US3830687A - Flame retardant and fire resistant roofing material - Google Patents

Flame retardant and fire resistant roofing material Download PDF

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US3830687A
US3830687A US00277896A US27789672A US3830687A US 3830687 A US3830687 A US 3830687A US 00277896 A US00277896 A US 00277896A US 27789672 A US27789672 A US 27789672A US 3830687 A US3830687 A US 3830687A
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material
water
barrier member
heat barrier
fiberglass
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US00277896A
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C Re
J Conrad
J Tasso
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Dyna-Shield Inc
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Dyna-Shield Inc
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B13/00Layered products comprising a a layer of water-setting substance, e.g. concrete, plaster, asbestos cement, or like builders' material
    • B32B13/14Layered products comprising a a layer of water-setting substance, e.g. concrete, plaster, asbestos cement, or like builders' material next to a fibrous or filamentary layer
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B28WORKING CEMENT, CLAY, OR STONE
    • B28BSHAPING CLAY OR OTHER CERAMIC COMPOSITIONS, SLAG, OR MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28B11/00Apparatus or processes for treating or working the shaped or preshaped articles
    • B28B11/04Apparatus or processes for treating or working the shaped or preshaped articles for coating or applying engobing layers
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C70/00Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
    • B29C70/02Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising combinations of reinforcements, e.g. non-specified reinforcements, fibrous reinforcing inserts and fillers, e.g. particulate fillers, incorporated in matrix material, forming one or more layers and with or without non-reinforced or non-filled layers
    • B29C70/021Combinations of fibrous reinforcement and non-fibrous material
    • B29C70/025Combinations of fibrous reinforcement and non-fibrous material with particular filler
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C70/00Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
    • B29C70/68Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts by incorporating or moulding on preformed parts, e.g. inserts or layers, e.g. foam blocks
    • B29C70/86Incorporated in coherent impregnated reinforcing layers, e.g. by winding
    • B29C70/865Incorporated in coherent impregnated reinforcing layers, e.g. by winding completely encapsulated
    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04BGENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/62Insulation or other protection; Elements or use of specified material therefor
    • E04B1/92Protection against other undesired influences or dangers
    • E04B1/94Protection against other undesired influences or dangers against fire
    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04DROOF COVERINGS; SKY-LIGHTS; GUTTERS; ROOF-WORKING TOOLS
    • E04D1/00Roof covering by making use of tiles, slates, shingles, or other small roofing elements
    • E04D1/26Strip-shaped roofing elements appearing as a row of shingles
    • E04D1/265Strip-shaped roofing elements appearing as a row of shingles the roofing elements being rigid, e.g. made of metal, wood or concrete
    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04DROOF COVERINGS; SKY-LIGHTS; GUTTERS; ROOF-WORKING TOOLS
    • E04D3/00Roof covering by making use of flat or curved slabs or stiff sheets
    • E04D3/35Roofing slabs or stiff sheets comprising two or more layers, e.g. for insulation
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29KINDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2067/00Use of polyesters or derivatives thereof, as moulding material
    • B29K2067/06Unsaturated polyesters
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29KINDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2309/00Use of inorganic materials not provided for in groups B29K2303/00 - B29K2307/00, as reinforcement
    • B29K2309/08Glass
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29KINDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2309/00Use of inorganic materials not provided for in groups B29K2303/00 - B29K2307/00, as reinforcement
    • B29K2309/12Asbestos
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29KINDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2709/00Use of inorganic materials not provided for in groups B29K2703/00 - B29K2707/00, for preformed parts, e.g. for inserts
    • B29K2709/02Ceramics
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29KINDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2709/00Use of inorganic materials not provided for in groups B29K2703/00 - B29K2707/00, for preformed parts, e.g. for inserts
    • B29K2709/08Glass
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2262/00Composition of fibres which form a fibrous or filamentary layer or are present as additives
    • B32B2262/10Inorganic fibres
    • B32B2262/101Glass fibres
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2419/00Buildings or parts thereof
    • B32B2419/06Roofs, roof membranes
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10STECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S428/00Stock material or miscellaneous articles
    • Y10S428/92Fire or heat protection feature
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00Stock material or miscellaneous articles
    • Y10T428/23Sheet including cover or casing
    • Y10T428/232Encased layer derived from inorganic settable ingredient

