AU2010202123B2 - Building construction elements - Google Patents

Abstract

A roof batten forming sheet for a roofing system for a building, the building including a plurality of spaced apart rafters, the roof batten forming sheet including a base panel section which includes opposed side edge portions, at least one of the side edge portions 5 being configured so as to at least in part form a roof batten for retaining roofing thereon. 2283681i1 (GHMatters)

Description

BUILDING CONSTRUCT ON ELEMENTS This disclosure relates generally to roofing systems for buildings and components therefor. Summary 5 According to one aspect of the present disclosure there is provided a soffit support adapted to extend from a rafter overhang to a building structure, wherein the soffit support comprises an extendable member and has an outer end arranged to receive a fascia locatable over an end of the rafter overhang, and an underside that provides a 10 fixing surface for mounting an leave soffit. In some forms, the outer ernd of the soffit support is hooked and the fascia locates over, and is retained in, the hooked end. In some forms the building structure is a stud wall, In some forms, the extendable member comprises a first body portion and a second 15 body portion, the second body portion able to mo ve relative to the first body portion in use to change the overall length of the extendable member. In some forms, the second ody portion telescopingly connects to the first body portion. 20 In some forms, the soffit sport is able to be adjusted so as to allow for correct mounting of the fascia and prior to being fixed to the building structure. According to a second asp t of the present discl sure there is provided an assembly for fixing a fascia to a building structure comprising: a soffit support according to 25 embodiments of the first aspect of the present disclosure; and a fascia formed from sheet material and incorporating first and second ends, the second end being arranged to be connected to the outer e d of the soffit support. 30 In some forms, the first end is arranged to be connected to a roof batten, 4-M49AC0. (OHMater,) PS)6!.AU.2 2 Brief Description of Drawings Illustrative embodimen will now be described by way of example with reference to the accompanying dra wigs, in which: 5 Figure 1 is a side or sect or view of a portion of a building construction; Figure 2 is an isometric iew of another embodiment of a roof batten forming sheet for a roofing system; Figure 3 is an isometric vie w of a third embodiment of a roof batten forming sheet for a roofing system; 10 Figure 4 is a sectional view of a fourth embodiment of a roof batten forming sheet for a roofing system; Figure 5 is a side elevation of an embodiment of a roofing system; Figure 6 is a side elevation of a section of guttering showing an embodiment of the soffit support or leave support; 15 Figure 7 is a plan view of t1 e section of guttering of Figure 6; Figure 8 is a side elevation >f a rafter with a portion of an embodiment of a starter batten mounted thereon; Figure 9 is a side elevation >f a rafter showing a section view of an embodiment of a fascia panel; 20 Figure 10 is an exploded view of the circled portion of the fascia panel of Figure 9; and Figures 11 to 14 are various illustrations of further embodiments of roofing systems. 4242674(Millem) P633* AU,2 3 In Figure 1 there is shown a rafter 10 overhanging a timber wall stud 11 and external brick wall 12 of a brick vereer building. An extendible soffit support 13 is nailed to stud 11 at location 14 and to rafter 10 at location 15. Each of locations 14 and 15 can be provided as integrally formed gang nail 5 plates, where support 13 is made of metal, so that support 13 can be readily nailed, screwed or gang nailed to stud 11 and rafter 10. The underside of support 13 provides a fixing surface for mounting an cave soffit. Atop rafter 10 there are mo nted adjacent batten forming sheets or plates 20. Each plate 20 is formed with ribs 21 pressed into the planar plate section 22 to increase the rigidity 10 of the sections of plate 20 that span between adjacent rafters 10. rn the embodiments of Figures 2, 3, and 4 the planar sections 22 of each plate 20 are depicted, for clarity, without stiffening ribs 21 or an equivalent means for increasing the rigidity of sections 22. At the upper and lower extremities of plate 20 as shown in Figure 1, the metal of the is plate has been shaped at 23 and 24, respectively, to form at least part of a transverse batten spanning between adjacent rafters and adapted to hold a tile (not shown) or roofing sheets (not shown) laid on the roof. In the embodiment of Figure 2 only one extremity 25 is shaped as a batten while in Figures 3 and 4 each of opposite extremities 23, 24 is, at least in part, forming a batten 20 which is completed when ai adjacent plate 20 are fitted together as shown in Figures 1 3. Telescoping soffit support or cave support 13 of Figure 5 is identical with the embodiment shown in Figure 1 with telescoping section indicated by 13'. An additional interaction between support 13 and plate 20 is shown in Figure 1 where a metallic or 2 B similar facia panel 40 is mounted therebetween. Facia panel 40 is adapted to clip onto hook portion 16 of support 13 and under portion 24 of lowermost plate 20 and hook onto starter batten/fascia clip 25. 