhesive coiled material
Directly bonding a TSU glass fiber tire fire insulation type SBS modified asphalt self-adhesive waterproof coiled material with the thickness of 3mm on the heat insulation layer, and paving from low to high;
if the temperature is lower than 5 ℃, the paste is spread by auxiliary heating. The paving adopts a rolling paving method. Only need to peel off the barrier paper and roll the roll and go on simultaneously, specifically do: a steel pipe with the diameter of 30mm and the diameter of 1500mm penetrates through a paper core cylinder at the center of the whole coiled material, one end of each steel pipe is held by two persons, the whole coiled material is lifted to the starting end of a place to be paved, and the steel pipe is aligned to the elastic powder line on the base layer; lapping the self-adhesive waterproof coiled material and the coiled material of the side wall steam barrier layer by more than or equal to 250mm, rolling and spreading the coiled material by 500mm along the spreading and pasting advancing direction, lifting the spread 50cm coiled material, peeling the isolation paper, folding the isolation paper into strips, pulling the strips out from the lower part of the whole coiled material to roll the strips on a used paper core barrel, and simultaneously aligning to the chalk line to glue and spread the 50cm coiled material at the starting end firmly; then 1 person stands in front of the coiled material and lifts and peels the isolation paper against the coiled material, and rolls up the paper core cylinder while lifting and peeling; two persons respectively stand at two sides of the coiled material, and hand the steel pipes penetrating through the tubular cores of the coiled material to align with the elastic powder lines and roll and spread the coiled material forwards; 1, exhausting, compacting and firmly attaching the rolled and paved coiled material behind the coiled material; when the self-adhesive waterproof construction is carried out, the lap joint width of the long side and the short side of the SBS coiled material is 100 mm;
when the construction is carried out to the joint position of the waterproof subareas, the self-adhesive waterproof coiled material at the position of the waterproof subareas which is constructed firstly is downwards turned and is lapped with the steam barrier, the lapping width is 100mm, and the lapping length of the waterproof coiled material at the next subarea and the coiled material at the upper part of the last subarea is 100 mm.
Further, the method also comprises the following steps:
construction of vertical surface heat-insulating layer
Adopting a double-layer 110 mm-thick graphite polyphenyl plate for heat preservation of the vertical side wall, using a post-foaming PU adhesive to print on the heat preservation plate, and pressing the heat preservation plate on the side wall for pasting; the double-layer graphite polystyrene board is adhered in a staggered joint way, and the staggered joint width is not less than 300 mm; after the insulation board is pasted, drilling an expansion anchor bolt hole by using a percussion drill; knocking in collision broken bridge anchor bolts for fixing, wherein 6 anchor bolts are arranged per square, and each insulation board is not less than 2; cutting an isosceles right triangle strip with the length of the right-angle side being 100mm, making a vertical-face waterproof chamfer angle, and adhering the strip between the vertical-face heat preservation coil and the plane waterproof coil by using PU glue.
Further, the method also comprises the following steps:
fitting for installing upper part of drain
And (3) perforating the heat-insulating plate at the position of the water falling port, wherein the diameter of the heat-insulating plate is equal to that of a pipe fitting of the water falling pipe, coating PVC glue on an upper part accessory of the water falling port, and tightly connecting the flange plate with a bottom waterproof coiled material to be plugged into the position of the water falling port.
Further, the method also comprises the following steps:
vertical surface self-adhesive coiled material paving
(1) Construction of additional layer of vertical self-adhesive waterproof coiled material
Constructing an external and internal corner additional layer on the vertical surface self-adhesive waterproof coiled material; the additional layer of self-adhesive waterproofing membrane at the bottom was cut in the form of drops, with the longest dimension being 300mm and the widest dimension being 250mm, the widest dimension being at position 2/3. Cutting the upper layer of waterproof air-barrier film into a dovetail shape, wherein the width of the dovetail shape is 200mm, and the opening angle at the dovetail position is 60 degrees;
tearing off an isolating film of an additional layer of the self-adhesive coiled material, sticking the water-drop-shaped additional layer on the heat-insulating plate with the upper edge 50mm higher than the chamfer angle, overlapping the coiled material with the bottom-layer waterproof coiled material by 100mm, sticking an additional layer of the upper dovetail on the internal corner position of the side wall, sticking the dovetail on the water-drop-shaped additional layer along the angle of the heat-insulating plate, and tightly pressing the edge part of the additional layer by hand; the external corner bottom waterproof additional layer is cut into a shield shape, then is stuck to the chamfer position of the heat-insulation plate, and is lapped with the bottom self-adhesive waterproof coiled material by 100 mm;
(2) large area construction of vertical face self-adhesive water-proof coiled material
Firstly, sticking the position of a water falling port, wherein the height of the coiled material is not less than 600mm, and the lap joint with the planar coiled material is not less than 250 mm; tearing the coiled material isolation paper by 300mm, pressing the upper part of the coiled material on the side wall, continuously tearing the isolation paper downwards, forcibly compacting by using a roller to ensure that the steam-proof coiled materials are firmly bonded, wherein the rest positions are the same as the positions of the water falling port, and the construction sequence is opposite to the gradient direction; the paving direction is the same as the steam-insulating coiled material direction, construction is carried out from low to high, the lapping width of the vertical surface coiled material is 100mm, and the lapping width of the vertical surface coiled material and the plane coiled material is 100 mm;
(3) opening at the position of water falling port
And cutting off the self-adhesive waterproof coiled material along the inner pipe diameter of the water outlet by using a wallpaper cutter.
