WO2017214642A1

WO2017214642A1 - A roofing sheet

Info

Publication number: WO2017214642A1
Application number: PCT/ZA2017/050034
Authority: WO
Inventors: Allen Thomas Friel
Original assignee: Allen Thomas Friel
Priority date: 2016-06-09
Filing date: 2017-06-08
Publication date: 2017-12-14
Also published as: AU2017278322A1; ZA201900054B

Abstract

According to the invention there is provided a roofing sheet (10) which includes a mounting component (12) interconnected with a covering component (14). In particular, the mounting component (12) includes a profile which includes a longitudinally extending base (16) shaped and configured to be fastened to a purlin (18) and a first side wall (20) extending from one side of the base (16). The mounting component (12) further includes a retaining means in the form of a first extension (22) extending from the first side wall (20) and a second side wall (24) extending from an opposing side of the base (16) and a receiving means in the form of a first clip formation (26) which extends from the second side wall (24). The covering component (14) includes a profile which includes a longitudinally extending valley (not shown) defined by a base (28) having a first side wall (30) and second (32) side wall extending from opposing sides of the base (28) and a second retaining means in the form of a second extension (34) extending from the first side wall (30) of the covering component (14) for receiving and retaining the first extension (22) of the mounting component (12) therein. The covering component (14) further includes a connecting member (36) extending from the second side wall (32) shaped and configured to receive a mounting component (12) and second extension (34) therein in an operative connected condition with an adjacent roofing sheet (38).

Description

A ROOFING SHEET

FIELD OF THE INVENTION

This invention lies in the field of roofing and refers in particular to a roof sheet profile.

SUMMARY OF THE INVENTION

According to the invention there is provided a roofing sheet which includes: - a mounting component which has a profile which includes: - a longitudinally extending base shaped and configured to be fastened to a roof sheet support structure; a first side wall extending from one side of the base; a first retaining means which extends from the first side wall; a second side wall extending from an opposing side of the base; and a receiving means which extends from the second side wall. a covering component which has a profile which includes:- a longitudinally extending valley defined by a base having first and second side walls extending from opposing sides of the base; a second retaining means extending from the first side wall of the covering component which is shaped and configured to receive and retain the first retaining means of the mounting component therein whilst permitting longitudinal displacement therebetween; and

l a connecting member extending from the second side wall which is shaped and configured to receive a mounting component and second retaining means therein in an operative connected condition with an adjacent roofing sheet.

The base of the mounting component may include a receiving means for receiving a fastening means therethrough. The receiving means may be in the form of apertures arranged at spaced intervals along the length of the base. The fastening means may be shaped and configured to fasten the base of the mounting component to a roof sheet support structure, typically a purlin. The fastening means may be in the form of, but not limited to, a securing screw. It is to be appreciated that the securing screw may increase the sheet's resistance to be removed from the purlin.

It is to be appreciated that the fastening of the base to the purlin may increase the strength and spanning capabilities of the roofing sheet.

The mounting component may range between 150 mm - 400 mm in length and between 0.4 - 5.0 mm in thickness. Typically, the mounting component is 230 mm in length and 0.8 mm in thickness. It is to be appreciated that increasing the thickness of the mounting component may provide a better spanning distance of purlin supports. The first and second side walls of the mounting component may extend substantially orthogonally from the base.

The first retaining means of the mounting component may be in the form of a first extension folded on itself to form a channel arranged substantially parallel the base when in an operative mounting condition. The retaining means may be folded to form two channels substantially parallel to each other.

The receiving means of the mounting component may be in the form of a first clip formation shaped and configured be received by the connecting member of the covering component.

The first and second side walls of the covering component may extend at a substantially obtuse angle from the base.

The second retaining means of the covering component may be in the form of a second extension folded on itself to form a channel arranged substantially parallel the base when in an operative mounting condition. The second extension may be folded so as to be received by the first retaining means of the mounting component and permit longitudinal displacement therebetween. It is to be appreciated that longitudinal displacement of the first retaining means of the mounting component and the second retaining means of the covering component relative to each other caters for thermal expansion that may occur and limits the amount of damage thermal expansion may cause to the roofing sheet.

The first retaining means of the mounting component and the second retaining means of the covering component may be separated by a separating member. The separating member may be in the form of an isolator. It is to be appreciated that the isolator may reduce any vibrations or sounds created during longitudinal displacement of the first retaining means of the mounting component and the second retaining means of the covering component.