4242867.4 (W4MhflROM PUM3O.AU, 4 Figures 6 and 7 show an embodiment where a gutter leaf guard in the form of planar rectangular plate portion 30 is hingedly mounted at 31 in transverse ribs 32 spanning opening 33 of guttering 37. Each plate 30 is formed with stopper plates 34 which contact ribs 32 to restrict rotational movement of plate 30. The pivot axis 35 is 5 asymmetrically positioned, toward the rear 36 of guttering 37, through plate 30 so that plate 30 imparts a turning moment about hinge line 35 to bias plate 30, such that stops 34 contact the underside of respective ribs 32. Under dry weather conditions plate 30 covers opening 33 as shown in Figures 6 and 7 so that leaf litter and the like accumulate on the top surface of plate 30 and can be 10 readily blown or brushed off that plate. When rain falls water flows off a roof (not shown) and onto the part of plate 30 nearest the rear 36 of guttering 37. The weight of water flowing onto the re ar of plate 30 adds weight to the rear of plate 30 to overcome the turning moment due Io the weight of plate 30 between hinge line 35 and the front of guttering 37. The effect c f this is to move the stops 34 away from contact with ribs 32 is to allow water to flow in o gutter opening 33. Figure 8 shows a rafter 1 with a starter batten 25 of the kind employed in the embodiment of Figure 1. As viewed in Figure 1, starter batten/fascia clip 25 forms part of the lowermost roof batten 24 while also functioning as a hook or clip to secure the top of fascia panel 40. 20 Detail of fascia panel 40 s shown in Figure 9 where complementary hook portion 41 clips over starter batten/f scia clip 25. On the front face of panel 40 there is a gutter clip 42 which is shown in bett r detail in Figure 10 as well as ribs 43 to hold guttering, when mounted on the fascia panel, out of contact with panel 40 and under the gripping action of gutter clip 42. 25 Gutter clip 42 includes gr pping teeth or ribs 44 which facilitate mounting a run of guttering at different heig ts along the fascia to achieve a desired fall angle for good drainage by the length of guttering so mounted. 42467_4 (GHMeners) PIM.AU.2 5 Figure 11 is a schematic side elevation of a further embodiment of a roofing system according to the present disclosure. The same reference numerals have been used to identify similar parts as described with reference to the earlier embodiments, The batten forming sheets 20 are mounted to spaced apart rafters 10 as described 5 earlier. In this particular embodiment the batten forming edge portions 23 and 24 are generally in the form of an inverted Vee but with a flat bottom. The edge portions 23 and 24 are complementary in shape so that they can nest together when two sheets are disposed side by side. The sheets 20 may be arranged so that at the first coupling section the edge portion 23 of the lower sheet nests within edge portion 24 of the next 10 sheet and then the edge portion 23 of that next sheet overlies the edge portion 24 of the following sheet. In the embodiment of Figure l Ithe starter batten 25 is formed integral with the lower most sheet 20. The starter batten 25 includes an outer wall 28 arranged so as to form a channel 27 on the outer side of edge portion 24. The outer wall 28 has an inwardly 15 extending flange at its upper free edge to which fascia can be mounted. Figure 12 is a schematic side elevation of a further embodiment of soffit support 13 in a mounted position on a building structure. As shown the soffit support 13 has two body portions 13' and 13" which can move relative to one another so that the overall length of the body can be adjusted. A flange 15 enables the soffit support 13 to be secured to the 20 rafter 10 and a flange 17 enables the soffit support 13 to be secured to the building frame 11. A fitting 16 is adapted to receive the fascia. Figure 13 is a schematic side elevation of the roof system including the soffit support shown in Figures 11 and 12. Figure 14 is a similar view to that of Figure 13 but showing the fascia 40 in the 25 mounted position. Where the battens are to be used for supporting tiles the side edge portion 24 of the lower most sheet is larger than the other edge portions thereby forming a bellcast. This A26M4 (OHMarers) POSse.AU,2 6 is not necessary in the case where the battens are to be used for supporting roofing in the form of sheeting, ingles or slate. The channel 27 forms a stormwater channel to provide for control of water run-off in addition to the normal guttring. The assembly also inhibits the entry of vermin to the s cavity of the roof of th building, The assembly also acts as a barrier to fire inhibiting the ingress of embers i to t e roof cavity. Throughout this speci cation and the claims which follow, unless the context requires otherwise, the word" mprise", and variations such as "comprises" or "comprising", will be understood to i ply the inclusion of a stated integer or step or group of integers 10 or steps but not the exc usion of any other integer or step or group of integers or steps. The reference to any pr or art in this specification is not, and should not be taken as, an acknowledgment or an form of suggestion that the prior art forms part of the common general knowledge in A stralia, Finally, it is to be under tood that the inventive concept in any of its aspects can be is incorporated in many di ferent constructions so that the generality of the preceding description is not to be s perseded by the particularity of the attached drawings. Various alterations, modifications and/or additions may be incorporated into the various constructions and arrang ents of parts without departing from the spirit or ambit of the invention. 20 621L27_4 (GHMILers) P33O .AU.2 7 Finally, it is to be understood that the inventive concept in any of its aspects can be incorporated in many diff-rent constructions so that the generality of the preceding description is not to be su 3erseded by the particularity of the attached drawings, Various alterations, modifications and/or additions may be incorporated into the various 5 constructions and arrange ents of parts without departing from the spirit or ambit of the invention. 42426L2 (GHMettwre) PMA#.AU.I