Abstract

An improved flame retardant and fire resistant roofing product is provided which simulates wooden shake shingles, tiles, planking, panels, or the like. The roofing product to be described can be stained to a wood finish, and it can be nailed, sawn, or otherwise treated in the same manner as wooden shakes. The product provides a wood waterproof seal, and it is unaffected by wind, rain or snow. The roofing product of the invention comprises fiberglass and water-extended polyester mixed with a heat-proofing material, such as powdered or fibrous asbestos, or powdered glass; and it may be intermixed with other materials, such as vermiculite (processed mica), ceramic glass modules, or the like; or it may include a core composed, for example, of Hydrocol or other gypsum material with an enclosing web of the fiberglass and water-extended polyester mixed with the heatproofing material.

Description

United States Patent [191 Re et al.

[ Aug. 20, 1974 FLAME RETARDANT AND FIRE RESISTANT ROOFING MATERIAL [75] Inventors: Carlo Re, Glendale; Jack R.

Conrad, Costa Mesa; Joseph A. Tasso, Santa Ana, all of Calif.

[73] Assignee: Dyna-Shield, Inc., Santa Ana, Calif.

[22] Filed: Aug. 4, 1972 [211 Appl. No.: 277,896

[52] U.S. Cl 161/168, 52/309, 161/116,

161/169, 161/161, 161/403, 161/151, 52/555 [51] Int. Cl B321) 5/16, B32b 21/02 [58] Field of Search 161/168, 162, 169, 170,

l6l/43,194, 195, 205,151,164, DIG. 4; 52/554, 555, 309

3,692,682 9/1972 Re et al. 161/403 Primary Examiner--George F. Lesmes Assistant ExaminerWi1liam R. Dixon, Jr. Attorney, Agent, or Firm-Jessup & Beecher [57] ABSTRACT An improved flame retardant and fire resistant roofing product is provided which simulates wooden shake shingles, tiles, planking, panels, or the like. The roofing product to be described can be stained to a wood finish, and it can be nailed, sawn, or otherwise treated in the same manner as wooden shakes. The product provides a wood waterproof seal, and it is unaffected by wind, rain or snow. The roofing product of the invention comprises fiberglass and water-extended polyester mixed with a heat-proofing material, such as powdered or fibrous asbestos, or powdered glass; and it may be intermixed with other materials, such as vermiculite (processed mica), ceramic glass modules, or the like; or it may include a core composed, for example, of Hydrocol or other gypsum material with an enclosing web of the fiberglass and water-extended polyester mixed with the heat-proofing material.

8 Claims, 3 Drawing Figures F/Zer 6/00 lz/e MIA fare FLAME RETARDANT AND FIRE RESISTANT ROOFING MATERIAL RELATED PATENT APPLICATION Serial No. 886,075 filed Dec. 18, 1969 in the names of Carlo Re, Earl O. Conrad and Jack R. Conrad, and entitled Heat Barrier Material and Process which issued Sept. 19, 1972 as U.S. Pat. No. 3,692,682.

BACKGROUND OF THE INVENTION Shake roofs are extremely popular in the building trade, and especially for homes, principally because of their attractive and rich appearance. However, such roofs normally constitute a fire hazard. In the past, attempts to treat the individual wooden shake shingles so as to render them fire resistant have not been entirely successful; principally because of the expense involved, and because of the tendency for the treated shingles to dry out in time so as to nullify their fire resistant characteristics.

The roofing product of the present invention is in the form of synthetic shake shingles which, as mentioned above, closely simulate the wooden shakes, and which may be sawn, nailed, or otherwise handled, in much the same manner as the wooden shakes. However, the product of the present invention is flame retardant and fire resistant, and it retains such fireproof characteristics indefinitely.

Moreover, the product of the present invention is advantageous in that it is relatively inexpensive, and can be mounted on the roof to provide a waterproof finish without expensive preparation or additional structures.

