US3839836A - Glass fiber reinforced gypsum building components - Google Patents
Glass fiber reinforced gypsum building components Download PDFInfo
- Publication number
- US3839836A US3839836A US00328968A US32896873A US3839836A US 3839836 A US3839836 A US 3839836A US 00328968 A US00328968 A US 00328968A US 32896873 A US32896873 A US 32896873A US 3839836 A US3839836 A US 3839836A
- Authority
- US
- United States
- Prior art keywords
- web
- roof deck
- unit
- longitudinal side
- depending
- 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.)
- Expired - Lifetime
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Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04D—ROOF COVERINGS; SKY-LIGHTS; GUTTERS; ROOF-WORKING TOOLS
- E04D3/00—Roof covering by making use of flat or curved slabs or stiff sheets
- E04D3/35—Roofing slabs or stiff sheets comprising two or more layers, e.g. for insulation
- E04D3/358—Roofing slabs or stiff sheets comprising two or more layers, e.g. for insulation with at least one of the layers being offset with respect to another layer
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B7/00—Roofs; Roof construction with regard to insulation
- E04B7/20—Roofs consisting of self-supporting slabs, e.g. able to be loaded
- E04B7/22—Roofs consisting of self-supporting slabs, e.g. able to be loaded the slabs having insulating properties, e.g. laminated with layers of insulating material
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04D—ROOF COVERINGS; SKY-LIGHTS; GUTTERS; ROOF-WORKING TOOLS
- E04D3/00—Roof covering by making use of flat or curved slabs or stiff sheets
- E04D3/35—Roofing slabs or stiff sheets comprising two or more layers, e.g. for insulation
- E04D3/351—Roofing slabs or stiff sheets comprising two or more layers, e.g. for insulation at least one of the layers being composed of insulating material, e.g. fibre or foam material
- E04D3/352—Roofing slabs or stiff sheets comprising two or more layers, e.g. for insulation at least one of the layers being composed of insulating material, e.g. fibre or foam material at least one insulating layer being located between non-insulating layers, e.g. double skin slabs or sheets
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04D—ROOF COVERINGS; SKY-LIGHTS; GUTTERS; ROOF-WORKING TOOLS
- E04D3/00—Roof covering by making use of flat or curved slabs or stiff sheets
- E04D3/36—Connecting; Fastening
- E04D3/361—Connecting; Fastening by specially-profiled marginal portions of the slabs or sheets
- E04D2003/3617—Connecting; Fastening by specially-profiled marginal portions of the slabs or sheets with locking or snapping edges located in the thickness of the slab or sheet
Definitions
- GLASS FIBER REINFORCED GYPSUM BUILDING COMPONENTS BACKGROUND OF THE INVENTION 1.
- This invention is concerned with building components fabricated from glass-fiber reinforced gypsum (GRG) and more especially to roof deck constructions utilizing such components, and has for its object to provide a fire resistant roof deck having good span capabilities, having an aesthetically attractive, self-colored undersurface which can be employed as a ceiling for the subjacent space, and which has inherent installation properties which provide economy in construction.
- GSG glass-fiber reinforced gypsum
- GRG compositions possess good flexural strength, impact resistance, tensile strength and densities.
- British Pat. No. 1,204,541 proposes the use of GRG for making plaster boards, moldings or extrusions for construction use in walls, floors, ceilings or roofs. Such articles have good fireproof characteristics and high strength, particularly flexural strength and impact strength.
- the offset tongue has a thickness which is less than the throat dimension of the groove whereby a tongue of one such roof deck unit may be engaged in the groove of a contiguous roof deck unit.
- the top surface of the web is coated with an insulating layer of foamed plastic material, such as foamed polyisocyanurate or foamed fire retardant polyurethane.
- foamed plastic material such as foamed polyisocyanurate or foamed fire retardant polyurethane.
- a water resistant finishing sheet is bonded to the top of the insulating layer.
- a roof deck can be assembled by combining the described roof deck units side by side upon generally parallel roof purlins or rafters.
- the tongues of each unit are engaged in the grooves of the contiguous units and fasteners extend through the base flanges of each roof deck unit into the supporting purlins or rafters.