Claims (8)

1. A soffit support adapted to extend from a rafter overhang to a building structure, wherein the soffit support comprises an extendable member and has an outer end 5 arranged to receive a fascia locatable over an end of the rafter overhang, and an underside that provides a fixing surface for mounting an eave soffit,

2. A soffit support according to claim 1, wherein the outer end of the soffit support is hooked and the fascia locates over, and is retained in, the hooked end. 10

3, A soffit support according to claim 1 or 2, wherein the building structure is a stud wall.

4. A soffit support according to any one of the preceding claims, wherein the 15 extendable member comprises a first body portion and a second body portion, the second body portion able to move relative to the first body portion in use to change the overall length of the extendable member,

5. A soffit support according to claim 4, wherein the second body portion 20 telescopingly connects to the first body portion,

6. A soffit support as defined in any one of claims 3 to 5, wherein the soffit support is able to be adjusted so as to allow for correct mounting of the fascia and prior to being fixed to the building structure. 25

7. An assembly for fixing a fascia to a building structure comprising: a soffit support as defined in any one of claims 1 to 6; and a fascia formed from sheet material and incorporating first and second ends, the second end being arranged to be connected to the outer end of the soffit support. 30 43049SV (OH~mr) PB)6SAU.2 8

8. An assembly for fixing a fascia to a building structure according to claim 7, wherein the first end is arranged to be connected to a roof batten.

442687.4 (GHMalem) PGSSE.AUW.2