Further, the method also comprises the following steps:
construction of hot-melt coiled material
(1) Surface layer coiled material paving of plane slate surface
Firstly, the whole roll of coiled material is unfolded and virtually laid on the laying part, and the coiled material is rolled up from the head by using a PVC pipe with the diameter of 110mm and the same length as the breadth after the coiled material is properly laid; the surface coiled material is required to be covered from the surface with the high gradient to the surface with the low gradient, the surface coiled material is arranged from the low to the high according to the elevation, the coiled materials on the slope and the vertical surface are paved and adhered from the bottom to the top, and the coiled materials are lapped in the water flow direction;
when the coiled materials are paved, the lap seams of the short edges between the same layers are staggered by at least 1.5m, the upper and lower layers of coiled materials cannot be paved vertically, and the lap seams of the long edges of the coiled materials between the upper and lower layers are staggered by 1/3-1/2 of the width of the coiled materials; when in waterproof construction, the lap joint widths of the long edges and the short edges of the SBS coiled material are all more than or equal to 100 mm;
the lap seam and the coiled material with the head folded must be baked by 100 percent, the molten asphalt must be extruded from the edge end when being bonded and paved, and the width of the molten asphalt overflowing is not less than 5 mm;
(2) additional layer for internal and external corner
The method for manufacturing the surface layer waterproof roll concave-convex corner additional layer and the method for manufacturing the bottom layer waterproof roll concave-convex corner are adhered by a hot melting method.
(3) Vertical surface layer coiled material paving paste
The vertical surface coiled material is paved and adhered with the vertical surface bottom coiled material, and the vertical surface coiled material is paved and adhered with the vertical surface bottom coiled material by a hot melting method.
By adopting the technical scheme, compared with the prior art, the invention has the following advantages: the' flat roof heat-insulating waterproof system of the passive building constructed according to the method meets the requirements of the passive building on the performance indexes of the roof part such as air tightness, water tightness, heat-insulating performance, heat bridge isolation and the like, so that the passive building forms a stable closed environment inside, a steam-isolating layer can avoid heat loss caused by indoor and outdoor air permeation and exchange, reduce energy consumption and carbon dioxide emission, greatly relieve energy consumption and greenhouse gas emission pressure in the urbanization process of China, and simultaneously relieve the huge pressure caused by the transportation of energy resources such as coal for heating in winter and the huge pressure of refrigeration to a national power system in summer to a certain extent because mechanical active heating and refrigeration are not needed, thereby having great significance for environmental protection, energy safety and transportation in China.
The flat roofing heat preservation waterproof system of passive form building adopts XPS board base layer to paste fire insulation type self-adhesion waterproofing membrane construction technique, the inlet for stom water accessory adopts segmentation socket joint formula area ring flange dish PVC inlet for stom water construction technique, heat preservation waterproof system adopts construction techniques such as heat preservation and the progressive construction technique of self-adhesion waterproofing membrane subregion, the waterproof performance of roofing has been improved, can effectually guarantee the drying of heat preservation, the quality is not influenced by overcast and rainy weather, the construction is simple, the node is easily handled, the construction speed is fast, use the roofing of 1000 square meters as the example, save the time limit for a project 15 days than traditional roofing construction.
The passive building flat roof heat-insulating waterproof system is a systematic roof waterproof system, can effectively improve the waterproof performance of a roof, and has long waterproof service life. After verification: the cost of the passive building flat roof heat-insulating and waterproof system is 265 yuan per square meter, the cost of the common building is 250 yuan per square meter, but the maintenance cost of 5-year period is integrated, and the manufacturing cost (315 yuan per square meter) of the passive building flat roof heat-insulating and waterproof system is far lower than that of the common roof waterproof system (450 yuan per square meter) and is 30 percent lower.
Airtightness: the equivalent air thickness of the water vapor penetration performance is more than 1500 m: (SD value) is more than or equal to 1500 m.
Water tightness: is impermeable to water.
Thermal insulation performance: the thermal conductivity coefficient is less than or equal to 0.015[ W/(m.K) ].
Bridge cutoff and heat insulation: the roof has no exhaust pipe and no heat bridge.
