GB1571032A - Building panels - Google Patents

Building panels Download PDF

Info

Publication number
GB1571032A
GB1571032A GB26222/77A GB2622277A GB1571032A GB 1571032 A GB1571032 A GB 1571032A GB 26222/77 A GB26222/77 A GB 26222/77A GB 2622277 A GB2622277 A GB 2622277A GB 1571032 A GB1571032 A GB 1571032A
Authority
GB
United Kingdom
Prior art keywords
bitumen
web
board
roller
panel
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
Application number
GB26222/77A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
PRE SEAL CO Ltd
Original Assignee
PRE SEAL CO Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by PRE SEAL CO Ltd filed Critical PRE SEAL CO Ltd
Priority to GB26222/77A priority Critical patent/GB1571032A/en
Publication of GB1571032A publication Critical patent/GB1571032A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B11/00—Layered products comprising a layer of bituminous or tarry substances
    • B32B11/10—Layered products comprising a layer of bituminous or tarry substances next to a fibrous or filamentary layer
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B11/00—Layered products comprising a layer of bituminous or tarry substances
    • B32B11/02—Layered products comprising a layer of bituminous or tarry substances with fibres or particles being present as additives in the layer
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
    • D06N5/00—Roofing materials comprising a fibrous web coated with bitumen or another polymer, e.g. pitch
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2260/00—Layered product comprising an impregnated, embedded, or bonded layer wherein the layer comprises an impregnation, embedding, or binder material
    • B32B2260/02—Composition of the impregnated, bonded or embedded layer
    • B32B2260/021—Fibrous or filamentary layer
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2260/00—Layered product comprising an impregnated, embedded, or bonded layer wherein the layer comprises an impregnation, embedding, or binder material
    • B32B2260/04—Impregnation, embedding, or binder material
    • B32B2260/042—Bituminous or tarry substance
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2607/00—Walls, panels

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Textile Engineering (AREA)
  • Synthetic Leather, Interior Materials Or Flexible Sheet Materials (AREA)
  • Roof Covering Using Slabs Or Stiff Sheets (AREA)

Description

(54) IMPROVEMENTS IN OR RELATING TO BUILDING PANELS (71) We, THE PRE-SEAL COM PANY LIMITED, a British Body Corporate, of Arch Lane, Garswood, near Wigan, Lancashire, do hereby declare the invention, for which we pray that a patent may be granted to us, and the method by which it is to be performed, to be particularly described in and by the following statement: The present invention concerns stressOear- ing building panels which are used for roofing.
Such stress bearing building panels as described in Patent 1,524,734 comprise chip- or particleCoards or plywood boards which in use are protected by layers of roofing felt. In this specification and the appended claims, a stessEbearing building panel means such a boardHbased panel. To protect the panel after it is installed before the specialist teams of felting contractors cover it with the protective felt, the panel can have a layer of bitumen and/or felt applied before it is delivered to site. In British Patent 1,524,734, it is proposed that the panel be completely covered both on its faces and edges with bitumen and that a layer of felt formed by saturating a web be applied to one face before the bitumen saturating the web has cooled sufficiently to set.
The present invention is a development of the later idea and in accordance with the present invention, there is provided a method of making a stress-bearing building panel as herein defined comprising coating a board on at least one face with bitumen to form an impervious layer and before the bitumen has set applying an open textured web to the bitumen so that the web is at least partially impregnated by the bitumen already on the board.
Preferably the board is completely coated with bitumen as described in Patent 1,524,734.
By open textured web is meant a web which can be impregnated with bitumen by being immersed therein and is desirably readily wettable by bitumen so as to avoid capillary holes through which moisture could penetrate. A suitable web is of glass fibre, such as Rubertex GSM glass tissue, which is prepared for bitumen impregnation.
The apparatus described in Patent 1,524,734 can be used for the present invention but, since the web is dry when applied to the board, there is no need for the means for pre-saturating the web. Thus the necessary apparatus comprises a means for supporting a board, a hopper for depositing hot bitumen on one face of the board, a roller or other means for spreading the bitumen to form an impervious coating, and means for guiding a web onto a roller (which can be the firstqmentioned roller for application to the coating. The roller for applying the web to the coating is set to force the web down onto the board so that the web is at least partially impregnated by the bitumen.
If the web is not fully impregnated it is possible to apply further bitumen and to force this down into the web to complete the impregnation.
The present invention, and that of Patent 1,524,734, relates to the pre-treatment of boards to form roofing panels prior to delivery to site for installation, the pre-treatment giving the panels a measure of protection against the elements prior to a final finishing water proofing treatment.
WIlAT WE CLAIM IS: 1. A method of making a stressibearing building panel as herein defined comprising coating a board on at least one face with bitumen to form an impervious layer and before the bitumen has set applying an open textured web to the bitumen so that the web is at least partially impregnated by the bitumen already on the board.
2. A method according to daim 1 wherein the bitumen is deposited on the board from a heated hopper and is spread over the board's face by a roller and wherein said roller also applies the web to the bitumen and presses it into the bitumen.
3. A method according to claim 1 or claim 2 wherein the bitumen is also applied to the edges of the board.
4. A method according to any preceding claim wherein the bitumen is applied to both faces of the board.
5. A method of making a stressXbearing building panel substantially as herein described.
**WARNING** end of DESC field may overlap start of CLMS **.