- the roof deck can be completed on the building site by applying to the weather resistant finishing sheet one or more layers of a water resistant material such as sanded bituminized felt sheets.
- a novel method is provided for fabricating the roof deck units in continuous strips, two at a time, with the offset tongues of each unit being connected.
- the double units are coated with the insulating layer and the finishing layer is applied. Thereafter the finishing layer, insulating layer and selected portions of excess GRG are removed to provide the requisite groove suitably dimensioned to accommodate irregularities in the thickness of the insulating layer.
- FIG. 1 is an end elevation of a roof deck unit according to the invention
- FIG. 2 is a fragmentary sectional elevation of contiguous portions of two engaged roof deck units
- FIG. 3 is a plan view of a series of units laid upon roof purlins to form a roof deck
- FIG. 4 is an end elevation of two roof deck units illustrating a novel method of manufacturing roof deck units.
- FIG. 1 shows a roof deck unit 10 having a flat rectangular web 11 having a first longitudinal side He and a second longitudinal side 11a; having a depending offset tongue 15 extending along a first longitudinal side llc of the web 11; having 21 depending bight portion 12b inset from the second longitudinal side 11a of the web 11; having a projecting shoulder 12a extending from the bight 12b generally parallel with the web 11 and extending beyond the second longitudinal side 11a of the web 11; a side wall 12 depends from the outboard edge of the projecting shoulder 12a; 21 base flange 13 extends from the base of the side wall 12; and a groove 14 is formed by the second edge 11a of the web 1 l, the bight 12b and part of the projecting shoulder 12a.
- the offset tongue 15 has a thickness which is less than the throat dimension (that is the distance between the undersurface of the web 11 and the upper surface of the projecting shoulder 12a) of the groove 14 whereby, as shown in FIG. 2, a tongue 15 of one roof deck unit may be engaged in the groove 14 of a contiguous roof deck unit 10b.
- the uppersurface of the web 11 has bonded thereto a layer 16 of a foamed plastics material, for example, foamed polyisocyanurate or foamed fire retardant polyurethane.
- foamed plastics material is applied by direct in situ foaming and preferably the insulating layer 16 has a thickness from 5 to 50 millimeters.
- the top surface of the insulating foam layer 16 is covered with a layer 17 of water resistant sheet such as sanded bituminized roofing felt.
- the GRG may have a thickness from about 5 to 30 millimeters. It is not necessary that the web 11 have the same thickness as the bight 12b or the projecting shoulder 12a or the side wall 12 of the base flange 13 or the tongue 15.
- the individual roof deck units have a covering width corresponding with the width of the web 11. That width may be about 30 to 120 centimeters.
- the overall height of the roof deck unit from the bottom of the base flange 13 to the top of the layer 17 may be from about 3 centimeters to 30 centimeters.
- the lengths of the roof deck units are from about 1 meter to about meters. Preferably the length is equal to twice the distance between individual purlins, e.g., a length of 6 to 8 meters is provided for purlin spacing of 3 to 4 meters. The length is selected as required by the building needs and also is selected to permit ease of installation of the units.
- FIG. 3 A typical roof deck assembly is shown in FIG. 3 wherein the roof deck units 10 are laid in side by side and end to end on generally parallel roof purlins 20. Structural fasteners such as screws, rivets are driven through the base flanges 13 into the purlins 20 as shown in FIG. 2.
- the roof deck units 10 are laid in a staggered end to end disposition as illustrated in FIG. 3. It is also preferable that the roof deck units 10 have a length equal to twice the distance between the individual purlins 20, for example, a preferred length is 6 to 8 meters where the purlins 20 are spaced apart by 3 to 4 meters.
- the second longitudinal edge 110 preferably is provided with a chamfered edge on the underside of the web to facilitate entry of the offset tongue from an adjacent roof deck unit.
- the chamfer 11b also permits the use of a suitable sealing material 24 to reduce the permeability of the resulting roof deck structure.
- roof deck units 10 are assembled such that the GRG is protected from moisture.