The present invention will be described in detail with reference to examples.
Drawings
FIG. 1 is a flow chart of a partitioned dry operation construction method of a passive building flat roof heat-preservation waterproof system in the embodiment of the invention;
FIG. 2 is a schematic structural diagram of a passive building flat roof heat-insulating waterproof system in the embodiment of the invention;
in the figure, the position of the upper end of the main shaft,
1-hot melt waterproof layer, 2-self-adhesive waterproof layer, 3-insulating layer, 4-steam barrier layer and 5-concrete base layer.
Detailed Description
In the embodiment, as shown in fig. 1 and 2, a passive building flat roof heat-insulating waterproof system is composed of a vapor barrier layer 4, an insulating layer 3, a self-adhesive waterproof layer 2 and a hot-melt waterproof layer 1, which are arranged on a concrete base layer 5; the steam-insulating layer 4 is a system bottom layer, the heat-insulating layer 3 is positioned on the upper part of the steam-insulating layer 4, the self-adhesive waterproof layer 2 and the heat-insulating layer 3 are constructed in a partition mode, the self-adhesive waterproof coiled material is directly adhered to the heat-insulating plate, and the hot-melt waterproof layer 1 is a system surface layer; the steam barrier layer 4 adopts a glass fiber tire self-adhesive SBS modified asphalt steam barrier coiled material with a SKD alkali-resistant special aluminum foil surface layer with the thickness of 1.2 mm; the heat-insulating layer 3 is an XPS heat-insulating plate; the self-adhesive waterproof layer 2 is made of a TSU glass fiber tire fire-proof SBS modified asphalt self-adhesive waterproof coiled material with the thickness of 3 mm; the hot-melt waterproof layer 1 is a polyester-based SBS modified asphalt waterproof coiled material with a thickness of 4mm and containing reinforcing ribs on the surface of an SPT slate.
The partition type dry operation construction method of the passive building flat roof heat insulation waterproof system comprises the following steps:
1. preparation for construction
And carrying out roof waterproof partition according to the size of the roof, wherein the partition interval is not more than 12m, avoiding positions such as roof pipelines, parapet walls and the like, floor drains and the like at partition positions, and cleaning up dust residues and problems possibly endangering quality by using shovels, besoms and the like after the construction of the structural slope finding layer is finished.
2. Coating interface agent
The concrete base layer 5 is treated by using water-based cold primer oil, and the brushing sequence is from far to near and from high to low; the roller brush is uniformly brushed on a concrete base layer 5 with the dosage of 0.2kg per square meter, and the base layer treating agent cannot be exposed to white after the roller brush is finished.
3. Fitting for installing lower part of drain
The side drainage outlet is installed, the side drainage inlet adopts a PVC component, the pipe diameter is 125mm, the width of the flange plate is 100mm, the side wall is provided with a heat-preservation hole with the width of 130mm, the drainage component is plugged into the hole, and PU (polyurethane) glue is used for foaming and filling gaps among the pipe fitting, the heat-preservation plate and the side wall.
4. Construction of steam barrier
(1) Plane vapour barrier layer paving plaster
The method comprises the steps of determining the sequence and the direction of the coiled materials, snapping lines on a concrete base layer 5, then paving and pasting the steam-insulating coiled materials of the side wall at the position of the water falling port according to a reference line, turning over the coiled materials by 50mm upwards at the joint position of the steam-insulating coiled materials and the side wall, paving and pasting the coiled materials along the horizontal direction of the side wall, and then paving large-area self-adhesive steam-insulating coiled materials from the position, low on the roof, to the.
When in construction, the isolating film is firstly removed, the sticky surface is paved along the reference line, and the isolating film is removed to roll the surface of the coiled material and extrude air, so as to ensure the initial bonding strength. The longitudinal lap seam of the steam-insulating coiled material needs to be straight, the width of the lap seam is 80mm, and the longitudinal lap seam is compacted by a roller. When the temperature is lower than 5 ℃, the steam barrier layer 4 needs to be heated by a spray gun to activate the viscosity, the construction method is the same as that of a hot-melt coiled material, when a self-adhesive waterproof coiled material is paved, a person holds a gasoline blast lamp (spray gun) and carries out reciprocating movement on the coiled material to bake the included angle between the two layers of coiled materials, the blast lamp is about 300mm away from the junction until the bottom glue layer of the coiled material is black and glossy and is mixed with micro bubbles (a large amount of large bubbles cannot be generated), and then the coiled material is pushed and rolled by the foot to be paved. The lap seam and the end-up web must be 100% baked.
(2) Additional layer paving paste
And (3) paving and pasting an additional layer of the facade internal and external corners after the construction of the plane coiled material is finished, and constructing the additional layer by the same method as the step (1) of constructing the additional layer of the facade self-adhesive waterproof coiled material in the step 9.
