US3664079A

US3664079A - Insulation support

Info

Publication number: US3664079A
Application number: US42248A
Authority: US
Inventors: John O Bowser
Original assignee: Aluminum Company of America
Current assignee: Howmet Aerospace Inc
Priority date: 1970-06-01
Filing date: 1970-06-01
Publication date: 1972-05-23
Anticipated expiration: 1989-05-23

Abstract

A building structure in which a rib extends inwardly from exterior sheathing and has a T-shaped base on which is supported means for holding an insulation panel in position beneath the sheathing, the said means including a channel-shaped portion in which the said base is positioned.

Description

[451 May 23, 1972 United States Patent Bowser FOREIGN PATENTS OR APPLICATIONS [54] INSULATION SUPPORT [72] Inventor:

1951 Germanymu... 1953 John O. Bowser, Natrona Heights, Pa.

52/359 ....52/461 Great Britain..........'...........i....52/493 691,838 Great Britain 933,787

[73] Assignee: Aluminum Company of America, Pittsburgh, Pa. June 1, 1970 Appl. No.: 42,248

Primary Examiner-Price C. Faw, .Ir. Attomey-Edward B. F oote [22] Filed:

[57] ABSTRACT A building structure in which a rib extends inwardly from exterior sheathing and has a T-shaped base on which is supported means for holding an insulation panel in position beneath the sheathing, the said means including a channelshaped portion in which the said base is positioned.

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2 Claims, 1 Drawing Figure References Cited UNITED STATES PATENTS 3,360,896 Wright............................,........52/489 Patented May 23, 1972 3,664,079

lNl/EN TOR. JOHN 0. BOWSER Attorney DESCRIPTION OF THE INVENTION This invention relates to insulated structures, and relates particularly to structures in which insulation panels are supported adjacent the interior of building siding or roofing.

It is the object of this invention to provide a simple and economical way of mounting insulation panels interiorly of roofing or siding, and which permits the insulation panels to be quickly and easily put in place or removed.

The invention involves a building structure in which ribs carried by outer sheathing i.e., roofing or siding for the building extend inwardly toward the building interior, which ribs have a substantially T-shaped base which is mounted in a channel in an elongated strip which is also provided with means for holding an insulation panel in place under the inner face of the sheathing. The aforesaid rib baseis retained in the channel by shoulders which project into the channel from the side walls of the channel and overlie the rib base. Preferably the rib base rests on bearing surfaces in the channel, below the aforesaid shoulders.

The invention will be described below in connection with the type of building structure described in U.S. Pat. application Ser. No. 30,106, filed Apr. 20, 1970, by Jay R. Stemler, (the latter application and this application being assigned to the same assignee) in which splines holding adjacent edges of roofing or siding panels form ribs which extend inwardly toward the building interior and have a T-shaped base which rests on, and is clamped to, structural framing members of the building. However, it will be understood that the invention is not limited to using as the ribs the splines described in the Stemler application. For example, the roofing or siding may be provided with ribs integral therewith or attached thereto.

The invention is illustrated in the accompanying drawing, which is a perspective view, partly in section, of the underside of a portion of a roof structure embodying the invention. Referring to the drawing, adjacent corrugated roofing panels 1 are supported by conventional roof purlins 2. Depending from the inwardly-turned edges 3 of the adjacent panels is a rib 4 having an elongated channel 5 in which the panel edges 3 are positioned and retained in place by a strip 6 of flexible material pressed tightly in place in the channel 5. The rib 4 extends transversely across the purlins 2 of the roof and has a T- shaped base 7 which rests on the upper flange 2 of the purlin and is held thereto by clamps (not shown) as described in the aforesaid Stemler application.

Supported on the base 7 as described below is an insulationretaining strip 8 consisting of a channel-shaped section 9 and flanges 10 extending laterally from opposite sides thereof beneath the edges of the insulation panels 11, thereby retaining the latter panels in place, preferably with their outer face in contact with the underside of the corrugations in the panels 1. The base 7 rests on a pair of oppositely disposed bearing surfaces 12 extending longitudinally of the recess 13 formed by the opposing side walls 14 of the section 9. The base is retained in the recess 13 by a pair of shoulders 15 which project inwardly from the side walls 14, which shoulders are spaced from, and parallel to, the bearing surfaces 12 and overlie the side edges of the base 7. In other words, the bearing surfaces 12 and the shoulders 15 form slots therebetween into which the edges ofthe base 7 fit.

