GB2030629A

GB2030629A - A Ridge Covering for a Tiled Roof

Info

Publication number: GB2030629A
Application number: GB7834627A
Authority: GB
Original assignee: Redland Roof Tiles Ltd
Current assignee: Redland Roof Tiles Ltd
Priority date: 1978-08-25
Filing date: 1978-08-25
Publication date: 1980-04-10
Also published as: IE791624L; ZA794344B; IE48812B1; FR2434245A1; FR2434245B3; GB2030629B

Abstract

A ridge covering for a tiled pitched roof comprises ridge caps (16) fastened to a ridge batten (15). Sealing strips (33) of asphalt bonded asbestos are provided for sealing between the longitudinal edges of the ridgecaps (16) and the roof tiles (13). Each sealing strip (33) comprises two downwardly extending portions (35) which are shaped to conform to the contours of the roof tiles and a channel (34) between the two portions in which the edge of the ridge cap (16) sits. Ridge seal members (40) are provided to seal between adjacent ridge caps (16). The ridge seal members (40) are of inverted T section moulded from plastics material Fig. 3 (not shown). A sheet metal bracket (17) for securing the ridge batten (15) to the rafter (10) is also described, Fig. 2 (not shown). <IMAGE>

Description

SPECIFICATION A Ridge Covering for a Tiled Roof The invention reiates to ridge coverings for tiled roofs and provides a ridge covering fitted to a tiled pitched roof and comprising ridge caps fastened to a ridge batten which is in turn secured to the apex of the rafters of the roof and sealing strips for sealing between the longitudinal edges of the ridge caps and the roof tiles on each side of the ridge batten in which each sealing strip comprises a downwardly extending portion or portions which are shaped to confirm to the contours of the roof tiles and an upwardly facing channel which is engaged by one longitudinal edge of the ridge cap.

Preferably each sealing strip has two downwardly extending portions connected at their upper edges by the upwardly facing channel.

The sealing strips may be formed from asphalt bonded asbestos.

Preferably a ridge seal member is provided between the ends of adjacent ridge gaps, said ridge seal member being T-shaped in cross section and shaped to conform to the underside contour of the ridge caps and being arranged in use with an end of a ridge cap resting on each arm of the T and the upright of the T extending upwardly between the ridge caps. The ridge seal members may be of plastics material.

Preferably the ridge caps are fastened to the ridge batten by nails passing through holes in the ridge caps and tubular washers are prpvided to seal between the nails and the holes.

The invention also includes a tile pitched roof including a ridge covering as described above.

A preferred embodiment of the invention will now be described, by way of example, with reference to the accompanying drawings, in which: Figure 1 its a section through the ridge of a tiled pitched roof embodying the invention; Figure 2 is an underneath plan view of the ridge batten supporting bracket of the roof of Figure 1, and Figure 3 is a section along the line 3-3 of Figure 1.

Referring to the drawings, and particularly Figure 1, a portion of a tiled pitched roof is shown in which wooden rafters 10, arranged in pairs, meet at an apex 1 Wooden battens 12 are nailed to the rafters at spaced intervals on either side of the apex or ridge 11 and roofing tiles 1 3 are laid on the battens 12.

The uppermost course of tiles 13 on either side of the ridge is shown in Figure 1 and the gap between these courses is closed by a ridge covering including a ridge batten 1 5 to which are secured ridge caps or tiles 1 6 of known type.

The ridge batten 1 5 extends longitudinally above the apex 11 and is secured to the pairs of rafters 10 by brackets 1 7.

As shown in Figure 2, each bracket 1 7 consists of a metal plate cut and punched to form two first rafter engaging portions 1 8 and two second batten engaging portions 1 9. Each rafter engaging portion 1 8 is a rectangular tongue which extends from a central portion 20 of the plate and includes tangs 21 punched out from'the piate and projecting towards a viewer when looking at Figure 2. The two portions 18 are aligned and extend in opposite directions from the central portion 20 which includes strengthening ribs 22. The central portion 20 has tangs 20a punched therefrom which, looking at Figure 2, extend away from the viewer.