(3) Vertical face vapour barrier layer paving plaster
The position of the water falling port is firstly pasted, the height of the coiled material is not less than 600mm, and the lap joint with the plane coiled material is not less than 250 mm. Tearing the coiled material isolation paper by 300mm, pressing the upper part of the coiled material on the side wall, continuously tearing the isolation paper downwards, forcibly compacting by using a roller to ensure that the steam-proof coiled materials are firmly bonded, ensuring the rest positions to be the same as the positions of the water falling openings, and ensuring that the construction sequence is opposite to the gradient direction.
And after the steam-isolating layer 4 is qualified, carrying out the next construction procedure.
5. Paving of plane heat-insulating layer
The heat preservation layer 3 is constructed in the subareas at the positions with higher gradients, and each subarea is constructed from low to high. The heat-insulating layer 3 is adhered by using the post-foaming PU glue. Firstly, PU glue is sprayed on the steam-isolating coiled material according to the S shape by a glue gun. And (3) tightly extruding the heat insulation plates, when the gaps between the plates are larger than 2mm, fully filling the gaps by using heat insulation strips, and polishing the positions with the height difference between the plates larger than 1.5mm to be smooth. When the laminated plates are laid, the seams of the upper and lower plates are staggered, and the thicknesses of two adjacent plate edges on the surface are consistent.
6. Construction of plane self-adhesive coiled material
Directly bonding the TSU glass fiber tire fire insulation type SBS modified asphalt self-adhesive waterproof coiled material with the thickness of 3mm on the heat insulation, laying from low to high, and paving and pasting the middle steam layer coiled material in the same step 4 by using the construction method. If the temperature is lower than 5 ℃, the paste is spread by auxiliary heating. The paving adopts a rolling paving method. Only the release paper needs to be peeled off and the rolled and spread coil materials are carried out simultaneously. The method specifically comprises the following steps: a steel pipe with the diameter of 30mm and the diameter of 1500mm penetrates through a paper core cylinder at the center of the whole coiled material, one end of each steel pipe is held by two persons, the whole coiled material is lifted to the starting end of a place to be paved, and the steel pipes are aligned to the elastic powder line on the base layer. The lap joint of the self-adhesive waterproof coiled material and the side wall steam-proof layer 4 coiled material is more than or equal to 250mm, the coiled material is rolled and expanded by about 500mm along the paving and pasting advancing direction, the expanded 50cm coiled material is lifted, the isolation paper is peeled off and folded into a strip shape, the strip shape is pulled out from the lower part of the whole coiled material and is wound on a used paper core barrel, and meanwhile, the coiled material with the starting end of 50cm is adhered and paved firmly by aligning to the chalk line. Then 1 person stands in front of the coiled material and lifts and peels the isolation paper against the coiled material, and rolls up the paper core cylinder while lifting and peeling; two persons respectively stand at two sides of the coiled material, and hand the steel pipes penetrating through the tubular cores of the coiled material to align with the elastic powder lines and roll and spread the coiled material forwards; the rolled up coil was vented, compacted and glued firmly behind the coil by 1 person. When the self-adhesion waterproof construction is carried out, the lap joint width of the long side and the short side of the SBS coiled material is 100 mm. When the construction is carried out to the joint position of the waterproof subareas, the self-adhesive waterproof coiled material at the position of the waterproof subareas which is constructed firstly is downwards turned and is lapped with the steam barrier layer 4, the lapping width is 100mm, and the lapping length of the waterproof coiled material at the next subarea and the coiled material at the upper part of the last subarea is 100 mm.
7. Construction of vertical surface heat-insulating layer
The facade side wall is insulated by adopting a double-layer graphite polyphenyl plate with the thickness of 110mm, and the graphite polyphenyl plate is printed on the insulating plate by using post-foaming PU glue and is pressed on the side wall for pasting. The double-layer graphite polystyrene board is adhered in staggered joint, and the staggered joint width is not less than 300 mm. And after the insulation board is adhered, drilling an expansion anchor bolt hole by using a percussion drill. The broken bridge is fixed by knocking in, each square of the anchor bolts is 6, and each insulation board is not less than 2. Cutting an isosceles right triangle strip with the length of the right-angle side being 100mm, making a vertical-face waterproof chamfer angle, and adhering the strip between the vertical-face heat preservation coil and the plane waterproof coil by using PU glue.
8. Fitting for installing upper part of drain
And (3) perforating the heat-insulating plate at the position of the water falling port, wherein the diameter of the heat-insulating plate is equal to that of a pipe fitting of the water falling pipe, coating PVC glue on an upper part accessory of the water falling port, and tightly connecting the flange plate with a bottom waterproof coiled material to be plugged into the position of the water falling port.
