NL2014469A

NL2014469A - Roof profile.

Info

Publication number: NL2014469A
Application number: NL2014469A
Authority: NL
Inventors: Van Der Veeke Peter
Original assignee: Van Der Veeke Peter
Priority date: 2015-03-17
Filing date: 2015-03-17
Publication date: 2016-10-10
Also published as: NL2014469B1; EP3070226B1; EP3070226A1

Abstract

The present invention is in the field of renovation of substantially flat roofs with a bituminous coating. Bituminous coating or also referred to as waterproofing system is for protection of residential and commercial buildings from environmental influences, and in particular from rain water. In particular an improved roof profile for renovation and an improved method making use of said roof profile of renovating a roof with a bituminous coating are provided

Description

Roof profile

FIELD OF THE INVENTION

The present invention is in the field of renovation of substantially flat roofs with a bituminous coating.

BACKGROUND OF THE INVENTION

The present invention is in the field of renovation of substantially flat roofs with a bituminous coating. Bituminous coating or also referred to as waterproofing system is for protection of residential and commercial buildings from environmental influences, and in particular from rain water. Bitumen (asphalt) is typically a mixed substance made up of organic liquids that are highly sticky, viscous, and waterproof. The term "bitumen" typically refers to asphalt like materials, but also to more advanced materials, such as modified bitumen which is mixed with filler components such as polymers. These polymers improve characteristics of the bitumen. For instance atactic polypropylene (APP) gives rigidity and tear resistance whereas styrene-butadiene styrene (SBS), a rubber additive, gives more elastic benefits. Roll roofing is a bitumen product that is typically applied on roofs. To protect it from ultraviolet degradation typically mineral granules are added on top of a felt thereof, which also decreases the fire vulnerability. A thin, transparent film may be added to the base of the felt during manufacturing on all torch-on products. This stops the felt from sticking to itself when rolled up during the packaging process.

There are various reasons to use a bituminous coating. It protects the roof deck from rain before the roofing is installed; it provides an extra weather barrier in case of blowoffs or water penetration through the roofing or flashings; it protects the roofing from any resins that bleed out of the sheathing; etc. Nowadays the bituminous coating has a life time of about 10 years (low grade) to 20-40 years (high grade). At the end, preferably a bit before, the bituminous coating is removed and replaced.

When removing the old bituminous coating it is difficult if not impossible to remove a part thereof close to the raised edge of the roof. In order to remove the bituminous coating often brute force is applied, leading to damage of the roof edge and sometimes also of the brick and roof construction. The removal is also time consuming and therefore costly. As renovation of a roof is typically performed under a time constraint, renovators may be inclined to go for a quick and dirty approach, possibly leading to even more damage. A side issue, which is however often encountered when renovating, is that a roof edge is especially vulnerable for wear cause by water; such may be due to warping or settling of the roof construction and bituminous coating, wear of the bituminous coating, and of weather influences such as frost and heat, on the coating. As a result the roof edge and supporting construction may be affected and even be decayed, at least partially. Inherently such may occur due to the construction of the roof in combination with the bituminous coating. Hence, care should be taken to apply the coating properly.

The present invention therefore relates to an improved roof profile for renovation and an improved method making use of said roof profile of renovating a roof with a bituminous coating, which solves one or more of the above problems and drawbacks of the prior art, providing reliable results, without jeopardizing functionality and advantages.

SUMMARY OF THE INVENTION

The present invention relates to a roof profile according to claim 1 and to a method of renovation of a bituminous coating on a roof according to claim 12.

The present roof profile is especially designed to be applied directly and without much effort to an existing roof, the roof still partly having an older bituminous coating or the like. For production reasons the roof profile may have a standard length, such as 250 cm, 200 cm, 100 cm, etc., a standard height, such as 75 mm and 95 mm, and a standard width. The roof profile is typically made of a readily available, not too expensive, and suitable material, typically of a single material. In view of appearance a metal profile is often considered.