The product of the present invention, as mentioned above, is formed of water-extended polyester mixed with a heat-proofing material, and it may include a core composed of gypsum, plaster, Hydrocal, or a mixture of Perlite and Hydrocal, or other suitable material. Such a core is advantageous in that it is relatively inexpensive, and also since it provides an appropriate heat barrier because of its heat resistant characteristics. The core is enclosed by a web which, as mentioned above, is formed of fiberglass intermixed with a heat barrier material composed of water-extended polyester and particles of appropriate heatproofing material, as described in the aforesaid copending application. As mentioned above, the heat barrier material is composed of a mixture of water-extended polyester (WEP) and particles of heatproofing material, such as powdered or fibrous asbestos, or powdered glass.

Water-extended polyester resins which are suitable for use in the heat barrier material are described, for example, in U.S. Pat No. 3,256,219. The resin plastic material described in the patent has a porous structure and a sponge-like consistency, and a liquid, such as water, is trapped in the pores of the material. In addition, the material of the web has a high strength.

As described in one specific example in the aforesaid patent, the water-extended polyester resin may be formed by adding 2g of Benzoylperoxide and 100 cc of water to a mixture consisting of 65g of an unsaturated polyester of an acid prepared from maleic acid, Phthalic acid and propylene gycol of a molar ratio of 21113.3 as one constituent, and 35g styrene as another constituent.

The resulting mixture isstirred at a temperature of 10 C, for example, until a water-in-oil emulsion is formed. The emulsion is mixed with 0.18g of dimethylp-toluidine and is subsequently polymerized and hardened by heating at 30 C for ten minutes. The water in the pores of the resulting resin material can subsequently be evaporated by heat at a temperature between C and C. Other examples of waterextended polyester resin material suitable for present purposes are also set out specifically in the patent.

A specific example of the consistency of the material which, in accordance with the present invention, is mixed with the fiberglass to constitute the synthetic shake, is as follows:

a. One part (by weight) water-extended polyester resin such as described in the patent. This material is availabe commerically and may be purchased, for example, from the Ashland Chemical Company of Los Angeles, California. The particular material is marketed by that company and is designated by them as WEP- 27.

b. 1/100th of a part (by weight) cobalt.

c. l/200th of a part (by weight) dimethylanaline (DMA).

d. 1 part (by weight) water.

e. 2/ 100,000 of a part (by weight) of an inhibitor such as a mixture of methyl celosolve (80 percent) and hydroquinone (20 percent).

f. l/l6th or a part (by weight) powdered or fibrous asbestos or powdered glass. g.

l/200th or a part (by weight) of a catalyst such as methyl ethyl ketone (MEK) peroxide.

The polyester resin, cobalt and the DMA and stabilizer are mixed together as one group which is desingated the carrier, as explained in the copending ap plicaton, and the asbestos (or powdered glass), water, inhibitor and catalyst are mixed as another group which is designated as the heat retarder. The two components form the material which is intermixed with the fiberglass to form the synthetic shake of the invention. The proportions of the various ingredients, as listed above, are not critical and may be varied considerably to meet specific requirements. I

For example, the various ingredients may be varied to meet specific requirements of handling, heat resistivity, rigidity, and in the time. That is, the catalyst and inhibitor percentages inthe total mix affect gel time, and are coordinated with the technical requirements of the process, and with the production requirements. For example, if a fast gel time is required, more catalyst and less inhibitor is used. However, if a slower gel time is required for any reason, more inhibitor and less catalyst is used.

If a lower heat transfer rate or coefficient is required, the quanitity of asbestos, or other retardants, is increased. Another available variable for specific needs is the availability of various grades of water-extended polyester resin, as described in the aforesaid patent, which can be selected to provide anything from a very rigid material to a resilient material.

BRIEF DESCRIPTION OF THE DRAWING FIG. 1 is a schematic representation of a press and mold which may be used in the fabrication of shakes in accordance with the invention; I

FIG. 2 is a perspective representation of a shake constructed in accordance with the invention; and

FIG. 3 is a section taken along the lines 3-3 of FIG. 2.