9. Vertical surface self-adhesive coiled material paving
(1) Construction of additional layer of vertical self-adhesive waterproof coiled material
And constructing an external and internal corner additional layer on the vertical surface self-adhesive waterproof coiled material. The additional layer of self-adhesive waterproofing membrane at the bottom was cut in the form of drops, with the longest dimension being 300mm and the widest dimension being 250mm, the widest dimension being at position 2/3. And cutting the upper layer of waterproof air-barrier film into a dovetail shape with the width of 200mm and the opening angle at the dovetail position of 60 degrees. Tear self-adhesion coiled material additional layer barrier film, paste on the insulation board along 50mm on going out the chamfer with water droplet shape additional layer, coiled material and bottom waterproofing membrane overlap joint 100mm, paste upper portion forked tail additional layer in the side wall reentrant corner position again, the forked tail is in the same direction as extending the insulation board angle and pasting on water droplet shape additional layer, presses tightly with the hand additional layer edge position. The waterproof additional layer of external corner bottom is cut into the shield shape, then pastes to heated board chamfer position, with bottom self-adhesion waterproofing membrane overlap joint 100mm, and the mode is pasted with reentrant corner dovetail additional layer to the external corner dovetail additional layer mode of pasting, construction method: tearing self-adhesion coiled material additional layer barrier film, pasting on the insulation board along 50mm on going out the chamfer with water droplet shape additional layer, coiled material and bottom waterproofing membrane overlap joint 100mm, paste upper portion shield additional layer in the side wall reentrant corner position again, shield is pasted on water droplet shape additional layer along extending the insulation board angle, presses tightly with the hand additional layer edge position.
(2) Large area construction of vertical face self-adhesive water-proof coiled material
The position of the water falling port is firstly pasted, the height of the coiled material is not less than 600mm, and the lap joint with the plane coiled material is not less than 250 mm. Tearing the coiled material isolation paper by 300mm, pressing the upper part of the coiled material on the side wall, continuously tearing the isolation paper downwards, forcibly compacting by using a roller to ensure that the steam-proof coiled materials are firmly bonded, ensuring the rest positions to be the same as the positions of the water falling openings, and ensuring that the construction sequence is opposite to the gradient direction. The paving direction is the same as the steam-insulating coiled material direction, construction is carried out from low to high, the lapping width of the vertical surface coiled material is 100mm, and the lapping width of the vertical surface coiled material and the plane coiled material is 100 mm.
(3) Opening at the position of water falling port
And cutting off the self-adhesive waterproof coiled material along the inner pipe diameter of the water outlet by using a wallpaper cutter.
10. Construction of hot-melt coiled material
(1) Surface layer coiled material paving of plane slate surface
The whole roll of coiled material is firstly unfolded and virtually laid on the laying part, and after the whole roll of coiled material is properly laid, the coiled material is rolled up from the head by using a PVC pipe with the diameter of 110mm and the same length as the width. The surface coiled material must be covered from the high slope side to the low side, and from the low side to the high side according to the elevation, and the coiled material on the slope and the vertical side should be laid and pasted from the bottom to the top, so that the coiled material is lapped according to the water flow direction. When the coiled materials are paved, the lap seams of the short edges between the same layers are staggered by at least 1.5m, the upper and lower layers of coiled materials cannot be paved perpendicularly, and the lap seams of the long edges of the coiled materials between the upper and lower layers are staggered by 1/3-1/2 of the width of the coiled materials. When in waterproof construction, the lap joint width of the long side and the short side of the SBS coiled material is more than or equal to 100 mm. When the waterproof coiled material is paved by a hot melting method, a gasoline blowtorch (spray gun) is held by one person to ensure that the included angle of two layers of coiled materials is just formed by baking the coiled materials in a reciprocating mode, the blowtorch is about 300mm away from a junction, a bottom waterproof upper surface protective film is swept away, meanwhile, a surface layer coiled material is melted and dripped, and when the bottom surface adhesive layer of the coiled material is black and glossy and is mixed with micro bubbles (a large number of large bubbles cannot be generated), the coiled material is timely and lightly stepped on by feet to push the coiled material to. The lap seam and the coiled material with the head folded must be baked by 100 percent, the molten asphalt must be extruded from the edge end when the lap seam and the coiled material are adhered and paved, and the width of the overflowing molten asphalt is not less than 5 mm.
(2) Additional layer for internal and external corner
The method for manufacturing the surface layer waterproof roll concave-convex corner additional layer and the method for manufacturing the bottom layer waterproof roll concave-convex corner are adhered by a hot melting method.
(3) Vertical surface layer coiled material paving paste
The vertical surface coiled material is paved and adhered with the vertical surface bottom coiled material, and the vertical surface coiled material is paved and adhered with the vertical surface bottom coiled material by a hot melting method.