Claims (5)

**WARNING** start of CLMS field may overlap end of DESC **. (54) IMPROVEMENTS IN OR RELATING TO BUILDING PANELS (71) We, THE PRE-SEAL COM PANY LIMITED, a British Body Corporate, of Arch Lane, Garswood, near Wigan, Lancashire, do hereby declare the invention, for which we pray that a patent may be granted to us, and the method by which it is to be performed, to be particularly described in and by the following statement: The present invention concerns stressOear- ing building panels which are used for roofing. Such stress bearing building panels as described in Patent 1,524,734 comprise chip- or particleCoards or plywood boards which in use are protected by layers of roofing felt. In this specification and the appended claims, a stessEbearing building panel means such a boardHbased panel. To protect the panel after it is installed before the specialist teams of felting contractors cover it with the protective felt, the panel can have a layer of bitumen and/or felt applied before it is delivered to site. In British Patent 1,524,734, it is proposed that the panel be completely covered both on its faces and edges with bitumen and that a layer of felt formed by saturating a web be applied to one face before the bitumen saturating the web has cooled sufficiently to set. The present invention is a development of the later idea and in accordance with the present invention, there is provided a method of making a stress-bearing building panel as herein defined comprising coating a board on at least one face with bitumen to form an impervious layer and before the bitumen has set applying an open textured web to the bitumen so that the web is at least partially impregnated by the bitumen already on the board. Preferably the board is completely coated with bitumen as described in Patent 1,524,734. By open textured web is meant a web which can be impregnated with bitumen by being immersed therein and is desirably readily wettable by bitumen so as to avoid capillary holes through which moisture could penetrate. A suitable web is of glass fibre, such as Rubertex GSM glass tissue, which is prepared for bitumen impregnation. The apparatus described in Patent 1,524,734 can be used for the present invention but, since the web is dry when applied to the board, there is no need for the means for pre-saturating the web. Thus the necessary apparatus comprises a means for supporting a board, a hopper for depositing hot bitumen on one face of the board, a roller or other means for spreading the bitumen to form an impervious coating, and means for guiding a web onto a roller (which can be the firstqmentioned roller for application to the coating. The roller for applying the web to the coating is set to force the web down onto the board so that the web is at least partially impregnated by the bitumen. If the web is not fully impregnated it is possible to apply further bitumen and to force this down into the web to complete the impregnation. The present invention, and that of Patent 1,524,734, relates to the pre-treatment of boards to form roofing panels prior to delivery to site for installation, the pre-treatment giving the panels a measure of protection against the elements prior to a final finishing water proofing treatment. WIlAT WE CLAIM IS:
1. A method of making a stressibearing building panel as herein defined comprising coating a board on at least one face with bitumen to form an impervious layer and before the bitumen has set applying an open textured web to the bitumen so that the web is at least partially impregnated by the bitumen already on the board.
2. A method according to daim 1 wherein the bitumen is deposited on the board from a heated hopper and is spread over the board's face by a roller and wherein said roller also applies the web to the bitumen and presses it into the bitumen.
3. A method according to claim 1 or claim 2 wherein the bitumen is also applied to the edges of the board.
4. A method according to any preceding claim wherein the bitumen is applied to both faces of the board.
5. A method of making a stressXbearing building panel substantially as herein described.
GB26222/77A 1977-06-23 1977-06-23 Building panels Expired GB1571032A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB26222/77A GB1571032A (en) 1977-06-23 1977-06-23 Building panels

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB26222/77A GB1571032A (en) 1977-06-23 1977-06-23 Building panels

Publications (1)

Publication Number Publication Date
GB1571032A true GB1571032A (en) 1980-07-09

Family

ID=10240254

Family Applications (1)

Application Number Title Priority Date Filing Date
GB26222/77A Expired GB1571032A (en) 1977-06-23 1977-06-23 Building panels

Country Status (1)

Country Link
GB (1) GB1571032A (en)

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
732 Registration of transactions, instruments or events in the register (sect. 32/1977)
PCNP Patent ceased through non-payment of renewal fee