The two batten engaging portions 1 9 of the bracket 1 7 also extend in opposite directions from the central portion 20 and are arranged one on each side of the rafter engaging portions 1 8 as shown in Figure 2. Tangs 24 are also formed in the batten engaging portions 1 9 of the bracket, punched out from the plates, and extending away from the viewer looking at Figure 2. The use of the bracket 1 7 is as follows. Before fixing the uppermost battens 12 the brackets 1 7 are attached to each of the pairs of rafters 10 by bending the portions 18 downwardly to conform to the pitch angle of the rafters and by hammering the tangs 21 through a roofing felt laid over the rafters into the rafters 10.The uppermost battens 1 2 are then attached overlying the portions 1 8 and each nail fastening 1 2a therefore passes through the battens, the portions 18, the roofing felt and into the rafter 10. Thereafter nails 26 are used to aid the attachment of the bracket to the rafters and to give added strength and rigidity to the system. The ridge batten 1 5 is then positioned overlying all of the brackets 1 7 and is hammered to cause the tangs 20a to penetrate thereinto to provide temporary fixing of the batten 1 5.The portions 1 9 of the bracket 1 7 are thereafter bent up and wrapped around the batten 15 to take up the positions shown in Figure 1, the tangs 24 thereof being forced into the two sides and upwardly facing edge thereof to secure it in position. Thus, the lower surface of the batten is supported on the central portion 20 of the bracket - and each portion 1 9 engages the three other sides of the batten 1 5 so that the batten is very firmly fixed to the rafters. It will also be appreciated that because the portions 1 9 are offset, the batten is secured at two spaced positions above each pair of rafters 10.Extra nails may be driven through each portion 1 9 of the bracket 1 7 into the upper surface of the ridge batten for extra strength.

As can be seen from Figure 1, the ridge caps 1 6 are generally C-shaped in cross-section and are secured to the ridge batten 1 5 by nails 28 passing through holes 29 in the ridge caps and into the batten 1 5. Plain neoprene washers 30 are provided between the heads of the rails 28 and the upper surface of the tiles 16 which washers 30 deform as the nails 28 are driven into the ridge batten 1 5 thus to seal the holes 29 against the ingress of water.

The edges 31 of the ridge caps extend parallel to the batten 1 5 and above the roofing tiles 13.

To seal the gaps between the ridge caps and roofing tiles, sealing members 33 are provided.

Each sealing member or strip 33 is an elongate member of asphalt bonded asbestos sheet material including an upwardly facing channel 34 and two downwardly extending skirts 35 each of which is shaped to conform to the contours of the roofing tiles 13. In use, the sealing member is placed on the roofing tiles 13 with the skirts 35 locating on the contours of the roofing tiles and the ridge cap is then fixed in posittion with one edge in the channel 34. It will be appreciated that the channel 34 is of constant depth and that the skirts 35 vary in depth along their length other than when used with a plain tile. It is believed that the shape of the sealing strip 33 assists in preventing the ingress of driven rain, or splashing rain, into the interior of the roof by the provision of two tranquil zones 38,39 across which it will be difficult for water to travel.Along the roof the strips 33 are simply abutted in end to end relationship; however, to add rigidity to the system the ends of each strip are provided with a half cut rebate joint which is complementary to that of a preceding strip.

The gaps between adjacent ridge caps 16 are sealed by plastics sealing members 40 (see Figures 1 and 3). As can be seen in Figure 1, the sealing member 40 is shaped to provide primary and-secondary water channels 45, 46 and, as can be seen from Figure 3, the sealing member is Tshaped in cross-section. Edges of adjacent ridge tiles 1 6 rest on the arms 41 of the T and the upright 42 of the T extends upwardly between the adjacent ridge caps. The depending ends of the Tshaped sealing member 40 extend to just above the channels 34 of the strips 33 and thus any water enter;ng the primary and secondary channels is led away via the strips 33 and the tiles extending therebeneath.

A major advantage of the above described ridge covering is that it provides a "dry" ridge covering, that is to say one which is constructed without the use of mortar or a like bonding agent.

Claims

1. A ridge covering fitted to a tiled pitched roof and comprising ridge caps fastened to a ridge batten which is in turn secured to the apex of the rafters of the roof and sealing strips for sealing between the longitudinal edges of the ridge caps and the roof tiles on each side of the ridge batten in which each sealing strip comprises a downwardly extending portion or portions which are shaped to conform to the contours of the roof tiles and an upwardly facing channel which is engaged by one longitudinal edge of the ridge cap.

2. A ridge covering as claimed in claim 1 in which each sealing strip has two downwardly extending portions connected at their upper edges by the upwardly facing channel.

3. A ridge covering as claimed in claim 1 or claim 2 in which each sealing strip is formed from asphalt bonded asbestos.

4. A ridge covering as claimed in any one of the preceding claims in which a ridge seal member is provided between the ends of adjacent ridge gaps, said ridge seal member being Tshaped in cross-section and shaped to conform to the underside contour of the ridge caps and being arranged in use with an end of a ridge cap resting on each arm of the T and the upright of the T extending upwardly between the ridge caps.

5. A ridge covering as claimed in claim 4 in which each ridge seal member is a plastics moulding.

6. A ridge covering as claimed in any one of the preceding claims in which the ridge caps are fastened to the ridge batten by nails passing through holes in the ridge caps and tubular washers are provided to seal between the nails and the holes.

7. A ridge covering substantially as hereinbefore described with reference to and as shown in the accompanying drawings.

8. A tiled pitched roof including a ridge covering as claimed in any one of the preceding claims.