11. Roof water test
Before water storage, all roof openings which are in trouble with the test are closely plugged. The water test on the roof adopts an artificial water storage method, and water is pressurized and conveyed to the roof by a water pump. The shallowest position of the water storage height of the roof is not less than 100mm, and the water storage time is not less than 24 hours. The water storage experiment check can be hidden after no leakage exists. After the water storage is finished, the water stored on the roof is discharged out through the water outlet in an organized manner.
The cost comparison table of the passive building flat roof heat-insulating waterproof system and the traditional roof is as follows:
the foregoing is illustrative of the best mode of the invention and details not described herein are within the common general knowledge of a person of ordinary skill in the art. The scope of the present invention is defined by the appended claims, and any equivalent modifications based on the technical teaching of the present invention are also within the scope of the present invention.
Claims (10)
1. The utility model provides a flat roofing heat preservation waterproof system of passive form building which characterized in that: the heat-insulating concrete is characterized by comprising a steam-insulating layer (4), a heat-insulating layer (3), a self-adhesive waterproof layer (2) and a hot-melt waterproof layer (1) which are arranged on a concrete base layer (5);
the steam-insulating layer (4) is a system bottom layer, the heat-insulating layer (3) is positioned at the upper part of the steam-insulating layer (4), the self-adhesive waterproof layer (2) and the heat-insulating layer (3) are constructed in a partition mode, the self-adhesive waterproof coiled material is directly adhered to the heat-insulating plate, and the hot-melt waterproof layer (1) is a system surface layer;
the steam-isolating layer (4) adopts a SKD alkali-resistant special aluminum foil surface layer glass fiber tire self-adhesive SBS modified asphalt steam-isolating coiled material with the thickness of 1.2 mm;
the heat-insulating layer (3) adopts an XPS heat-insulating plate;
the self-adhesive waterproof layer (2) is made of a TSU glass fiber tire fire-proof SBS modified asphalt self-adhesive waterproof coiled material with the thickness of 3 mm;
the hot-melt waterproof layer (1) adopts a polyester tire SBS modified asphalt waterproof coiled material with a thickness of 4mm and a reinforced rib on the rock surface of an SPT plate.
2. The construction method of the passive building flat roof heat-insulating waterproof system according to claim 1, characterized by comprising the following steps:
construction preparation: carrying out roof waterproof partition according to the size of the roof, wherein the partition interval is not more than 12m, and the partition positions are divided
The positions of roof pipelines, parapet walls and the like, floor drains and the like are avoided, and a shovel, a broom and the like are used for cleaning dust, impurities and problems possibly endangering quality after the construction of the structure slope finding layer is completed;
coating an interface agent: the concrete base layer (5) is treated by using water-based cold primer oil, and the brushing sequence is from far to near and from high to low; the roller brush is uniformly coated on the concrete base (5), and the base treating agent cannot be exposed after roller coating.
3. The construction method according to claim 2, further comprising the steps of:
installing a lower part accessory of the drain: and (3) installing a side drainage outlet, wherein a side drainage rainwater outlet adopts a PVC (polyvinyl chloride) component, a drainage component is plugged into the opening, and gaps among the pipe fitting, the insulation board and the side wall are filled with PU (polyurethane) glue foam.
4. The construction method according to claim 2, further comprising the steps of:
and (3) constructing a steam barrier:
(1) plane vapour barrier layer paving plaster
Determining the sequence and the direction of the paving and pasting of the coiled materials, snapping lines on a concrete base layer (5), paving and pasting the steam-insulating coiled materials of the side wall at the position of the water falling port according to a reference line, turning up the coiled materials at the joint position of the steam-insulating coiled materials and the side wall, paving and pasting the coiled materials along the horizontal direction of the side wall, and paving large-area self-adhesive steam-insulating coiled materials from the low position of the roof to the high position;
when in construction, the isolating film is firstly removed, the sticky surface is paved along a datum line, the surface of the coiled material is rolled immediately after the isolating film is removed, and air is extruded out, so as to ensure the initial bonding strength;
longitudinal lap seams of the steam-insulating coiled materials are straightened, the width of the lap seams is 80mm, and the longitudinal lap seams are compacted forcefully by a roller; when the temperature is lower than 5 ℃, the steam barrier layer (4) needs to be heated by a spray gun to activate the viscosity, when the self-adhesive waterproof coiled material is paved, a person holds a gasoline blast lamp (spray gun) and just faces the coil to perform reciprocating movement to bake the included angle between the two layers of coiled materials, the distance between the blast lamp and the junction is about 300mm, and the coiled material is pushed and rolled by a foot to be paved when the glue layer on the bottom surface of the coiled material is black and glossy and is mixed with micro bubbles (a large amount of large bubbles cannot be generated);
(2) additional layer paving paste
Paving and pasting an additional layer of the external and internal corners of the vertical surface after the construction of the planar coiled material is finished;
(3) vertical face vapour barrier layer paving plaster
Firstly, sticking the position of a water falling port, wherein the height of the coiled material is not less than 600mm, and the lap joint with the planar coiled material is not less than 250 mm;
tearing the coiled material isolation paper by 300mm, pressing the upper part of the coiled material on the side wall, continuously tearing the isolation paper downwards, forcibly compacting by using a roller to ensure that the steam-proof coiled materials are firmly bonded, ensuring the rest positions to be the same as the positions of the water falling openings, and ensuring that the construction sequence is opposite to the gradient direction.