The isolator may be manufactured from any suitable synthetic, plastics or metallic material.

The second retaining means of the covering component may include a second clip formation shaped and configured to be received by the connecting member.

The connecting member of the covering component may include a first clip formation receiving portion for receiving a first clip formation of a mounting component of an adjacent sheet. The connecting member may include a second clip formation receiving portion for receiving a second clip formation of a second retaining means of the adjacent sheet. It is to be appreciated that the connecting member may receive the mounting component and second retaining means of the covering component of the adjacent sheet in a snap-fit engagement.

The covering component may range between 300 mm - 700 mm in length and between 0.3 mm - 3 mm in thickness. Typically, the covering component is 550 mm in length and 0.5 mm in thickness.

The covering component and the mounting component may be manufactured from any suitable synthetic, plastics or metallic material, typically aluminium.

In a further embodiment of the invention, the second clip formation receiving portion of the connecting member and the second clip formation of a second extension of an adjacent sheet may be folded to form a receiving zone. The receiving zone may be shaped and configured to receive a securing member. The securing member may be inserted into the receiving zone to secure the snap-fit engagement of the connecting member and the second clip formation and inhibiting unclipping of the second clip formation from the second clip formation.

The securing member may be manufactured from any suitable synthetic, plastics or metallic material. DETAILED DESCRIPTION OF THE INVENTION

A roofing sheet in accordance with the invention will now be described by way of non-limiting examples, with reference to the accompanying drawings herebelow.

In the drawings:-

Figure 1 shows a schematic representation of a profile of a roofing sheet of the invention;

Figure 2 shows a schematic representation of a profile of a mounting component of the roofing sheet;

Figure 3 shows a schematic representation of a profile of a part of a covering component of the roofing sheet;

Figure 4 shows an enlarged view of a portion of the roofing sheet shown in Figure 1 ;

Figure 5 shows an enlarged view of a portion of the roofing sheet in an operative mounted condition on a purlin;

Figure 6 shows an enlarged schematic representation of a portion of roofing sheets in an operative interconnected condition, a connecting member shaped and configured to receive a mounting component and second retaining means of a covering component of an adjacent roofing sheet therein; Figure 7 shows a schematic representation of the connecting member angled to snap fit over the mounting component and second retaining means of the covering component of the adjacent roofing sheet;

Figure 8 shows a schematic plan view of roofing sheets in an operative interconnected condition;

Figure 9 shows an enlarged schematic representation of a portion of further roofing sheets of the invention in a mounted condition; and

Figure 10 shows a schematic representation of a profile of another embodiment of the invention with a securing member.

Referring now to the drawings, a roofing sheet in accordance with the invention, is generally indicated by reference numeral 10.

According to the invention there is provided a roofing sheet 10 which includes a mounting component 12 interconnected with a covering component 14.

In particular, the mounting component 12 includes a profile which includes a longitudinally extending base 16 shaped and configured to be fastened to a purlin 18 and a first side wall 20 extending from one side of the base 16. The mounting component 12 further includes a retaining means in the form of a first extension 22 extending from the first side wall 20 and a second side wall 24 extending from an opposing side of the base 16 and a receiving means in the form of a first clip formation 26 which extends from the second side wall 24. The covering component 14 includes a profile which includes a longitudinally extending valley (not shown) defined by a base 28 having a first side wall 30 and second 32 side wall extending from opposing sides of the base 28 and a second retaining means in the form of a second extension 34 extending from the first side wall 30 of the covering component 14 for receiving and retaining the first extension 22 of the mounting component 12 therein. The covering component 14 further includes a connecting member 36 extending from the second side wall 32 shaped and configured to receive a mounting component 12 and second extension 34 therein in an operative connected condition with an adjacent roofing sheet 38.

The base 16 of the mounting component 12 includes a receiving means in the form of apertures 40 arranged at spaced intervals along the length of the base 16 for receiving a fastening means in the form of a securing screw 42 therethrough. The securing screw 42 fastens the base 16 of the mounting component 12 to a purlin 18.

The first side wall 20 and second side wall 24 of the mounting component 12 extend orthogonally from the base 16.

The first extension 22 of the mounting component 12 is folded on itself to form a channel 44 arranged substantially parallel the base 16 in an operative mounting condition. The first extension 22 is arranged to form two channels 46 substantially parallel to each other. The first clip formation 26 of the mounting component 12 is shaped and configured to be received by the connecting member 36 of the covering component 14.

