US3365322A - Intumescent, coated roofing granules and asphalt composition felt-base roofing containing the same - Google Patents
Intumescent, coated roofing granules and asphalt composition felt-base roofing containing the same Download PDFInfo
- Publication number
- US3365322A US3365322A US363171A US36317164A US3365322A US 3365322 A US3365322 A US 3365322A US 363171 A US363171 A US 363171A US 36317164 A US36317164 A US 36317164A US 3365322 A US3365322 A US 3365322A
- Authority
- US
- United States
- Prior art keywords
- granules
- roofing
- weight
- asphalt
- coated
- 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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Classifications
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04D—ROOF COVERINGS; SKY-LIGHTS; GUTTERS; ROOF-WORKING TOOLS
- E04D5/00—Roof covering by making use of flexible material, e.g. supplied in roll form
- E04D5/10—Roof covering by making use of flexible material, e.g. supplied in roll form by making use of compounded or laminated materials, e.g. metal foils or plastic films coated with bitumen
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04D—ROOF COVERINGS; SKY-LIGHTS; GUTTERS; ROOF-WORKING TOOLS
- E04D1/00—Roof covering by making use of tiles, slates, shingles, or other small roofing elements
- E04D1/26—Strip-shaped roofing elements simulating a repetitive pattern, e.g. appearing as a row of shingles
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04D—ROOF COVERINGS; SKY-LIGHTS; GUTTERS; ROOF-WORKING TOOLS
- E04D1/00—Roof covering by making use of tiles, slates, shingles, or other small roofing elements
- E04D2001/005—Roof covering by making use of tiles, slates, shingles, or other small roofing elements the roofing elements having a granulated surface
-
- Y—GENERAL 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
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S428/00—Stock material or miscellaneous articles
- Y10S428/92—Fire or heat protection feature
- Y10S428/921—Fire or flameproofing
-
- Y—GENERAL 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
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
- Y10T428/24355—Continuous and nonuniform or irregular surface on layer or component [e.g., roofing, etc.]
- Y10T428/24372—Particulate matter
- Y10T428/2438—Coated
- Y10T428/24388—Silicon containing coating
-
- Y—GENERAL 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
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
- Y10T428/24479—Structurally defined web or sheet [e.g., overall dimension, etc.] including variation in thickness
-
- Y—GENERAL 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
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/29—Coated or structually defined flake, particle, cell, strand, strand portion, rod, filament, macroscopic fiber or mass thereof
- Y10T428/2982—Particulate matter [e.g., sphere, flake, etc.]
- Y10T428/2991—Coated
- Y10T428/2993—Silicic or refractory material containing [e.g., tungsten oxide, glass, cement, etc.]
-
- Y—GENERAL 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
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/31504—Composite [nonstructural laminate]
- Y10T428/31815—Of bituminous or tarry residue
-
- Y—GENERAL 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
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T442/00—Fabric [woven, knitted, or nonwoven textile or cloth, etc.]
- Y10T442/20—Coated or impregnated woven, knit, or nonwoven fabric which is not [a] associated with another preformed layer or fiber layer or, [b] with respect to woven and knit, characterized, respectively, by a particular or differential weave or knit, wherein the coating or impregnation is neither a foamed material nor a free metal or alloy layer
- Y10T442/2041—Two or more non-extruded coatings or impregnations
- Y10T442/2098—At least two coatings or impregnations of different chemical composition
- Y10T442/2107—At least one coating or impregnation contains particulate material
- Y10T442/2115—At least one coating or impregnation functions to fix pigments or particles on the surface of a coating or impregnation
-
- Y—GENERAL 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
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T442/00—Fabric [woven, knitted, or nonwoven textile or cloth, etc.]
- Y10T442/20—Coated or impregnated woven, knit, or nonwoven fabric which is not [a] associated with another preformed layer or fiber layer or, [b] with respect to woven and knit, characterized, respectively, by a particular or differential weave or knit, wherein the coating or impregnation is neither a foamed material nor a free metal or alloy layer
- Y10T442/2631—Coating or impregnation provides heat or fire protection
Definitions
- a fire retardant asphalt composition felt-base roofing material comprising a layer of asphalt-saturated roofing felt having on one face thereof at least two layers of asphaltic composition and, between said layers, an intermediate layer of refractory mineral roofing granules in dividually coated with a reaction product of a boraxsodium silicate mixture which upon exposure of the roofing and coated granules to flame temperatures intumesces to convert said intermediate layer to a hard tough insulating crust; and, as an article of commerce, such coated granules per se.