An imported aspect of the present profile is the receiving section. The receiving section covers the bituminous coating that remains on the roof at least partially and further receives a freshly applied new bituminous coating. As these coating are typically applied using heat, such as by using a burner, the profile is typically of a heat resistant material, such as a metal. The receiving section should be large enough to ensure a waterproof sealing between the present profile and the bituminous coating after application thereof, which sealing should remain intact over the life time of the coating.

The present roof profile further has an oblique section for draining rain water and the like under gravitational force .

For applying the present profile in a secure manner to the roof a U-shaped part is provided. This U-shaped part is typically clamped on a side of the roof. In addition it may be fastened to the roof and/or to a wall supporting the roof, although this option is less preferred and typically not required. The U-shaped profile provides at least some clamping action, due to its curved nature. In addition to securing the present profile by applying the bituminous coating a robust and durable final structure can be obtained.

In a second aspect the present invention relates to a method of renovation of a bituminous coating on a roof. In the method the present roof profile can be applied directly to a side of the roof, without a need for removing a bituminous coating (50) being present at said side of the roof, and thereafter applying a new bituminous coating (60) to the roof, the coating covering a receiving section (10) of the profile.

With the present method and profile a watertight sealing of the roof edge (and likewise of the roof) with a bituminous coating is provided, without a need for removing an existing old coating at in particular a roof edge section thereof. The present method and profile provide an easy and ready to use, and therefore quick, way of renovating a roof, without a risk of damage of a roof edge and the like, and still providing a durable sealing of the roof. There is no longer a need to demolish a roof edge, no loose stones or the like result from removing an old coating, less material is consumed, no edge section of bituminous material is required, no water can penetrate in the roof edge, less waste is produced, a risk of fire is diminished, no refurbishing and painting of a roof edge is required, and the profile levels the roof surface by itself.

Thereby the present invention provides a solution to one or more of the above mentioned problems and drawbacks, without jeopardizing beneficial effects.

Advantages of the present description are detailed throughout the description.

DETAILED DESCRIPTION OF THE INVENTION

The present invention relates in a first aspect to a roof profile according to claim 1.

In an example the present profile is formed from a plate, preferably a single plate. Such provides for an easy and cheap way of producing the profile, especially in view of standard plate material that can be used. The production can be simplified even further as only bending of the plate is required, in order to obtain the present profile. It is therefore preferred to use a single plate of adequate length and width, or first obtain adequate sections thereof, such as by cutting.

In an example the present profile has a thickness (t) from 1-5 mm, preferably 2-3 mm. Such a thickness is considered sufficient to provide rigidity, clamping action, and body, especially for the receiving section. The thickness may be in line with standard available plate material, which in view of production costs and simplicity is a further advantage.

In an example the present profile is formed from a metal, such as stainless steel, aluminum, steel, or from a thermoset plastic. These materials typically have suitable characteristics .

In an example the present profile the length (1) is from 20-300 cm, such as from 50-250 cm, e.g. 100 cm, 200 cm, etc. For a corner section a minimal length considered is 50 cm, from a practical point of view a length is not larger than that can be handled by a single individual.

In an example the present profile the height (h) is from 5-15 cm, such as 75 mm, 95 mm. The height is typically in line with standard roof edge profiles.

In an example the present profile the width (w) is from 2-20 cm. The width is typically in line with standard roof edge profiles.

In an example the present profile a width (ws) of the support part (31) is from 0.5-2,5 cm, such as 1-2 cm, e.g. 1.5-1.7 cm. The support part can be relatively small. The support part may be at an angle relative to the longer side of the U-shaped part, such as at an angle of 30-60°, e.g. 45°.

In an example the present profile a width (wG) of the oblique section (20) is from 10-30 mm, such as 15-25 mm. The oblique section typically has a width in line with standard roof edge profiles.

In an example the present profile the width (wr) of the receiving section (10) is from 10-70 mm, such as 20-50 mm, such as 30-40 mm.

In an example the present profile the oblique section is at an angle of 20-80° relative to the receiving section (10), preferably at an angle of 30-60°, such as at an angle of 40-50°. The angle is preferably large enough to provide sufficient draining action of water under gravitational forces. It is also or in addition preferably such that it can be manufactured without much effort; in view thereof also an angle between the oblique section and an optional bridging section or the U-shaped profile may be taken into account: less bend profiles are preferred.

