WO2024225890A1

WO2024225890A1 - Waterproof roof system

Info

Publication number: WO2024225890A1
Application number: PCT/MY2024/050037
Authority: WO
Inventors: Hon Leong LIM
Original assignee: Lim Hon Leong
Priority date: 2023-04-28
Filing date: 2024-04-25
Publication date: 2024-10-31

Abstract

The present invention relates to a waterproof roof system constructed to prevent water from leakage from a sloped roof. Accordingly, the waterproof roof system includes: a waterproof layer; and a leak-proof roof truss, wherein the waterproof layer includes waterproofing sheeting that is securely intersected with or coincidentally overlapped with each other by fastening means onto batten, such that said fastening means are covered or overlaid by the subsequent intersected waterproofing sheeting to attain leak-free protection, and wherein the leak-proof roof truss includes a set of cross-lattice longitudinal truss and lateral truss securely overlaid onto the waterproofing sheeting of the waterproof layer by fixing means, such that said fixing means will only be penetrated through the contact between the cross-join of the cross-lattice of the longitudinal truss and lateral truss without penetrating through the waterproofing sheeting of the waterproof layer to attain fully leak-proof protection.

Description

WATERPROOF ROOF SYSTEM

FIELD OF INVENTION

The present invention generally relates to a roof system and more particularly to a waterproof roof system that includes a waterproof layer and a leak-proof roof truss, constructed to prevent water from leaking from a sloped roof.

BACKGROUND OF INVENTION

Insufficient roof slope can lead to water backflow and leakage problems, particularly in areas with crosswinds. The use of sealants and other sticky substances to close gaps, joints, or screw holes is a common maintenance method for addressing roof leakage. However, this approach may not provide a permanent or effective solution to the problem.

To address water leakage on sloping roofs, it may be necessary to consider structural design solutions that address the underlying cause of the problem. This could include increasing the roof slope, adding a secondary water barrier, or improving the drainage system. These solutions can help prevent water from penetrating the roof structure and causing damage. Another approach to addressing water leakage is to use advanced roofing materials or systems that are specifically designed to resist water penetration. For example, some roofing systems feature provides interlocking panels, which provide a more secure and water-resistant seal than traditional roofing materials. Additionally, some roofing systems include built-in drainage systems that help to prevent water from accumulating on the roof surface. However, those approaches have not been entirely satisfactory due to certain drawbacks, as most of the effective solutions for water leakage on sloping roofs can be challenging due to various factors, which will ultimately depend on the specific circumstances of the building’s design, roof structure, materials used, and environmental conditions.

Installing aluminium foil heat insulation film or flat zinc plate as a second layer of waterproofing on the roof can provide additional protection against water penetration. However, it is essential to address the underlying issues with the roof structure's waterproofing and drainage capabilities. Older technologies that rely on sealants or sticky substances may not be sufficient to prevent water leakage over the long term. Water can still infiltrate through gaps or screw holes, causing damage to the insulation film and the interior of the building.

In essence, there are several reasons for water leakage on the roofs: i) The exposed sticky material used to seal gaps and screw holes can be eroded by weather and has a short useful life. ii) Insufficient roof slope can cause slow water flow and reverse flow of rainwater, leading to water leakage into the house. This situation can be aggravated during storms, leading to more damage from water leakage. iii) The lack of slope is often caused by the original roof truss structure's insufficient height, which is a stereotyped structure that cannot be easily modified without rebuilding the roof. This can result in continued leakage. iv) Broken or damaged old roof truss slats due to years of water penetration can cause part of the roof to collapse or the roof structure to sink, leading to water stagnation and worsening leakage. v) Long-term water penetration that can weaken wooden roof trusses and create conditions for termite breeding. To address these issues, it may be necessary to consider more advanced roofing materials or systems that provide better waterproofing and drainage capabilities. This could include the installation of interlocking roofing panels, which can provide a more secure and water-resistant seal, or the use of roofing membranes designed specifically to resist water penetration. Additionally, improving the roof's drainage capabilities can help prevent water from accumulating on the roof surface and causing damage.