The first side wall 30 and second side wall 32 of the covering component 14 extend at a substantially obtuse angle from the base 28. Typically, the first 30 and second 32 side walls of the covering component 14 are arranged to extend 109° away from the base 28 which defines a longitudinally extending valley.

The second extension 34 of the covering component 14 is folded on itself to form a channel 48 arranged substantially parallel the base 28 in an operative mounting condition. The second extension 34 is folded so as to be received by the first extension 22 of the mounting component 12 and permit longitudinal displacement therebetween.

The first extension 22 of the mounting component 12 and the second extension 34 of the covering component 14 are separated by an isolator (not shown) in the event that one of the extensions (22 or 34) is manufactured from a composition different to the other extension, such as for example aluminium and galvanised steel, whereby the isolator, made from any suitable synthetic, plastics or metallic material, typically plastic, would serve to separate the first extension 22 of the mounting component 12 and the second extension 34 of the covering component 14. The second extension 34 of the covering component 14 includes a second clip formation 50 shaped and configured to be received by the connecting member 36.

The connecting member 36 includes a first clip formation receiving portion 52 for receiving a first clip formation 26 of a mounting component 12 of an adjacent sheet 38. The connecting member 36 includes a second clip formation receiving portion 54 for receiving a second clip formation 50 of a second extension 34 of the adjacent sheet 38. The connecting member 36 receives the mounting component 12 and second extension 34 of the covering component 14 of the adjacent sheet 38 in a snap-fit engagement.

Figure 8 shows the use of roofing sheets 10 fixed transversely and directly to the rafters 56 extending from a boundary wall 58. The direction 60 the roof sheets are laid from the eaves (not shown) is against the direction 62 of the fall of the roof plain (not shown).

In another embodiment of the invention, as shown in Figure 10, the second clip formation receiving portion 154 of the connecting member 136 and the second clip formation 150 of a second extension 134 of an adjacent sheet 138 are folded to form a receiving zone 1 15. The receiving zone 1 15 is shaped and configured to receive a securing member 1 17. The securing member 1 17 is inserted into the receiving zone 1 15 to secure the snap-fit engagement of the connecting member 136 and the second clip formation 150. In use, as can been seen in Figure 7, a roofing sheet 10 is held at an angle to an adjacent roof sheet 38, that has been fastened to the purlin 18, so as to allow the mounting component 12 and second extension 34 of the covering component 14 to be complementally received by the roofing sheet 10 in a snap fit engagement. Once overlapping has occurred the first roofing sheet 10 is laid down and fastened to the purlin 18 with a securing screw 42. A user continues to overlap the roof sheets 10 until an entire roof support structure has been covered by the overlapping roof sheets 10. Due to the overlapping of the roof sheets 10, the fastening of the base 16 to the purlin 18 is concealed which eliminates possible leakages that may occur.

Although only certain embodiments of the invention have been described herein, it will be understood by any person skilled in the art that other modifications, variations, and possibilities of the invention are possible. Such modifications, variations and possibilities are therefore to be considered as falling within the spirit and scope of the invention and hence form part of the invention as herein described and/or exemplified. It is further to be understood that the examples are provided for illustrating the invention further and to assist a person skilled in the art with understanding the invention and is not meant to be construed as unduly limiting the reasonable scope of the invention.

The inventor regards it as an advantage that the invention provides an elegant solution to thermal expansion and contraction experienced by overlapping roof sheets once assembled by the longitudinal displacement of the mounting component and covering component. The inventor regards it as a further advantage that the valley of the invention provides a greater water drainage area. The inventor regards it as yet a further advantage whereby damaged sheets in the middle of a roof can be easily replaced with a new roof sheet. The inventor regards it as an advantage that the invention greatly increases the loading strength of roof profile with greater spanning capabilities and resistance to removal from the roof sheet supporting structure.

Claims

1 . A roofing sheet which includes: - a mounting component which has a profile which includes: - a longitudinally extending base shaped and configured to be fastened to a roof sheet support structure; a first side wall extending from one side of the base; a first retaining means which extends from the first side wall; a second side wall extending from an opposing side of the base; and a receiving means which extends from the second side wall. a covering component which has a profile which includes:- a longitudinally extending valley defined by a base having first and second side walls extending from opposing sides of the base; a second retaining means extending from the first side wall of the covering component which is shaped and configured to receive and retain the first retaining means of the mounting component therein whilst permitting longitudinal displacement therebetween; and a connecting member extending from the second side wall which is shaped and configured to receive a mounting component and second retaining means therein in an operative connected condition with an adjacent roofing sheet.