- This invention relates to fire-retardant roofing and particularly to fire-retardant asphalt shingles or roll roofing. It is further concerned with an intumescing-coated granule interlayer useful in producing these roofing materials and with the method of making roofing incorporating such a coated granule layer.
- roofing and shingle compositions of the conventional type consist of an asphalt-saturated felt base coated with one or more layers of asphalt which may or may not contain added mineral reinforcing fillers of the nature of slate or rock dust or the like, and have mineral granules embedded in the upper portions of the asphalt coating.
- These roofings although fire-resistant, are combustible and when exposed to conditions of severe fire will ignite with subsequent softening and flowing of the asphalt coatings, thus tending to further the spread of flame.
- a further object is to provide a fire-retardant roofing, the upper surface coatings of which on exposure to flame will intumesce and form a cokeor char which will not break up but will remain in place and not be displaced from its original position, thereby hindering the flame from reaching the roof deck and causing its ignition.
- a further object is to provide a roofing material which by intumescence in the upper series of coatings will tend to increase the insulation of a flame from an underlying wooden deck.
- a further object is to provide a roofing having an upper coating which upon exposure to flame will form an insulating mass or crust which is sulficiently cohesive and resistant to thermal stresses to maintain an effective insulating barrier to prevent flame from reaching an underlying roof deck.
- a further object is to provide an improved method of manufacturing such roofing.
- a still further object of the invention is to provide intumescing-coated refractory granules which will serve as an effective fire-retarding interlayer in the manufacture of the roofing described.
- FIG. 1 is a perspective view of a roofing shingle in accordance with the invention, partly broken away to illustrate its construction
- FIG. 2 is a cross sectional view of the shingle of FIG. 1, to an enlarged scale
- FIG. 3 is a diagrammatic illustration of the method of making the shingle of FIG. 1.
- the foregoing and other objects of the invention are accomplished by use between a sheet of asphalt impregnated roofing felt and a top layer of decorative granules of an interlayer of intumescing-coated mineral granules positioned between two layers of an asphalt coating composition comprising asphalt and fine mineral matter such as slate or rock dust.
- the upper layer of asphalt coating composition i.e., the layer nearest said top layer preferably also contains between about 5% and about 20% by weight of the asphalt coating composition of asbestos fibre of a class equivalent to Group 7 grade.
- Group 7 grade as used herein refers to a type so classified accordting to a screen analysis as shown in Canadian Dept. of Mines Bulletin #707 (1931) and U.S. Bureau of Mines Bulletin #403-Asbestos (1937).
- the other layer of asphalt coating composition also may contain such asbestos fiber, in the same amount.
- a sheet of a roofing felt e.g., a conventional organic fiber roofing felt 2, as for example one having a thickness in the range .055 to .070 inch and weighing about 50 to 60 pounds per 3 480 sq. ft. of dry felt, is impregnated with asphalt at 4 to about 175185% of its dry weight in a manner well known in the art.
- asphalt coating composition 6 comprising asphalt and mineral reinforcing matter including asbestos fibre of the class and in the amounts above described.
- asphalt coating composition 6 comprising asphalt and mineral reinforcing matter including asbestos fibre of the class and in the amounts above described.
- the amount of asphalt coating composition s0 applied and which has a softening point about 250-285 F. will preferably be about 20 pounds per 100 sq. ft. or may vary, for example, between about 8 pounds and about 30 pounds per 100 sq. ft.
- the back face of the felt 2 optionally may also be coated with this same coating composition, or with an asphalt coating composition which contains no asbestos fibre, and then lightly coated with talc, soapstone or the like.
- the coating 6 After the coating 6 has been smoothed to the desired thickness, it is surfaced with a layer 8 of my intumescingcoated granules consisting of mineral granules 10 having coatings 12 of a material which intumesces when heated, as hereinafter described.