DETAILED DESCRIPTION OF THE ILLUSTRATED EMBODIMENT As shown in FIG. 1, a mold is provided which has a bottom surface configured to correspond to the surface shape of the simulated shake. The mold, for example, may be formed of metal, epoxy, polyurethane, or other appropriate material, and the configuration of its lower surface may be formed by known techniques, and by the use, for example, of actual wooden shakes.

In the construction of the synthetic shake of one embodiment of the present invention, the plaster is first poured into the mold l0 and allowed to set, so as to form a core. The core may be formed, as mentioned above, of an appropriate gypsum product such as plaster, cement, Hydrocal, Perlite, or a mixture of the aforesaid materials. The purpose of the core is to provide bulk and thickness to the synthetic shake of the invention at low cost, and to seal in moisture. The plaster core also provides heat protection for the material.

After the plaster core has set, it is removed from the mold, and a fiberglass is sprayed or wrapped around it to form a matte. A quantity of the water-extended polyester (WEP) and the fire retardant material is then placed in the mold l0, and the fiberglass-wrapped core is placed in the mold. More of the mixture is then placed around the top of the wrapped core, so that the entire core is surrounded by fiberglass saturated with the (WEP) mixture. An appropriate press 12 is then moved into place firmly to press the composite body against the bottom of the mold, and the polyester mate rial is allowed to polymerize. The resulting product 14 is then removed from the mold.

It will be observed that the product simulates a group of shakes, and is composed of a core 16, as shown in FIG. 3, composed of plaster, and a web 18 which completely surrounds the core. The resulting product may be stained further to simulate the wooden shake, and it may be sawn, nailed, or otherwise handled in the same manner as the wooden shake, in order to mount it on the roof. The synthetic shake 14 has an advantage that it may be directly nailed onto the roof without expensive sub-bases and the like.

The resulting product 14 also has an advantage in that it has no tendency to warp, and it provides an excellent roofing material. The core of the synthetic shake of the invention is fire resistant, and the surrounding web is not only fire resistant, but also flame retardant, so that it protects the core from flames in the event of fire, so that the complete structure provides an excellent heat barrier.

In another embodiment, a mixture of fiberglass and the (WEP) and the fire retardant material is intermixed with an appropriate material, such as vermiculite and- /or ceramic glass modules, is placed in the aforesaid mold and the shake is formed by a single molding step. The vermiculite and/or ceramic glass modules migrate towards the center of the shake and replace the core of the previous embodiment.

While particular embodiments of the invention have been shown and described, modifications may be made. It is intended to cover all modifications in the following claims which come within the spirit and scope of the invention.

What is claimed is:

1. A fire resistant heat barrier member formed of fiberglass intermixed with a polyester resin and particles of a fireproofing material, and including a core of gyp sum material.

2. The heat barrier member defined in claim 1, in which said fireproofing material is powdered asbestos.

3. The heat barrier member defined in claim 1, in which said fireproofing material is fibrous asbestos.

4. The heat barrier member defined in claim 1, in which said fireproofing material is powdered glass.

5. The heat barrier member defined in claim 1, in which said polyester resin is of a water-extended type.

6. The heat barrier member defined in claim 1, in which said barrier member is formed of fiberglass, and a water-extenddd polyester resin intermixed particles of asbestos.

7. The heat barrier member defined in claim I, having a configuration simulating wooden shake shingles.

8. The heat barrier member defined in claim 1, and which includes vermiculite and ceramic glass modules intermixed with the ingredients.

Claims (7)

  1. 2. The heat barrier member defined in claim 1, in which said fireproofing material is powdered asbestos.
  2. 3. The heat barrier member defined in claim 1, in which said fireproofing material is fibrous asbestos.
  3. 4. The heat barrier member defined in claim 1, in which said fireproofing material is powdered glass.
  4. 5. The heat barrier member defined in claim 1, in which said polyester resin is of a water-extended type.
  5. 6. The heat barrier member defined in claim 1, in which said barrier member is formed of fiberglass, and a water-extenddd polyester resin intermixed particles of asbestos.
  6. 7. The heat barrier member defined in claim 1, having a configuration simulating wooden shake shingles.
  7. 8. The heat barrier member defined in claim 1, and which includes vermiculite and ceramic glass modules intermixed with the ingredients.
US00277896A 1972-08-04 1972-08-04 Flame retardant and fire resistant roofing material Expired - Lifetime US3830687A (en)