- the roof deck is completed by applying several layers 25, 26 of a water resistant roofing material such as a sanded bituminized roofing felt. It will be observed from FIG. 2 that the upper surfaces of the covering layers 17 of the roof deck units 10a and 10b are coplanar.
- the resulting roof deck assembly has a good fire rating because of its inherent fire retardant construction, and also has good acoustical and thermal insulation properties because of the insulating layer 16.
- FIG. 4 A preferred method of manufacturing the roof deck units is illustrated in FIG. 4 where a duplex unit X is initially produced having the profile shown in FIG. 4. This duplex unit is covered with a complete insulating layer 16 and a complete finishing sheet 17.
- the duplex unit X includes a roof deck unit 10c and a roof deck unit 10d which are connected along the first longitudinal edges thereof. As shown in FIG. 4, separate portions 28 and 29 are cross-hatched to indicate components which are initially present during the formation of the duplex unit X and which are subsequently removed by milling or planing to produce two of the roof deck units 10c, 10d.
- the undersurface 27 of the two tongues is precisely machined to establish a predetermined thickness between that surface 27 and the top surface of the finishing sheet 17.
- the same dimension is provided between the upper surface 30 of each shoulder 12a and the top surface of the finishing sheet 17.
- the duplex unit X is out along the central longitudinal plane Y-Y to produce two of the roof deck units 10c and 10d.
- the finishing sheets 17 will have their upper surfaces coplanar as a result of the described process for forming the units. Hence despite some variation in the thickness of the insulating layers 16, the variations will not create visually apparent irregularities in the exposed surface of the assembled roof deck units.
- a roof deck unit fabricated from glass fiber reinforced gypsum comprising a flat rectangular web, a depending offset flat tongue extending outwardly beyond a first longitudinal side of the web and generally parallel with the web; a depending bight portion inset from a second longitudinal side of the web; a projecting flat shoulder extending from the bight generally parallel with the web and extending outwardly beyond and en tirely spaced below the second longitudinal side of the web; a side wall depending from an outboard edge of the projecting flat shoulder; a flange extending from the base of the side wall; and a groove formed by the second longitudinal side of the web, the bight, and part of the projecting flat shoulder.
- a roof deck unit fabricated from glass fiber reinforced gypsum comprising a flat rectangular web; a depending offset tongue extending along a first longitudinal side of the web; a depending bight portion inset from the second longitudinal side of the web; a projecting shoulder extending from the bight generally parallel with the web and extending outwardly beyond the second longitudinal side of the web; a side wall depending from the outboard edge of the projecting shoulder; a flange extending from the base of the side wall; a groove formed by the second longitudinal side of the web, the bight, and a part of the projecting shoulder; an insulating layer of foamed plastic material applied to the top of said web; and a water resistant finishing sheet applied to the top of said insulating layer.
- each roof deck unit includes a chamfered surface provided on the under-surface of the said second longitudinal side of the said web, said chamfered surface cooperating with the first longitudinal side of the said web and an upper surface of the tongue of an adjoining unit to provide a lengthwise pocket, and a sealant material provided in said lengthwise pocket.