- any excess granules are removed and a second or upper layer 16 of asphalt coating composition Similar in composition and amount to the lower layer 6 is applied and smoothed to the desired thickness. It is highly desirable that the asbestos fiber be included in this upper layer, as is indicated at 18.
- a top layer 20 of protective and decorative mineral granules is then applied in conventional manner and amount and the sheet cooled and cut into strips, shingles or the like.
- the coating 12 on the granules 10 of the interlayer 8 intumesces and, increasing in volume several fold, swells into a porous mass which tends to prevent flowing and running of the asphalt under the heat of the flame.
- the granule coating 12 first intumesces to a porous mass which, along with the asphalt and granules 10, will upon continuous heating fuse or sinter into a crust or coked mass that tends to insulate the roof deck from the flame.
- the intumescence of the coating takes place over all surfaces of the granules in the interlayer 8 and there is an increase in volume of the composite coatings and granule layers which on formation of the porous coked mass increases the vertical distance between the roof deck and the flame, e.g., of a burning brand resting on the roofing surface.
- As further heating occurs there takes place a shrinkage of the coating on the granules and at least a partial sintering of the intumesced coating which combines with the other materials in the char.
- the granules of the interlayer, individually coated with intumescing material produce upon heating an absorbent intumesced mass which prevents sliding and easy ignition of the asphalt coating.
- the solid glasslike material formed on increased heating fuses or sinters with the granules and coked asphalt to form a hard, tough insulating crust which acts as a firewall to protect the roof deck from ignition temperatures.
- the presence of the granules is thus highly advantageous.
- This intumescing granule coating which is low in cost, requires no manufacturing equipment or operations beyond well known normal methods for coating of roofing granules.
- the mineral filler such as rock dust in the asphalt coating composition is used principally to reinforce this coating and also reinforce the coked crust.
- the asphalt compositions used may contain up to 50% by Weight of total asbestos fibre and such mineral filler and yet be suitable for application by commonly known means.
- base granules 10 for preparation of the intumescingcoated granules I may use any mineral granule suitable for use in roofing, in gradings which will pass 4 mesh and be retained on mesh. Typically I may use a suitable rock which will withstand breaking up or shattering at the temperatures encountered in the Underwriters Laboratories tests for qualification of Class A roofing. I prefer to use granules of the grading commonly known as #11. This grading is substantially as follows:
- base granules 10 a grading commonly known as #9 and which is substantially as follows:
- base I Using this as base I would use about 44 pounds of intumescingcoated granules per 100 sq. ft., but any amount within the range 40 pounds to 50 pounds is satisfactory.
- a grading finer than #11 and commonly known as #18 grading is also possible, although again not preferable, to use as the base granules 10 a grading finer than #11 and commonly known as #18 grading.
- This grading is substantially as follows:
- the interlayer 8 may be composed entirely of intumescing-coated granules or there may be mixed therewith other mineral granules or the like, so long as there is used a sufficient quantity of the intumes-cing-coated granules, and coming within the limits set forth above for the respective grades, to impart the necessary fire-retardance required in the complete roofing material.
- the intumescing coating 12 be of such a nature that iutumescence may take place readily and rapidly at temperatures sufliciently low that this action will occur before the asphalt of the bituminous coatings has become decomposed and'charred and lost its binding effect. It must likewise occur before the asphalt has gradually hardened to the point where it resists the expansion of the intumescing coating and results in inability of the intumescing coating to intermix with the coked asphalt binder and other materials to form a firm insulating mass.
- a preferred typical formula for an intumescing coating 12 to be applied to a mineral granule base 10 is as follows. Throughout this application, parts are by weight unless otherwise stated.
- N brand sodium silicate is a sodium silicate solution, supplied by Philadelphia Quartz 00., containing 37.6% solids having a Na O to SiO ratio of 13.22.
- the granules are coated as follows.
- the borax and G brand sodium silicate are added to the granules in a suitable mixing drum or the like and the mixture tumbled for about 2 minutes to mix the dry ingredients.
- the water is added and the mixing continued for an added 4 minutes.
- the N brand sodium silicate is then added and the mixing continued for another 8 minues.