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US3969567A (en) * 1973-03-13 1976-07-13 Tac Construction Materials Ltd. Improvements in and relating to board products
US4201833A (en) * 1973-03-16 1980-05-06 Isovolta Osterreichische Isolierstoffwerke Aktiengesellschaft Building material elements, particularly building boards, and a process for their production
US4210070A (en) * 1978-03-06 1980-07-01 Dayus Barry R Ceiling fixture with thermal protection
US4242406A (en) * 1979-04-30 1980-12-30 Ppg Industries, Inc. Fiber reinforced composite structural laminate composed of two layers tied to one another by embedded fibers bridging both layers
US4308700A (en) * 1979-10-10 1982-01-05 Romig Jr Byron A Fiberglass structural member of layer construction and method of making same
US4498267A (en) * 1982-11-29 1985-02-12 Ermon Beck Simulated clay tile roof construction and method of making same
US4647486A (en) * 1983-12-28 1987-03-03 United States Gypsum Company Fire resistant gypsum board . . . anhydrite
US4726881A (en) * 1983-02-28 1988-02-23 Masonite Corporation Method of making wet process panels of composite wood material with semi-matching contoured pressure plates
US4756945A (en) * 1985-01-18 1988-07-12 Backer Rod Manufacturing And Supply Company Heat expandable fireproof and flame retardant construction product
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US5319900A (en) * 1984-02-27 1994-06-14 Georgia-Pacific Corporation Finishing and roof deck systems containing fibrous mat-faced gypsum boards
US5342680A (en) * 1988-01-06 1994-08-30 Georgia-Pacific Corporation Glass mat with reinforcing binder
WO1994025237A2 (en) * 1993-04-29 1994-11-10 Redland Technologies Limited Reinforced concrete tiles and methods of making the same
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US5492562A (en) * 1995-02-07 1996-02-20 Pettinato; Dana M. Low freezing point roofing shingle containing a chloride salt
US5615523A (en) * 1995-04-24 1997-04-01 Owens-Corning Fiberglas Technology, Inc. Roof having resinous shingles
US5644880A (en) * 1984-02-27 1997-07-08 Georgia-Pacific Corporation Gypsum board and systems containing same
US5711126A (en) * 1996-05-13 1998-01-27 Owens-Corning Fiberglass Technology, Inc. Resinous angled shingles for roof ridge lines
US6021611A (en) * 1995-04-24 2000-02-08 Wells; James R. Shingle having ribs and a cavity on its underside
US6276107B1 (en) * 1998-05-07 2001-08-21 Pacific International Tool & Shear, Ltd. Unitary modular shake-siding panels, and methods for making and using such shake-siding panels
US6338230B1 (en) 1999-10-25 2002-01-15 Davey John F Simulated shake shingle
US6776150B2 (en) 1998-03-06 2004-08-17 Shear Technologies, Inc. Method and apparatus for cutting fiber-cement material along an arcuate path
BE1015681A3 (en) * 2003-09-11 2005-07-05 Dumoulin Marc Gaston Adrien Sandwich panel and method for manufacturing thereof.
US20060010800A1 (en) * 2002-11-05 2006-01-19 Bezubic William P Jr Cementitious exterior sheathing product with rigid support member
US20060068188A1 (en) * 2004-09-30 2006-03-30 Morse Rick J Foam backed fiber cement
US7049251B2 (en) 2003-01-21 2006-05-23 Saint-Gobain Technical Fabrics Canada Ltd Facing material with controlled porosity for construction boards
US7155866B2 (en) 2002-11-05 2007-01-02 Certainteed Corporation Cementitious exterior sheathing product having improved interlaminar bond strength
US20070137131A1 (en) * 2003-06-30 2007-06-21 Nagarajan Venkata S Lofted mat for shingles
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