In an example the present profile further comprises a horizontal section (40) between the oblique section and U-shaped part, for bridging an raised roof edge, wherein a width (wh) of the horizontal section (40) is from 0-60 mm, preferably 5-50mm, such as 10-40 mm, e.g. 20-30 mm. The bridging section may support ease of application of the present profile, provided further clamping action, and may be required in view of an existing roof edge profile.

If the horizontal element is absent, at least one reinforcing element may be provided between the U-shaped part and the oblique part, such as a plate structure.

In an example the present profile further comprises an extension element (70). The extension element protects an underlying bituminous coating from environmental influences, reduces risk of improper sealing, and provides a visual target for applying the coating up to said element. The element has a width of 1-20 mm, such as 5-10 mm. It preferably is not too small.

If the extension element and/or the horizontal section and/or the reinforcing element are present the present profile is typically manufactured by casting or the like.

In an example the present profile comprises a touch (80) .

In an example the present profile comprises a reinforcing element 90.

In an example the present profile has a cutaway (11) providing an angle of 45° relative to a length 1 at one side of the receiving section. It is noted that the same angle results relative to a width of the receiving section. Said profile is intended for use in an inward corner section of the roof. At the other part of the corner section a symmetrical counter section can be applied. As such also corner sections of a rectangular roof can be covered with a bituminous coating in a simple and effective manner.

The invention is further detailed by the accompanying figures, which are exemplary and explanatory of nature and are not limiting the scope of the invention. To the person skilled in the art it may be clear that many variants, being obvious or not, may be conceivable falling within the scope of protection, defined by the present claims.

FIGURES

The invention although described in detailed explanatory context may be best understood in conjunction with the accompanying figures. In the figures: 100 roof profile 200 roof 300 wall 10 receiving section 11 cutaway 20 oblique section 30 U-shaped part 31 Support section 40 bridging section 50 old bituminous coating 60 new bituminous coating 70 extension element 80 touch 90 reinforcement h height of the profile w width of the profile 1 length of the profile ws width of the support section wr width of the receiving section w0 width of the oblique section

Wh width of the horizontal bridging section t thickness of the profile

Figs, la-c shows details of the present profile and application thereof.

Fig. 2 shows the application of the present roof profile on a roof segment.

DETAILED DESCRIPTION OF THE FIGURES

Fig. la shows a worked open version (left) of the present profile having a length 1, a width w, a height h, and a thickness t, and a perspective view thereof (right). The profile comprises a receiving section 10, an oblique section 20, a horizontal section 40, a U-shaped profile 30, and as part of the U-shaped profile a support section 31. The width of the support section is indicated with ws, the width of the receiving section with wr, the width of the oblique section with w0, and the width of the horizontal bridging section with wh.

Fig. lb shows a schematical cross-section of a roof having the present profile 100 applied on a left side thereof. The old bituminous coating 50 is still partly present at an edge of the roof 200, and on top of the present profile, in particular the receiving section thereof, a new bituminous coating 60 is applied. The present roof profile may further comprise an extension element 70. A new bituminous coating is typically applied towards this extension element. For better positioning of the present roof profile on the roof and against the wall a touch 80 may be provided. The touch preferably has an element perpendicular to a horizontal plane. A length of the touch is from 5-40 mm, preferably 10-20 mm. Further a reinforcing element 90 may be present. The reinforcing element may be a bridging part between the oblique section and the vertical part of the U-shape, or may be a solid part, filling a space between the oblique section and the U-shape.

Fig. lc shows a top view of a receiving section 10, having length 1, and provided with a cutaway 11.

Fig. 2 shows the application of the present roof profile on a roof segment. Therein the profile 100 is applied on a wall segment 300 or upstanding part of the roof 200. The roof 200 typically has an oblique section extending towards the wall.

The figures have been further detailed throughout the description.

The following section is added to support searching of the prior art of the patent.