Abstract
Description
Claims (7)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US463306A US3878009A (en) | 1972-02-04 | 1974-05-06 | Glass fiber reinforced gypsum building components and method |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB539672A GB1382875A (en) | 1972-02-04 | 1972-02-04 | Building components and structures utilizing such components |
Publications (1)
Publication Number | Publication Date |
---|---|
US3839836A true US3839836A (en) | 1974-10-08 |
Family
ID=9795368
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US00328968A Expired - Lifetime US3839836A (en) | 1972-02-04 | 1973-02-02 | Glass fiber reinforced gypsum building components |
Country Status (14)
Country | Link |
---|---|
US (1) | US3839836A (en) |
JP (1) | JPS4884429A (en) |
AU (1) | AU466781B2 (en) |
BE (1) | BE794521A (en) |
CA (1) | CA977117A (en) |
DE (1) | DE2303177A1 (en) |
ES (2) | ES410930A1 (en) |
FR (1) | FR2169943B1 (en) |
GB (1) | GB1382875A (en) |
IE (1) | IE37254B1 (en) |
IT (1) | IT977098B (en) |
NL (1) | NL7301320A (en) |
SE (1) | SE395030B (en) |
ZA (1) | ZA7335B (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20080241396A1 (en) * | 2003-02-21 | 2008-10-02 | Reid Dresser | Article having a stained molded three-dimensional wood grain |
US8070895B2 (en) | 2007-02-12 | 2011-12-06 | United States Gypsum Company | Water resistant cementitious article and method for preparing same |
US8329308B2 (en) | 2009-03-31 | 2012-12-11 | United States Gypsum Company | Cementitious article and method for preparing the same |
US20140007540A1 (en) * | 2006-06-26 | 2014-01-09 | Casata Technologies Inc. | Architectural Pavements in Elevated Exterior Deck Applications |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2120706B (en) * | 1982-05-26 | 1985-12-18 | Itw Ltd | Overroofing of buildings |
FR2548714B1 (en) * | 1983-07-07 | 1987-09-04 | Bertin Jean Claude | ELEMENT OR PANEL FOR ROOF COVERING OR CLADDING, PARTICULARLY FOR HOUSING |
GB8918595D0 (en) * | 1989-08-15 | 1989-09-27 | Presco Int | Portable buildings |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1913342A (en) * | 1930-07-03 | 1933-06-06 | Truscon Steel Co | Metal structure |
US3043407A (en) * | 1958-04-28 | 1962-07-10 | Marryatt Lane & Co Inc | Grids |
US3197934A (en) * | 1962-04-10 | 1965-08-03 | Clark Equipment Co | Joint for metal floor sections and the like |
US3380216A (en) * | 1965-10-21 | 1968-04-30 | Pike Trailer Co | Trailer enclosure construction |
GB1204541A (en) * | 1967-02-01 | 1970-09-09 | Nat Res Dev | Method of making fibre reinforced plaster articles |
US3555756A (en) * | 1968-04-12 | 1971-01-19 | Robertson Co H H | Insulating building panel unit |
US3595726A (en) * | 1969-08-21 | 1971-07-27 | Arthur H Middleton | Roof light panel |
-
0
- BE BE794521D patent/BE794521A/en unknown
-
1972
- 1972-02-04 GB GB539672A patent/GB1382875A/en not_active Expired
-
1973
- 1973-01-03 ZA ZA730035A patent/ZA7335B/en unknown
- 1973-01-16 CA CA161,337A patent/CA977117A/en not_active Expired
- 1973-01-18 AU AU51219/73A patent/AU466781B2/en not_active Expired
- 1973-01-22 FR FR7302100A patent/FR2169943B1/fr not_active Expired
- 1973-01-23 DE DE2303177A patent/DE2303177A1/en active Pending
- 1973-01-24 ES ES410930A patent/ES410930A1/en not_active Expired
- 1973-01-29 IT IT47943/73A patent/IT977098B/en active
- 1973-01-30 IE IE146/73A patent/IE37254B1/en unknown
- 1973-01-30 NL NL7301320A patent/NL7301320A/xx unknown
- 1973-02-02 US US00328968A patent/US3839836A/en not_active Expired - Lifetime
- 1973-02-02 SE SE7301462A patent/SE395030B/en unknown
- 1973-02-05 JP JP48014568A patent/JPS4884429A/ja active Pending
-
1975
- 1975-06-13 ES ES1975213142U patent/ES213142Y/en not_active Expired