- the coated granules are then dried with mild agitation at about 220-250 F. They are then cooled to about 100 F.
- slate treating oil a very light mineral oil
- the moisture repellent prevents absorption of moisture by the coating and sticking in storage.
- the slate treating oil aids in the embedding of the granules in asphalt.
- the borax may be used in the form of sodium tetraborate pentahydrate (5 mol); sodium tetraborate decahydrate (10 mol) or sodium borate concentrates (Rasorite) passing 10 mesh to passing 200 mesh.
- the soluble sodium silicate solution in liquid form may have a ratio of sodium oxide to silica from 1:1.6 to 113.75.
- the soluble silicaie in powder form may be any which passes 20 mesh to 200 mesh and has a sodium oxide to silica ratio of from 2:1 to 1:322.
- the intumescing-coated granules there may be used, for each parts by weight of the mineral granule base, from 1 to 50 parts by weight of borax, with the other ingredients proportioned thereto as in the above formula.
- compositions are those variations of the above formula falling within the limits of 1 to 7 parts by weight of borax; 0 to 6 parts by weight of G brand sodium silicate; 3 to 10 parts by weight of N brand sodium silicate, and 1 to 5 parts, by weight, of water.
- the slate treating oil to provide protective coatings to prevent water absorption by the intumescingcoated granules and likewise to aid embedding of the granules in asphalt, there may be used as coatings on the granules any of the following materials: asphalt emulsions, oils, silicones or latex emulsions.
- the intumescing coating 12, and/or the bituminous coatings 6 and 16 may contain supplementary additives, as is known in the art, and the completed roofing material may include additional layers or materials than those described.
- a fire-retardant roofing material comprising a sheet of a roofing felt impregnated with an asphaltic material, a lower coating layer of an asphaltic composition on one face of said felt, an interlayer of refractory mineral roofing granules adhered to said lower coating layer, said granules being individually coated with a surface coating comprising a reaction product of a sodium silicate and borax which intumesces upon exposure of the coated granules to flame temperatures, an upper coating layer of an asphaltic composition over and adhered to said mineral granule layer, and a layer of decorative mineral granules adhering to said upper asphaltic composition layer.
- reac tion product is a reaction product of l to 50 parts by weight of borax for each 100 parts by weight of uncoated mineral granules.
- reaction product is a reaction product of 1 to 7 parts by weight of borax for each 100 parts by weight of uncoated mineral granules.
- reaction product is a reaction product of 1 to 50 parts by weight of borax for each 100 parts by weight of uncoated mineral granules.
- reaction product is a reaction product of 1 to 7 parts by weight of borax for each 100 parts by weight of uncoated mineral granules.
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Synthetic Leather, Interior Materials Or Flexible Sheet Materials (AREA)
- Roof Covering Using Slabs Or Stiff Sheets (AREA)
- Building Environments (AREA)
Description
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US363171A US3365322A (en) | 1964-04-28 | 1964-04-28 | Intumescent, coated roofing granules and asphalt composition felt-base roofing containing the same |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US363171A US3365322A (en) | 1964-04-28 | 1964-04-28 | Intumescent, coated roofing granules and asphalt composition felt-base roofing containing the same |
Publications (1)
Publication Number | Publication Date |
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US3365322A true US3365322A (en) | 1968-01-23 |