Clauses 1. Roof profile (100) for renovation of existing bituminous coatings, the roof profile having a thickness (t), a length (1), a width (w), and a height (h) , the roof profile comprising a receiving section (10) for receiving bituminous material, an oblique section (20) for draining next to the receiving section, a substantial U-shaped part (30) having a support part (31), wherein the U-shaped part provides a clamping action when applied to a roof. 2. Roof profile according to claim 1, wherein the profile is formed from a plate. 3. Roof profile according to any of the preceding claims, wherein the profile has a thickness (t) from 1-5 mm. 4. Roof profile according to any of the preceding claims, wherein the profile is formed from a metal, or from a thermoset plastic. 5. Roof profile according to any of the preceding claims, wherein the length (1) is from 20-300 cm, the height (h) from 5-15 cm, and the width (w) from 2-20 cm, wherein a width (ws) of the support part (31) is from 0.5-2,5 cm, wherein a width (w0) of the oblique section (20) is from 10-30 mm, and the width (wr) of the receiving section (10) is from 10-70 mm. 6. Roof profile according to any of the preceding claims, wherein the oblique section is at an angle of 20-80° relative to the receiving section (10). 7. Roof profile according to any of the preceding claims, further comprising a horizontal section (40) between the oblique section and U-shaped part, for bridging an raised roof edge, wherein a width (wh) of the horizontal section (40) is from 0-60 mm. 8. Roof profile according to any of the preceding claims, further comprising an extension element (70). 9. Roof profile according to any of the preceding claims, further comprising a touch (80). 10. Roof profile according to any of the preceding claims, further comprising a reinforcing element (90). 11. Roof profile according to any of the preceding claims for an inward corner section of the roof, having a cutaway (11) providing an angle of 45° relative to a length 1 at one side of the receiving section. 12. Method of renovation of a bituminous coating on a roof (200) comprising the steps of applying the roof profile (100) of any of claims 1-11 to a side of the roof, without removing a bituminous coating (50) being present at the side of the roof, applying a new bituminous coating (60) to the roof, the coating covering a receiving section (10) of the profile.

Claims

A roof profile (100) for the renovation of existing bituminous coatings, wherein the roof profile has a thickness (t), a length (1), width (w), and a height (h), the roof profile comprising a receiving section (10) ) for receiving bituminous material, an oblique part (20) for discharging next to the receiving part, a substantially U-shaped part (30) with a support part (31), the U-shaped part providing a clamping action when applied to a roof.

Roof profile according to claim 1, wherein the profile is formed from a plate.

3. Roof profile according to one of the preceding claims, wherein the profile has a thickness (t) of 1-5 mm.

Roof profile according to one of the preceding claims, wherein the profile is formed from a metal or from a thermosetting plastic.

Roof profile according to one of the preceding claims, wherein the length (1) is 20-300 cm, the height (h) of 5-15 cm, and the width (w) is 2-20 cm, wherein a width (ws) of the support portion (31) is 0.5-2.5 cm, wherein a width (w0) of the oblique portion (20) is 10-30 mm, and wherein a width (wr) of the receiving portion (10) is 10-70 mm is.

Roof profile according to one of the preceding claims, wherein the sloping part has an angle of 20-80 ° with respect to the receiving part (10).

Roof profile according to one of the preceding claims, further comprising a horizontal part (40) between the sloping part and the U-shaped part for bridging a raised roof edge, wherein a width (wh) of the horizontal part (40) of Is 0-60 mm.

Roof profile according to one of the preceding claims, further comprising an extension element (70).

Roof profile according to one of the preceding claims, further comprising a stop (80).

10. Roof profile according to one of the preceding claims, further comprising a reinforcement element (90).

Roof profile according to one of the preceding claims for an inward corner part of the roof, with cut-away part (11) having an angle of 45 ° with respect to a length 1 on one side of the receiving part.

A method for renewing a bituminous covering on a roof (200) comprising the steps of applying the roof profile (100) according to one of claims 1 to 11 on one side of the roof, without removing a bituminous covering ( 50) present on the roof side, applying a new bituminous covering (60) to the roof, the covering covering a receiving portion (10) of the profile.