To facilitate passage of the base 7 past the shoulders 15 and into the recess 13 in joining the strip 8 to the rib 4, the outer faces 16 of those shoulders slope outwardly to provide a funnel-shaped entrance to the recess, and the side walls 14 are sufficiently flexible and resilient to permit them to spread apart when the faces 16 are pressed upwardly against the base 7. Once the base 7 clears the shoulders 15, the side walls 14 5 snap back to their original position, thereby securing the base between the bearing surfaces 12 and the underside of the shoulders 15. Similarly, the strips 8 can be removed by pulling them away from the rib base 6 with sufficient force to spread the side walls 14 outwardly and permit the shoulders 15 to clear the side edges of the base 7.

Thus, the strips 8 can easily be assembled with the roofing panels by forcing the base 7 into the recess 13 as described above, with the flanges 10 underlying the edges of the insulation panels. Likewise, if it is desired to remove or replace insulation panels, the strips 8 can be pulled from the base 7, releasing the insulation panels.

It is advantageous for the base 7 to have a sliding fit with the bearing surfaces 12 and the underside of the shoulders 15, enabling the rib 5 to move longitudinally of the recess 13 upon shifting of the roofing panels due to thermal expansion or contraction, or to a change in load conditions. Such relative movement between the base 7 and the strip 8, as well as introduction of the base into the recess 13, is facilitated if the strip 8 is made of a material having relatively low coefficient to friction, such as polyvinyl chloride.

It will be understood that although only one rib 5 and one strip 8 are shown in the drawing, such components are repeated across the width of the roof or side wall as many times as necessary to provide the desired number of insulation panels 1 between parallel purlins or girts, as the case may be, with the opposite side edges of each insulation panel engaged by flanges 10 of strips 8.

Iciaim:

1. In combination with a building structure which includes exterior sheathing and an insulation panel positioned adjacent the interior face of the said sheathing, the outer face of the said panel being disposed toward the sheathing and the inner face being disposed toward the building interior, and a rib projecting from the said sheathing inwardly toward the building 4() interior and having a substantially T-shaped base;

an insulation-retaining strip for holding the said insulation panel in place comprising an elongated channel-shaped section extending longitudinally of the strip and having a flange extending therefrom into engagement with the said inner face of the panel,

the said channel-shaped section having an outwardly open re-entrant recess therein defined by opposite side walls, and oppositely disposed shoulders extending into the said recess from the said side walls, the outer face of said shoulders sloping inwardly toward the said recess and forming a funnel-shaped entrance to the recess, which entrance is narrower than the said rib base,

the said rib base being positioned in the said recess with its side edges underlying the said shoulders, the said recess entrance being expandable sufficiently to permit introduction of the said side edges of the rib base into the said recess through the recess entrance.

2. A combination in accordance with claim I, in which op- 0 positely disposed bearing surfaces in the said recess extend parallel to, and inwardly of, the said shoulders, the said side edges of the rib base being positioned between the said bearing surfaces and the said shoulders and having a sliding fit therewith.

Claims

1. In combination with a building structure which includes exterior sheathing and an insulation panel positioned adjacent the interior face of the said sheathing, the outer face of the said panel being disposed toward the sheathing and the inner face being disposed toward the building interior, and a rib projecting from the said sheathing inwardly toward the building interior and having a substantially T-shaped base; an insulation-retaining strip for holding the said insulation panel in place comprising an elongated channel-shaped section extending longitudinally of the strip and having a flange extending therefrom into engagement with the said inner face of the panel, the said channel-shaped section having an outwardly open reentrant recess therein defined by opposite side walls, and oppositely disposed shoulders extending into the said recess from the said side walls, the outer face of said shoulders sloping inwardly toward the said recess and forming a funnelshaped entrance to the recess, which entrance is narrower than the said rib base, the said rib base being positioned in the said recess with its side edges underlying the said shoulders, the said recess entrance being expandable sufficiently to permit introduction of the said side edges of the rib base into the said recess through the recess entrance.

2. A combination in accordance with claim 1, in which oppositely disposed bearing surfaces in the said recess extend parallel to, and inwardly of, the said shoulders, the said side edges of the rib base being positioned between the said bearing surfaces and the said shoulders and having a sliding fit therewith.