5. The construction method according to claim 2, further comprising the steps of:
paving of plane heat-insulating layer
The heat-insulating layer (3) is constructed in subareas at positions with higher gradients, and each subarea is constructed from low to high; the heat-insulating layer (3) is pasted by using the post-foaming PU glue;
firstly, PU glue is applied to the steam-insulating coiled material according to the S shape by a glue gun;
tightly squeezing the heat insulation plates, and when the gap between the plates is larger than 2mm, applying heat insulation strips to fully fill the gap, and polishing the part with the height difference larger than 1.5mm between the plates;
when the laminated plates are laid, the seams of the upper and lower plates are staggered, and the thicknesses of two adjacent plate edges on the surface are consistent.
6. The construction method according to claim 2, further comprising the steps of:
construction of plane self-adhesive coiled material
Directly bonding a TSU glass fiber tire fire insulation type SBS modified asphalt self-adhesive waterproof coiled material with the thickness of 3mm on the heat insulation layer, and paving from low to high;
if the temperature is lower than 5 ℃, paving in an auxiliary heating mode; the paving adopts a rolling paving method; only need to peel off the barrier paper and roll the roll and go on simultaneously, specifically do: a steel pipe with the diameter of 30mm and the diameter of 1500mm penetrates through a paper core cylinder at the center of the whole coiled material, one end of each steel pipe is held by two persons, the whole coiled material is lifted to the starting end of a place to be paved, and the steel pipe is aligned to the elastic powder line on the base layer; lapping the self-adhesive waterproof coiled material and a coiled material of the side wall steam-insulating layer (4) for more than or equal to 250mm, rolling and spreading the coiled material for 500mm along the forward direction of the paving and pasting, lifting 50cm of the spread coiled material, peeling off the isolation paper, folding the isolation paper into strips, pulling the strips out from the lower part of the whole coiled material to be wound on a used paper core barrel, and simultaneously aligning to the chalk line to glue and spread the 50cm coiled material at the starting end firmly; then 1 person stands in front of the coiled material and lifts and peels the isolation paper against the coiled material, and rolls up the paper core cylinder while lifting and peeling; two persons respectively stand at two sides of the coiled material, and hand the steel pipes penetrating through the tubular cores of the coiled material to align with the elastic powder lines and roll and spread the coiled material forwards; 1, exhausting, compacting and firmly attaching the rolled and paved coiled material behind the coiled material; when the self-adhesive waterproof construction is carried out, the lap joint width of the long side and the short side of the SBS coiled material is 100 mm;
when the construction is carried out to the joint position of the waterproof subareas, the self-adhesive waterproof coiled material at the position of the waterproof subareas which is constructed firstly is downwards turned and is lapped with the steam barrier layer (4), the lapping width is 100mm, and the lapping length of the waterproof coiled material at the next subarea and the coiled material at the upper part of the last subarea is 100 mm.
7. The construction method according to claim 2, further comprising the steps of:
construction of vertical surface heat-insulating layer
Adopting a double-layer 110 mm-thick graphite polyphenyl plate for heat preservation of the vertical side wall, using a post-foaming PU adhesive to print on the heat preservation plate, and pressing the heat preservation plate on the side wall for pasting; the double-layer graphite polystyrene board is adhered in a staggered joint way, and the staggered joint width is not less than 300 mm; after the insulation board is pasted, drilling an expansion anchor bolt hole by using a percussion drill; knocking in collision broken bridge anchor bolts for fixing, wherein 6 anchor bolts are arranged per square, and each insulation board is not less than 2; cutting an isosceles right triangle strip with the length of the right-angle side being 100mm, making a vertical-face waterproof chamfer angle, and adhering the strip between the vertical-face heat preservation coil and the plane waterproof coil by using PU glue.
8. The construction method according to claim 2, further comprising the steps of:
fitting for installing upper part of drain
And (3) perforating the heat-insulating plate at the position of the water falling port, wherein the diameter of the heat-insulating plate is equal to that of a pipe fitting of the water falling pipe, coating PVC glue on an upper part accessory of the water falling port, and tightly connecting the flange plate with a bottom waterproof coiled material to be plugged into the position of the water falling port.