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US363171A Expired - Lifetime US3365322A (en) | 1964-04-28 | 1964-04-28 | Intumescent, coated roofing granules and asphalt composition felt-base roofing containing the same |
Country Status (1)
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US (1) | US3365322A (en) |
Cited By (19)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3617329A (en) * | 1967-07-03 | 1971-11-02 | Myron F Goff | Method for spray-coating a roof with a composition containing liquid asphalt and fluffed asbestos fiber |
US4136223A (en) * | 1978-04-04 | 1979-01-23 | A/S Hotaco | Plate-shaped roofing element |
DE2830641A1 (en) * | 1977-07-11 | 1979-01-25 | Minnesota Mining & Mfg | EXPANDABLE FIRE RESISTANT PRODUCTS |
US4172744A (en) * | 1975-06-24 | 1979-10-30 | Takashi Ishikawa | Granulated fire-retardant materials and their applications |
FR2431922A1 (en) * | 1978-06-14 | 1980-02-22 | Bfg Glassgroup | PROCESS FOR MANUFACTURING A FIRE-RESISTANT GLAZING AND PRODUCT OBTAINED ACCORDING TO THIS PROCESS |
US4218502A (en) * | 1978-06-19 | 1980-08-19 | Minnesota Mining And Manufacturing Company | Intumescable fire-retardant products |
US4234639A (en) * | 1979-07-23 | 1980-11-18 | Minnesota Mining And Manufacturing Company | Intumescable fire-retardant products |
EP0162391A2 (en) * | 1984-05-19 | 1985-11-27 | Hoechst Aktiengesellschaft | Non-woven fabric for making fire-resistant roofing material |
US4567079A (en) * | 1984-10-01 | 1986-01-28 | Gaf Corporation | High-strength built-up roofing using improved ply sheets |
DE3927198A1 (en) * | 1989-08-17 | 1991-02-21 | Heinrich Wilhelm Roth | Restriction of spread of fire - involves material which turns to foam when heated to block space under sloping roof |
EP0881338A2 (en) * | 1997-05-30 | 1998-12-02 | Hoechst Trevira GmbH & Co. KG | Flame retardant shingle |
US20070042150A1 (en) * | 2005-07-18 | 2007-02-22 | Hopkins John R | Adhesive coverings and methods of producing and using the same |
US20070068107A1 (en) * | 2005-09-26 | 2007-03-29 | Maurer Scott D | Architectural interleaf for shingle roof |
US20080313986A1 (en) * | 2004-10-15 | 2008-12-25 | George Spais | Collar for increasing T-ratings and performance of firestop systems |
US9242432B1 (en) * | 2014-12-30 | 2016-01-26 | Owens Corning Intellectual Capital, Llc | Roofing material with locally applied fire resistant material |
US20170191270A1 (en) * | 2012-11-09 | 2017-07-06 | Johns Manville | Fire resistant composite boards and methods |
US9725907B2 (en) | 2013-03-15 | 2017-08-08 | Owens Corning Intellectual Capital, Llc | Fire retardant roofing system, shingle and layer |
US20180135302A1 (en) * | 2016-11-14 | 2018-05-17 | Owens Corning Intellectual Capital, Llc | Asphalt shingles with a fire-retardant additive |
US10094115B2 (en) * | 2011-12-29 | 2018-10-09 | Certainteed Corporation | Roofing granules comprising sintered base particles |
Citations (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US917543A (en) * | 1907-05-17 | 1909-04-06 | Merchant & Evans Company | Roofing material. |
US1271506A (en) * | 1913-11-18 | 1918-07-02 | Pyrene Mfg Co | Fire-extinguishing and firefroofing composition. |
US1548910A (en) * | 1919-07-28 | 1925-08-11 | Brown Co | Wall and roof covering |
US1642316A (en) * | 1923-07-05 | 1927-09-13 | Johns Manville | Roof |
US1766814A (en) * | 1926-10-13 | 1930-06-24 | Carey Philip Mfg Co | Process for coloring mineral granules |
US2139955A (en) * | 1937-03-17 | 1938-12-13 | Blue Ridge Slate Corp | Colored glass coated refractory granules |
US2782129A (en) * | 1955-12-20 | 1957-02-19 | Allied Chem & Dye Corp | Fire retardant coated roofing sheet and process for preparing |
US3053714A (en) * | 1957-05-16 | 1962-09-11 | Wood Conversion Co | Intumescent coating |
US3090764A (en) * | 1957-12-26 | 1963-05-21 | Benjamin Foster Company | Intumescent mastic coating |
-
1964