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1913342A (en) * | 1930-07-03 | 1933-06-06 | Truscon Steel Co | Metal structure |
US3043407A (en) * | 1958-04-28 | 1962-07-10 | Marryatt Lane & Co Inc | Grids |
US3197934A (en) * | 1962-04-10 | 1965-08-03 | Clark Equipment Co | Joint for metal floor sections and the like |
US3380216A (en) * | 1965-10-21 | 1968-04-30 | Pike Trailer Co | Trailer enclosure construction |
GB1204541A (en) * | 1967-02-01 | 1970-09-09 | Nat Res Dev | Method of making fibre reinforced plaster articles |
US3555756A (en) * | 1968-04-12 | 1971-01-19 | Robertson Co H H | Insulating building panel unit |
US3595726A (en) * | 1969-08-21 | 1971-07-27 | Arthur H Middleton | Roof light panel |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20080241396A1 (en) * | 2003-02-21 | 2008-10-02 | Reid Dresser | Article having a stained molded three-dimensional wood grain |
US20140007540A1 (en) * | 2006-06-26 | 2014-01-09 | Casata Technologies Inc. | Architectural Pavements in Elevated Exterior Deck Applications |
US9725904B2 (en) | 2006-06-26 | 2017-08-08 | Casata Technologies Inc. | Architectural pavements in elevated exterior deck applications |
US8070895B2 (en) | 2007-02-12 | 2011-12-06 | United States Gypsum Company | Water resistant cementitious article and method for preparing same |
US8568544B2 (en) | 2007-02-12 | 2013-10-29 | United States Gypsum Company | Water resistant cementitious article and method for preparing same |
US8329308B2 (en) | 2009-03-31 | 2012-12-11 | United States Gypsum Company | Cementitious article and method for preparing the same |
Also Published As
Publication number | Publication date |
---|---|
JPS4884429A (en) | 1973-11-09 |
ES213142Y (en) | 1976-11-01 |
NL7301320A (en) | 1973-08-07 |
IE37254B1 (en) | 1977-06-08 |
AU5121973A (en) | 1974-07-18 |
DE2303177A1 (en) | 1973-08-16 |
IE37254L (en) | 1973-08-04 |
IT977098B (en) | 1974-09-10 |
SE395030B (en) | 1977-07-25 |
GB1382875A (en) | 1975-02-05 |
BE794521A (en) | 1973-05-16 |
ES213142U (en) | 1976-06-16 |
AU466781B2 (en) | 1975-11-06 |
FR2169943A1 (en) | 1973-09-14 |
ES410930A1 (en) | 1976-05-16 |
ZA7335B (en) | 1974-02-27 |
CA977117A (en) | 1975-11-04 |
FR2169943B1 (en) | 1976-11-05 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
AS | Assignment |
Owner name: EQUITABLE BANK, NATIONAL ASSOCIATION, AS AGENT Free format text: SECURITY INTEREST;ASSIGNOR:H.H. ROBERTSON COMPANY;REEL/FRAME:005261/0382 Effective date: 19891013 |
|
AS | Assignment |
Owner name: FIRST CITY SECURITIES INC., 499 PARK AVE., NEW YOR Free format text: SECURITY INTEREST;ASSIGNOR:H. H. ROBERTSON COMPANY;REEL/FRAME:005261/0098 Effective date: 19891013 |
|
AS | Assignment |
Owner name: WELLS FARGO BANK, N.A., A NATIONAL BANKING ASSOCIA Free format text: SECURITY INTEREST;ASSIGNOR:ROBERTSON-CECO CORPORATION, A DE CORP.;REEL/FRAME:005498/0434 Effective date: 19901108 Owner name: H. H. ROBERTSON, A CORP. OF DELAWARE, PENNSYLVANIA Free format text: RELEASED BY SECURED PARTY;ASSIGNOR:FIRST CITY SECURITIES INC.;REEL/FRAME:005518/0137 Effective date: 19901106 Owner name: H. H. ROBERTSON, A CORP. OF DELAWARE, PENNSYLVANIA Free format text: RELEASED BY SECURED PARTY;ASSIGNOR:MARYLAND NATIONAL BANK;REEL/FRAME:005518/0120 Effective date: 19901107 Owner name: WELLS FARGO BANK, N.A., A NATIONAL BANKING ASSOCIA Free format text: SECURITY INTEREST;ASSIGNOR:ROBERTSON CECO CORPORATION, A DE CORP.;REEL/FRAME:005617/0421 Effective date: 19901108 |
|
AS | Assignment |
Owner name: ROBERTSON-CECO CORPORATION, A DE CORP. Free format text: ASSIGNMENT OF ASSIGNORS INTEREST. EFFECTIVE NOVEMBER 8, 1990;ASSIGNOR:H.H. ROBERTSON COMPANY;REEL/FRAME:005587/0020 Effective date: 19901105 |