9. The construction method according to claim 2, further comprising the steps of:
vertical surface self-adhesive coiled material paving
(1) Construction of additional layer of vertical self-adhesive waterproof coiled material
Constructing an external and internal corner additional layer on the vertical surface self-adhesive waterproof coiled material; cutting the bottom self-adhesive waterproof roll additional layer into a water drop shape, wherein the longest part is 300mm, the widest part is 250mm, and the widest part is located at the position of 2/3;
cutting the upper layer of waterproof air-barrier film into a dovetail shape, wherein the width of the dovetail shape is 200mm, and the opening angle at the dovetail position is 60 degrees;
tearing off an isolating film of an additional layer of the self-adhesive coiled material, sticking the water-drop-shaped additional layer on the heat-insulating plate with the upper edge 50mm higher than the chamfer angle, overlapping the coiled material with the bottom-layer waterproof coiled material by 100mm, sticking an additional layer of the upper dovetail on the internal corner position of the side wall, sticking the dovetail on the water-drop-shaped additional layer along the angle of the heat-insulating plate, and tightly pressing the edge part of the additional layer by hand; the external corner bottom waterproof additional layer is cut into a shield shape, then is stuck to the chamfer position of the heat-insulation plate, and is lapped with the bottom self-adhesive waterproof coiled material by 100 mm;
(2) large area construction of vertical face self-adhesive water-proof coiled material
Firstly, sticking the position of a water falling port, wherein the height of the coiled material is not less than 600mm, and the lap joint with the planar coiled material is not less than 250 mm; tearing the coiled material isolation paper by 300mm, pressing the upper part of the coiled material on the side wall, continuously tearing the isolation paper downwards, forcibly compacting by using a roller to ensure that the steam-proof coiled materials are firmly bonded, wherein the rest positions are the same as the positions of the water falling port, and the construction sequence is opposite to the gradient direction; the paving direction is the same as the steam-insulating coiled material direction, construction is carried out from low to high, the lapping width of the vertical surface coiled material is 100mm, and the lapping width of the vertical surface coiled material and the plane coiled material is 100 mm;
(3) opening at the position of water falling port
And cutting off the self-adhesive waterproof coiled material along the inner pipe diameter of the water outlet by using a wallpaper cutter.
10. The construction method according to claim 2, further comprising the steps of:
construction of hot-melt coiled material
(1) Surface layer coiled material paving of plane slate surface
Firstly, the whole roll of coiled material is unfolded and virtually laid on the laying part, and the coiled material is rolled up from the head by using a PVC pipe with the diameter of 110mm and the same length as the breadth after the coiled material is properly laid; the surface coiled material is required to be covered from the surface with the high gradient to the surface with the low gradient, the surface coiled material is arranged from the low to the high according to the elevation, the coiled materials on the slope and the vertical surface are paved and adhered from the bottom to the top, and the coiled materials are lapped in the water flow direction;
when the coiled materials are paved, the lap seams of the short edges between the same layers are staggered by at least 1.5m, the upper and lower layers of coiled materials cannot be paved vertically, and the lap seams of the long edges of the coiled materials between the upper and lower layers are staggered by 1/3-1/2 of the width of the coiled materials; when in waterproof construction, the lap joint widths of the long edges and the short edges of the SBS coiled material are all more than or equal to 100 mm;
the lap seam and the coiled material with the head folded must be baked by 100 percent, the molten asphalt must be extruded from the edge end when being bonded and paved, and the width of the molten asphalt overflowing is not less than 5 mm;
(2) additional layer for internal and external corner
The method for manufacturing the additional layers of the internal and external corners of the surface waterproof roll material is the same as the method for manufacturing the internal and external corners of the bottom waterproof roll material, and the layers are adhered by a hot melting method;
(3) vertical surface layer coiled material paving paste
The vertical surface coiled material is paved and adhered with the vertical surface bottom coiled material, and the vertical surface coiled material is paved and adhered with the vertical surface bottom coiled material by a hot melting method.
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| GB202003684D0 (en) * | 2020-03-13 | 2020-04-29 | Euro Polymers Consult Ltd | Roof assembly |
| CN111997207B (en) * | 2020-08-10 | 2022-03-15 | 安徽金寨抽水蓄能有限公司 | Waterproof process for 500KV switch station |
| CN113137011A (en) * | 2021-03-16 | 2021-07-20 | 中国建筑第八工程局有限公司 | Passive type roof partition stubble throwing structure and construction method |
| CN113235837A (en) * | 2021-05-25 | 2021-08-10 | 上海宝冶集团有限公司 | Waterproof construction method for obliquely-folded roof of archaized building |
| CN113622604A (en) * | 2021-08-18 | 2021-11-09 | 江苏省苏中建设集团股份有限公司 | Passive house roof outlet vertical pipeline air-tightness construction method |
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| CN108118839B (en) * | 2018-01-02 | 2023-11-03 | 山东沃适德节能科技有限公司 | Passive roof waterproof heat-preserving slope finding system and construction method thereof |
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