- 1964-04-28 US US363171A patent/US3365322A/en not_active Expired - Lifetime
Patent Citations (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US917543A (en) * | 1907-05-17 | 1909-04-06 | Merchant & Evans Company | Roofing material. |
US1271506A (en) * | 1913-11-18 | 1918-07-02 | Pyrene Mfg Co | Fire-extinguishing and firefroofing composition. |
US1548910A (en) * | 1919-07-28 | 1925-08-11 | Brown Co | Wall and roof covering |
US1642316A (en) * | 1923-07-05 | 1927-09-13 | Johns Manville | Roof |
US1766814A (en) * | 1926-10-13 | 1930-06-24 | Carey Philip Mfg Co | Process for coloring mineral granules |
US2139955A (en) * | 1937-03-17 | 1938-12-13 | Blue Ridge Slate Corp | Colored glass coated refractory granules |
US2782129A (en) * | 1955-12-20 | 1957-02-19 | Allied Chem & Dye Corp | Fire retardant coated roofing sheet and process for preparing |
US3053714A (en) * | 1957-05-16 | 1962-09-11 | Wood Conversion Co | Intumescent coating |
US3090764A (en) * | 1957-12-26 | 1963-05-21 | Benjamin Foster Company | Intumescent mastic coating |
Cited By (28)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3617329A (en) * | 1967-07-03 | 1971-11-02 | Myron F Goff | Method for spray-coating a roof with a composition containing liquid asphalt and fluffed asbestos fiber |
US4172744A (en) * | 1975-06-24 | 1979-10-30 | Takashi Ishikawa | Granulated fire-retardant materials and their applications |
DE2830641A1 (en) * | 1977-07-11 | 1979-01-25 | Minnesota Mining & Mfg | EXPANDABLE FIRE RESISTANT PRODUCTS |
FR2397500A1 (en) * | 1977-07-11 | 1979-02-09 | Minnesota Mining & Mfg | EXPANDABLE FLAME RESISTANT PRODUCTS |
US4136223A (en) * | 1978-04-04 | 1979-01-23 | A/S Hotaco | Plate-shaped roofing element |
US4268581A (en) * | 1978-06-14 | 1981-05-19 | Bfg Glassgroup | Fire-screening glazing panels and method of manufacturing same |
FR2431922A1 (en) * | 1978-06-14 | 1980-02-22 | Bfg Glassgroup | PROCESS FOR MANUFACTURING A FIRE-RESISTANT GLAZING AND PRODUCT OBTAINED ACCORDING TO THIS PROCESS |
US4218502A (en) * | 1978-06-19 | 1980-08-19 | Minnesota Mining And Manufacturing Company | Intumescable fire-retardant products |
US4234639A (en) * | 1979-07-23 | 1980-11-18 | Minnesota Mining And Manufacturing Company | Intumescable fire-retardant products |
EP0162391A2 (en) * | 1984-05-19 | 1985-11-27 | Hoechst Aktiengesellschaft | Non-woven fabric for making fire-resistant roofing material |
EP0162391A3 (en) * | 1984-05-19 | 1986-06-25 | Hoechst Aktiengesellschaft | Non-woven fabric for making fire-resistant roofing material |
US4567079A (en) * | 1984-10-01 | 1986-01-28 | Gaf Corporation | High-strength built-up roofing using improved ply sheets |
DE3927198A1 (en) * | 1989-08-17 | 1991-02-21 | Heinrich Wilhelm Roth | Restriction of spread of fire - involves material which turns to foam when heated to block space under sloping roof |
DE3927198C2 (en) * | 1989-08-17 | 1998-06-04 | Heinrich Wilhelm Roth | Fire-retardant device on the steep roof of a building |
EP0881338A2 (en) * | 1997-05-30 | 1998-12-02 | Hoechst Trevira GmbH & Co. KG | Flame retardant shingle |
EP0881338A3 (en) * | 1997-05-30 | 2001-10-10 | Johns Manville International, Inc. | Flame retardant shingle |
US20080313986A1 (en) * | 2004-10-15 | 2008-12-25 | George Spais | Collar for increasing T-ratings and performance of firestop systems |
US7913468B2 (en) * | 2004-10-15 | 2011-03-29 | George A Spais | Collar for increasing T-ratings and performance of firestop systems |
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US9242432B1 (en) * | 2014-12-30 | 2016-01-26 | Owens Corning Intellectual Capital, Llc | Roofing material with locally applied fire resistant material |
US20180135302A1 (en) * | 2016-11-14 | 2018-05-17 | Owens Corning Intellectual Capital, Llc | Asphalt shingles with a fire-retardant additive |
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