GB2152967A

GB2152967A - Roof dry verge structures

Info

Publication number: GB2152967A
Application number: GB08500188A
Authority: GB
Inventors: Leslie Gerald Hammond; John Fifield
Original assignee: Anchor Building Products Ltd
Current assignee: Anchor Building Products Ltd
Priority date: 1984-01-17
Filing date: 1985-01-04
Publication date: 1985-08-14
Also published as: GB8401152D0; GB2152967B; IE850084L; IE56265B1; GB8500188D0

Abstract

A dry verge system comprises a plurality of elongate, L-shaped, in cross-section verge members 1 with the base of the L forming an upper portion 2 and the leg of the L forming a front portion 3 which, when considered in end elevation, has opposite end regions forming complementary male and female portions 9 and 10 respectively which are provided with respective apertures 13 and 14 therein so that the male portions 9 can be engaged in the female portions 10 of adjacent ones of the verge members 1 in overlapping relationship with the apertures 13 and 14 of the adjacent overlapping verge members in alignment, and a plurality of lug members 19 each of which is adapted to co-operate with the aligned apertures 13 and 14 of the adjacent overlapping verge members 1 to secure the latter to one another. <IMAGE>

Description

SPECIFICATION Roof structures The present invention relates to roof structures and has for its object improvements in dry verge systems for use in securing the side edge of a roof covering, in particular overlapping roof tiles at the side edges of the roof without bedding the side edges of the roof covering in mortar.

To this end, and from one aspect, the present invention consists in a dry verge system, including a plurality of verge members each of which is generally of L-shape when considered in cross-section with the base of the L forming an upper portion which is adapted to rest on the upper surface of a side edge of a roof covering and with the leg of the L forming a front portion which, when considered in front elevation, has opposite end regions forming complementary male and female portions respectively which are provided with respective apertures therein so that the male portions can be engaged in the female portions of adjacent ones of the verge members in overlapping relationship, with the apertures of the male and female portions of the adjacent overlapping verge members in alignment, and a plurality of lug members each of which is adapted to co-operate with the aligned apertures of the adjacent overlapping verge members to secure the verge members to one another.

By means of the interengaging apertured male and female portions of the verge members and the lug members, a dry verge can be simply and easily assembled at a side edge of a roof covering.

In order to provide for left and right-hand roof side edges, verge members of mirror image shape are conveniently provided i.e. left and right-hand verge members.

To facilitate securing of the verge members to the roof structure, each verge member is preferably provided with one or more nail holes, in the front portion thereof.

Advantageously, the apertures are in the form of slots extending in the direction of the front portions of the verge members to enable the positions of the verge members to be adjusted relative to each other so as easily to accommodate any variations in the laying of the course of roof tiles. This adjustment facility is of particular advantage because in some systems known to the Applicants the verge members cannot be adjusted relative to each other without removing portions from the verge members.

Each lug member is preferably provided with a resilient clip-like member which engages behind the overlapping verge members and which facilitates fitting of the lug members in the aligned apertures.

Preferably also the clip-like member is joined by an intermediate member to a strip portion of greater length and width, and extending at rightangles to the clip-like member and which covers the aligned apertures when the clip-like member is inserted therethrough, and turned through 90 .

In a preferred embodiment of the invention, the female portion of each verge member is formed by a rearwardly facing recess in a raised area of the outer surface of the front portion so that the front portions of the adjacent overlapping verge members will be closely adjacent one another.

Advantageously, the apertures in the female portions are formed in rebates in the raised areas, to reduce the thickness of the lug members and provide for greater ease of location of the lug members in the aligned apertures with the rebates accommodating the strip portions of the lug members.

In order to provide for ventilation of the verge, the undersurfaces of the front portions may be provided with one or more spacer members so that the rear surfaces of the front portions are spaced from the longitudinal edges of the roofing tiles at the side edges of the roof and from the roof timbers such as the barge board and roof ends of the roof battens to enable a flow of air through the gap between the front portions of the verge members and the roof covering and the roof felt.

Preferably, the ventilated dry verge system includes a filler member for occupying the gap between the building wall and the verge members, said filler member being generally of L shape and with the base of the L have at least one aperture which can be aligned with the apertures in the male and female portions of the overlapping verge members so that the lug members can be passed therethrough with the filler member also being apertured, e.g. of comb-like shape to provide for a flow of air therethrough into the roof space.

From another aspect, the present invention consists in a roof structure having a dry-verge system extending along at least one of the right and lefthand sides of the roof comprising a plurality of any of the verge members as defined above and secured to one another in overlapping relationship by means of said lug members and with the upper portions of the verge members resting on the upper portions of the roofing tiles.

Preferably, the verge members and the lug members, and, if provided, the filler members are made of a suitable plastics material, formed for example by injection moulding although, of course, other materials such as concrete can be used for the verge members and the lug members could be made of a metal such as aluminium.