2. A roofing sheet as claimed in claim 1 , wherein the base of the mounting component includes a receiving means for receiving a fastening means therethrough.

3. A roofing sheet as claimed in claim 2, wherein the receiving means is in the form of apertures arranged at spaced intervals along the length of the base.

4. A roofing sheet as claimed in claim 2 or 3, wherein the fastening means is shaped and configured to fasten the base of the mounting component to a roof sheet support structure.

5. A roofing sheet as claimed in any one of claims 2 to 4, wherein the fastening means is in the form of a securing screw.

6. A roofing sheet as claimed in any one of claims 1 to 5, wherein the mounting component ranges between 150 mm - 400 mm in length and between 0.4 - 5.0 mm in thickness, typically 230 mm in length and 0.8 mm in thickness.

7. A roofing sheet as claimed in any one of claims 1 to 6 , wherein the first and second side walls of the mounting component extend substantially orthogonally from the base.

8. A roofing sheet as claimed in any one of claim 1 to 7, wherein the first retaining means of the mounting component is in the form of a first extension folded on itself to form a channel arranged substantially parallel the base when in an operative mounting condition.

9. A roofing sheet as claimed in any one of claims 1 to 8, wherein the retaining means is folded to form two channels substantially parallel to each other.

10. A roofing sheet as claimed in any one of claims 1 to 9, wherein the receiving means of the mounting component is in the form of a first clip formation shaped and configured be received by the connecting member of the covering component.

1 1. A roofing sheet as claimed in any one of claims 1 to 10, wherein the first and second side walls of the covering component extend at a substantially obtuse angle from the base.

12. A roofing sheet as claimed in any one of claims 1 to 1 1 , wherein the second retaining means of the covering component is in the form of a second extension folded on itself to form a channel arranged substantially parallel the base when in an operative mounting condition.

13. A roofing sheet as claimed in any one of claims 1 to 12, wherein the second extension is folded so as to be received by the first retaining means of the mounting component and permit longitudinal displacement therebetween.

14. A roofing sheet as claimed in any one of claims 1 to 13, wherein the first retaining means of the mounting component and the second retaining means of the covering component are separated by a separating member.

15. A roofing sheet as claimed in claim 14, wherein the separating member is in the form of an isolator.

16. A roofing sheet as claimed in claim 15, wherein the isolator is manufactured from any suitable synthetic, plastics or metallic material. the second retaining means of the covering component includes a second clip formation shaped and configured to be received by the connecting member.

18. A roofing sheet as claimed in any one of the preceding claims, wherein the connecting member of the covering component includes a first clip formation receiving portion for receiving a first clip formation of a mounting component of an adjacent sheet.

19. A roofing sheet as claimed in any one of the preceding claims, wherein the connecting member includes a second clip formation receiving portion for receiving a second clip formation of a second retaining means of the adjacent sheet.

20. A roofing sheet as claimed in any one of the preceding claims, wherein the connecting member receives the mounting component and second retaining means of the covering component of the adjacent sheet in a snap-fit engagement.

21. A roofing sheet as claimed in any one of the preceding claims, wherein the covering component ranges between 300 mm - 700 mm in length and between 0.3 mm - 3 mm in thickness, typically 550 mm in length and 0.5 mm in thickness.

22. A roofing sheet as claimed in any one of the preceding claims, wherein the covering component and the mounting component are manufactured from any suitable synthetic, plastics or metallic material, typically aluminium.

23. A roofing sheet as claimed in any one of the preceding claims, wherein the second clip formation receiving portion and the second clip formation of a second extension of an adjacent sheet are folded to form a receiving zone.

24. A roofing sheet as claimed in claim 23, wherein the receiving zone is shaped and configured to receive a securing member.

25. A roofing sheet as claimed in claim 24, wherein the securing member is inserted into the receiving zone to secure the snap-fit engagement of the connecting member and the second clip formation to inhibit unclipping of the connecting member from the second clip formation.

26. A roofing sheet as claimed in claim 24 or claim 25, wherein the securing member is manufactured from any suitable synthetic, plastics or metallic material.

27. A roofing sheet according to the invention substantially as hereinbefore described or exemplified.

28. A roofing sheet as specifically described with reference to or as illustrated in any one of the accompanying drawings.

29. A roofing sheet including any new and inventive integer or combination of integers substantially as herein described.