GB2193984A - A roofing or cladding system - Google Patents

Abstract

A roofing or cladding system comprises overlapping tiles (4). Each tile (4) has an outer shell (5) of durable material (e.g. fibre reinforced cement) and an insulating filling (6). The shell (5) has a rear extension (7) which is overlapped by the next uppermost tile (4). <IMAGE>

Description

SPECIFICATION A roofing or cladding system This invention relates to a roofing or cladding system. More especially the invention relates to an improved roofing system which is intended to simulate a traditional Bermuda lapped slate roof.

According to the invention there is provided a roof or cladding system comprising overlapping tiles, wherein each tile has an outer sheel of durable material with an insulating filling, the shell having an integral rearward extension which is overlapped by the next uppermost tile of the system.

Preferably the extension of each tile is an integral rearward continuation of the uppermost surface of the shell of the tile.

In a ridge roof construction according to the invention the rearward extensions of the uppermost tile may meet at the ridge and be capped by ridge tiles.

In some roofing constructions the lowermost tile may overlap a rearward extension of a gutter member.

The roofing system may include rainwater glide members for mounting on the roof tiles near to an eave of the roof, each of which glide members has an outer shell or durable material with an insulating filler, the shell having an integral rearward extension which is overlapped by the next uppermost tile of the roof.

Preferably the durable material of the shell of each tile and its extension is glass fibre reinforced cement material.

Preferably the insulating filler is polyurethane or phenolic foam or similar material.

The tiles may be shaped to simulate a traditional Bermuda lapped slate roof.

Some embodiments of the invention will now be described, by way of example, with reference to the accompanying drawings, in which: Figure 1 is a sectional view through the lower part of one side of a ridge roofing system according to the invention, Figure 2-is a sectional view through the ridge of the roof, Figure 3 is a sectional view through one eave of the roof showing a gutter member, Figure 4 is a sectional view similar to Fig. 1 but showing a rainwater glide member incorporated in the roof, and Figure 5 is a view similar to Fig. 1 showing another shape of tile which may be employed in a roofing system according to the invention.

Referring to the drawings Fig. 1 shows the lower part of one side of a simulated Bermuda lapped slate roof constructed according to the invention. A main rafter I is supported on an upright 2 and there are conventional roofing slats 3 fixed to the upperside of the rafters 1 of the roof. A series of overlapping tiles 4 are fixed to the basic roof structure. Each tile 4 has an outer shell 5 of a durable material, preferably glass fibre reinforced cement material, and an insulating filling 6 for example of polyurethane or phenolic foam.

The uppermost surface of the shell 5 of the tile has an integral rearward extension 7 which is a continuation of the uppermost surface of the shell 5. The extension 7 ends in an upturned locking flange 8 which is illustrated rests on the rafters and can be securely attached to a number of rafters using nails, screws, bolts or an appropriate adhesive. Usually each tile is of sufficient width to extend across at least two adjacent rafters.

In the roofing system the rearward extension 7 of each shell is overlapped by the next uppermost tile of the system with the locking flange 8 locking beneath the next uppermost tile which is shaped for ease of locking installation in the manner illustrated.

The shells of the tiles are so shaped that when in position they simulate a traditional Bermuda lapped slate roof. The lowermost tile 9 shown as an eave tile in Fig. 1 is of similar construction but different shape being of greater extension so that it extends beyond the end of the rafters 1. This eave tile also has a rearward extension 7 which locks beneath the next uppermost overlapping tile 4 of the roof. A rainwater glide 10 of right triangu lar cross-section is adhered to one of the tiles 4 just above the cave. The glide 10 comprises a shell 11 of glass fibre reinforced cement material filled with insulating material 12 and the base of the glide is adhered to the upper surface of one of the tiles 4 with a glass fibre reinforced cement mix.This glide acts to divert rainwater during heavy rainfail to a rainwater collection pipe which may carry the rainwater to an underground storage tank.

The ridge of the roof is illustrated in Fig. 2.