In order that the invention may be more readily understood, reference will now be made to the accompanying drawings, in which: Figure l is a front elevation of a verge member constructed in accordance with this invention, Figure 2 is a plan view of the two verge members shown in Figure 3.

Figure 3 shows end views of left-hand and righthand verge members of which the right-hand verge member is that of Figures 1 and 2.

Figures 4 to 6 are plan, side and end views of a lug member for use in securing adjacent ones of the dry-verge members of Figures 1 to 3 in overlapping relationship, Figure 7 is a side elevation of two of the verge members of Figures 1 and 2 secured in overlap ping relationship by means of the lug member shown in Figures 4 to 6, and Figures 8 and 9 are a cross-section through one side of a roof having a roof covering of overlapping roofing tiles, the verge members secured thereto in overlapping relationship, and a detail view of Figure 8 respectively.

Referring to Figures 1 to 3 of the drawings, the verge member 1 is made of a suitable plastics material such as polyvinyl chloride, polypropylene or polyethylene e.g. by injection moulding, and has a length which corresponds to that of a roofing tile.

The verge member 1 is of elongate form and generally of L shaped cross-section when considered in cross-section as will be apparent from Figure 3.

In use, the verge member 1 is inverted with the base of the L forming an upper portion 2 and the leg of the L forming a front portion 3 which depends from the upper portion 2. The portion 2 is adapted to extend over the upper portions of the laid courses of overlapping contoured roofing tiles 4 (see Figure 8). In order to guard against the ingress of wind driven water into the gap between the verge member 1 and the side edge of the roof the upper portion is provided with a longitudinally extending lip 6 which abuts against the side of the upper portions 5 of the roofing tiles.It should be appreciated that other shapes will be adopted for the upper portion 2 with other forms of tiles so as to obtain a suitable engagement therewith, for example with plain tiles the lip portion 6 may be omitted or a smaller lip replace the lip portion 6, and with contoured "bold roll" type roofing tiles the upper portion may be curved and include a similar lip portion 6 which is also curved. The lip portion 6 may abut the pan of the tile if desired.

As will be appreciated from Figure 1, the lower edge 7 of the front portion 3 is inclined at an angle with respect to the upper edge 8 of the front portion 2 so that the verge member 1 is generally of tapered configuration when considered in front elevation to provide complementary male and female portions 9 and 10 formed by the opposite end regions of the front portion 3.

The female portion 10 is formed by a raised portion 11 of generally rectangular shape which is moulded integrally with the front portion 3 so as to define a recess 12 of the same or similar dimensions to those of the male portion 9 can be seen from the end view of Figure 3. The male and female portions 9 and 10 are provided with similar sized respective slots 13 and 14 extending in the direction of the front portion 3 with the slot 14 in the female portion being located in a rebate 15. At least one of nail holes 16 are provided in the male portion 9 through which nails may be driven to fix the verge member to tile battens 17 and counter battens 18 of the roof structure shown in Figure 8.

Referring now to Figures 4 to 6, these show a lug member 19 which is also conveniently injection moulded of a suitable plastics material, e.g. polyvi nylchloride, polypropylene or polyethylene. The lug member 19 comprises a resilient clip-like member 20 joined at right angles to a strip or flange portion 21 by an intermediate portion 22 in the form of a peg. Preferably, the clip-like member is chamfered as shown at 23 in Figure 4.

When adjacent verge members 1 are assembled with their male and female portions in engagement and with the slots 13 and 14 in alignment, as shown in Figure 7, these verge members are fixed to each other by the lug member 19 as follows.

The clip-like member 20 is aligned with the direction of the aligned slots 13, 14, pushed through the slots and turned through 90 so that the clip end portions 24 engage against the under surface of the male portion 9 with the strip portion 21 fitting into the rebate 15 to locate the lug member in position and covering the aligned slots 13, 14 to guard against the ingress rain water through the slots to the roof timbers. Instead of or in addition to either of the nail holes 16, the lug members 19 may be provided with a nail hole indicated by dashed line 25 extending through the intermediate portion 22.

For verge ventilation, and as more clearly indicated in Figure 3, each verge member 1 is provided with a plurality of spacer elements (only one shown) on each member extending in spaced apart relationship along its length as indicated by the dashed lines 26 in Figure 3. As will be apparent from Figure 8, the spacer members 26 engage with the counter batten to space the rear surface of the front portion 3 therefrom and permit a flow of air between the verge member and counter batten 18 and into the space 28 between the tiling 4 and roof felt 29 as shown in Figure 8.

Referring more particularly to Figures 8 and 9, Figure 8 shows two overlapping verge members 1 in end view secured by nails 27 to the tile batten 17 and counter batten 18 at the side edge of a roof structure 30. The verge members 1 are fixed to one another by the lug member 19 passing through the aligned apertures 13, 14 in the male and female portions. The spacer members 26 are not shown for reasons of clarity of illustration and the flow of ventilating air into the space 28 is shown by the arrowed chain line 31. The lug member 19 or adjacent lug member 19 also secure(s) an L-shaped in cross-section elongate filler member or ventilation grille 32 to the verge members 1 by the intermediate portion 22 passing through a slot 33 in the base 34 of the L with the clip portion 20 engaging with the rear surface of the base 34 as shown. The leg of the L comprises a plurality of flexible filaments 35 (Figure 9), like a comb with the free ends of the filaments engaging with the building wall 36. The gaps 37 between the filaments 35 and a spaced riser member 38 interposed between the counter batten 18 and the top brick of the wall 36 permit a flow of ventilating air into the roof space 39 as indicated by the arrowed chain line 40. The flexible filaments 33 permit the ventilation grille 32 to take up variations in distance of the wall 36 from the outer end of the counter batten 18. The ventilation grille 32 is preferably made of the same material as that of the verge member 1 advantageously a suitable plastics.

It will be appreciated that various modifications may be made to the dry verge system described without departing from the scope of the invention.

For example, the undersurface of the verge member 1 may be provided with integral tile engaging elements such as nibs or ridges 41, as shown in Figure 8, to avoid capilliary attracted water.

Claims

1. A dry verge system, including a plurality of verge members each of which is generally of Lshape when considered in cross-section with the base of the L forming an upper portion which is adapted to rest on the upper surface of a side edge of a roof covering and with the leg of the L forming a front portion which, when considered in front elevation, has opposite end regions forming complementary male and female portions respectively which are provided with respective apertures therein so that the male portions can be engaged in the female portions of adjacent ones of the verge members in overlapping relationship, with the apertures of the male and female portions of the adjacent overlapping verge members in alignment, and a plurality of lug members each of which is adapted to co-operate with the aligned apertures of the adjacent overlapping verge members to secure the verge members to one another.

2. A verge system as claimed in Claim 1, characterized in that the verge members comprise left and right-hand verge members.

3. A dry verge system as claimed in Claim 1 or 2, characterized in that each verge member is provided with one or more nail holes, in the front portion thereof, for use in securing the verge member to the roof structure.

4. A dry verge system as claimed in any one of Claims 1 to 3, characterized in that the apertures are in the form of slots extending in the direction of the front portions of the verge members to enable the positions of the verge members to be adjusted relative to each other.

5. A dry verge system as claimed in any one of Claims 1 to 5, characterized in that each lug member is provided with a resilient clip-like member which engages behind the overlapping verge members.

6. A dry verge system as claimed in Claim 5, characterized in that the clip-like member is joined by an intermediate portion to a strip portion of greater length and width, and extending at rightangles to the clip-like member and which covers the aligned apertures when the clip-like member is inserted therethrough, and turned through 90O.

7. A dry verge system as claimed in any one of Claims 1 to 6, characterized in that the female portion of each verge member is formed by a rearwardly facing recess in a raised area of the outer surface of the front portion so that the front portions of adjacent overlapping verge members will be closely adjacent one another.

8. A dry verge system as claimed in any one of Claims 1 to 7, characterized in that the apertures in the female portions are formed in rebates in the raised areas, to reduce the thickness of the lug members and provide for greater ease of location of the lug members in the aligned apertures, with the rebates accommodating the strip portions of the lug members.

9. A dry verge system as claimed in any one of Claims 1 to 8, characterized in that the undersurfaces of the upper portions are provided with roof covering engaging elements.

10. A dry verge system as claimed in any one of Claims 1 to 9, characterized in that the undersurfaces of the front portions are provided with one or more spacer members so that the rear surfaces of the front portions can be spaced from the longitudinal edges of the roof covering at the side edges of the roof and from the roof timbers, thereby to enable a flow of ventilating air through the gap between the front portions of the verge members and the roof covering and the roof felt.

11. A dry verge system as claimed in Claim 10, and further characterized by a filler member for occupying the gap between a building wall and the verge members, said filler member being generally of L shape, with the base of the L having at least one aperture which can be aligned with the apertures in the male and female portions of the overlapping verge members so that the lug members can be passed therethrough, with the filler member also being apertured to provide for a flow of ventilating air therethrough and into the roof space.

12. A dry verge system substantially as hereinbefore described with reference to Figures1 to 7 of the accompanying drawings.

13. A dry verge system substantially as hereinbefore described with reference to Figures 1 to 7 and Figure 9 of the accompanying drawings.

14. A roof structure having dry-verge system as claimed in any one of Claims 1 to 13, extending along at least one of the right and left-hand sides of the roof end comprising a plurality of said verge members secured to one another in overlapping relationship by means of said lug members and with the upper portions of the verge members resting on the upper surfaces of the roof covering.

15. A roof structure substantially as hereinbefore described with reference to Figure 8 of the accompanying drawings.