The rafters 1 meet at a ridge pole 13 and the rearward extensions 7 of the uppermost tiles of each side of the roof do not have the locking flanges 8 but meet above the ridge pole illustrated. These extensions are capped at the ridge by ridge tiles 14 which are also fabricated from glass fibre reinforced cement material and which are adhered to the ridge by a glass fibre reinforced cement mix 15.

Fig. 3 illustrates and alternative arrangement in which the rainwater glide members 10 and the eave tiles 9 are omitted and the lowermost tile 4 overlaps a rearward extension 16 of a deep gutter member 17 which is secured to the ends of the rafters 1.

Fig. 4. illustrates another roofing system in which the rainwater glide members 10 constructed with a shell of glass fibre cement material 11 and an insulating filling 12 has an integral rearward extension 18 which is an extension of the base of the shell of the glide member. This rearward extension is overlapped by the next uppermost tile 4 of the roof and is sandwiched between the lower surface of the shell of that next uppermost tile and the rearward extension 7 of the tile 4 on which the glide member 10 is seated. The glide member is positioned near the lowermost end of the tile on which it is seated so as to define a deep channel of rainwater which is conducted to a rainwater collection pipe 19 as illustrated.

Fig. 5 shows another tile construction according to the invention in which the upper surface of the shell of each tile is shaped to simulate a number of lapped slates of Bermuda roof and has a short integral rearward extension 20 which is overlapped by a nose 21 shaped into the lower edge of the shell of the next uppermost tile. The extreme lower edge of the next uppermost tile is also shaped as indicated at 22 so as to overlap the rear edge of the multiple eave tile 4 as illustrated in Fig. 5. Each of the joints between the various parts of the roofing or cladding system are sealed with compatible waterproof materials and fillers may be applied for water proofing and sealing purposes.Because of the particular shape including the hook shaped flanges 8 the tiles fit snugly together and interlock to provide a watertight and close fitt ins seal for mutual support throughout the roofing or cladding system.

Each of the shaped tiles may be supplied in a "raw material" state. Alternatively finishes may be applied before the tiles are installed for example, baked-on-synthetic coatings, ce mentitious coatings, natural slate chippings, bitumen felts, compatible roof coatings, ano dised or baked colour coated aluminium, or coloured fibreglass reinforced epoxy resin.

Finishes may be applied after the tiles are secured in position.

The invention thus provides a roofing or cladding system which can be mass-produced from a variety of readily available materials, which is strong and light in weight and over comes the problem of the diminshing supply of traditional roofing materials, particularly in island communities where the traditional sup ply of Bermuda slate is diminishing.

The traditional roofing appearance is maintained and the roofing system according to the invention while preserving the appearance of the traditional Bermuda roof, has an even greater strength than the traditional Bermuda lapped slate roof.

Claims (9)

1. A roofing or cladding system comprising overlapping tiles, wherein each tile has an outer shell or durable material with an insulat ing filling, the shell having an integral rearward extension which is overlapped by the next up permost tile of the system.

2. A roofing system as claimed in Claim 1, wherein the extension of each tile is an inte gral rearward continuation of the uppermost surface of the shell of the tile.

3. A roofing system as claimed in Claim 1 or Claim 2, forming a ridge roof in which the rearward extensions of the uppermost tiles meet at the ridge and are capped by ridge tiles.

4. A roofing system as claimed in any one of Claims 1 to 3, wherein the lowermost tile overlaps a rearward extension of a gutter member.

5. A roofing system as claimed in any one of Claims 1 to 4, including rainwater glide members for mounting on the roof tiles near to an eave of the roof, each of which glide member has an outer shell of durable material with an insulating filler, the shell having an integral rearward extension which is overlapped by the next uppermost tile of the roof.

6. A system as claimed in any one of Claims 1 to 5, wherein said durable material of the shell and its extension is glass fibre reinforced cement material.

7. A system as claimed in Claim 6, wherein the insulating filler is polyurethane, phenolic foam or similar material.

8. A roofing system as claimed in any one of Claims 1 to 7, wherein the tiles are shaped to simulate a traditional Bermuda lapped slate roof.

9. A roofing system substantially as herein described with reference to the accompanying drawings.