Some attempts have been made by adding a second layer of waterproofing to provide additional protection against water penetration. However, it is essential to address the underlying issues with the roof structure's waterproofing and drainage capabilities to prevent water leakage and damage over the long term. For example, EP 0395290 B1 discloses a roof structure, which is particularly suitable for the construction of tiled or slated roofs. Accordingly, the roof of this invention comprising a roof-supporting structure, corrugated waterproof sheeting supported by the structure and covering substantially the entire roof in a watertight manner, and tiles or slates overlying the corrugated waterproof sheeting and resting thereon, the waterproof sheeting comprising fibres impregnated with bitumen and having its corrugations running down the slope of the roof, the roofsupporting structure including rafters, the roof-supporting structure also including means structurally supporting the corrugated waterproof sheeting from below across its entire width, the said supporting means being secured by securing means to the rafters, the corrugated waterproof sheeting being secured to the said supporting means by nails or other fixing means which pass through crests of the corrugations in the sheeting into the supporting means at points between the rafters, and the corrugated sheeting along the lower margin of the roof adjacent the eaves sloping at a lesser angle to the horizontal than the remainder. FR 2500039 A1 discloses a load bearing metal sheet support for roof tiles, which is supported by purlins and has transverse laths and longitudinal ribs with under-layer of insulated material. Accordingly, the metal sheet support for tiles is made of ribbed steel and has a rounded lateral rib allowing the anchorage and locking of two adjacent sheets. The sheet is formed by prefabrication and welding by automatic machines into transverse laths. The sheet can have an inner lining of an insulating dressing held by a counter plate. The longitudinal ribs assure the rigidity of the plate and the ventilation of the space beneath the roof when the metal sheet is placed on the purlins.

US 5577360 A discloses a slate mounting system having a plurality of spaced parallel mounting tracks for being secured to the framework of a structure. Accordingly, a plurality of rows of slate mounting panels is provided with each row of slate panels associated with a respective track. A slot is formed in each side edge of the slate panel. A spring fastener is mounted in the slot and secured to a track to mount the panel in place. Where the panels are overlapped, the head of an underlying panel is also sandwiched between the outer panel and the track and held in position by the same fastener.

WO 2000066853 A1 discloses securing and weatherproofing roof tiles. Accordingly, the system of this invention comprises a plurality of elongate Z-shaped roof battens arranged to be secured to the rafters in parallel spaced relationships, and laterally spaced parallel weather strips extending between pairs of adjacent battens. Each weather-strip has a length such that it extends beyond the lower batten, and retention clips for securing each tile to a batten, each clip at one end to engage the lower batten and a clip at the other to engage the tile.

GB 2160559 A discloses a weathering member for tiled or slated roofs. Accordingly, weathering member of this invention has on its upper side a hook-like member which extends between the side edges of those tiles directly overlying the weathering member and engages over the tail end of a tile in the adjacent row above. Flange engages the top side of batten. The weathering ember may also be secured to batten by nails through apertures.

CN 102747813 B discloses a roof tile wind uncovering resistance supporting and hanging fixing construction member and installation and use method. Accordingly, this invention discloses a roof tile wind uncovering resistance supporting and hanging fixing construction member which comprises an upper hook support and a lower hook support, wherein positions of the upper hook support and the lower hook support are opposite. The upper hook support and the lower hook support are sinking U-shaped structures, the upper hook support and the lower hook support are connected through a connection plate, and the upper hook support, the lower hook support and the connection plate are integrally molded. The roof tile wind uncovering resistance supporting and hanging fixing construction member can prevent tiles from dropping, enables the tiles to be firmly fixed on a roof tile hanging structural system, strengthens safety of a slope tile roof system, and simultaneously has no influences on attractive effects of a tile roof.

However, the disclosure of such prior arts has not been entirely satisfactory due to several shortcomings, making them unable to effectively achieve the ideal or maximum yield of leak-proof and durability performances. As a considerable amount of work, complexity, and continuation checkups will still make their way into the roofs, it may also come at a large expense to ensure optimal performance and operational efficiency, requiring expensive and frequent maintenance on a regular basis.

In light of the foregoing, it is desirable to provide a waterproof roof system so as to overcome or reduce one or more of the aforementioned limitations or drawbacks. The waterproof roof system of the present invention provides a new type of roof system that includes a waterproof layer and a leak-proof roof truss, both of which work together to prevent water from leaking from the sloped roof, which to be an improvement over traditional roofing systems. The waterproof roof system of the present invention and its combination of elements thereof will be described and exemplified in the detailed description.

SUMMARY OF THE INVENTION

The present invention relates to a waterproof roof system constructed to prevent water from leakage from a sloped roof. Accordingly, the waterproof roof system includes: a) a waterproof layer; b) a leak-proof roof truss; wherein the waterproof layer includes waterproofing sheeting that is securely intersected with or coincidentally overlapped with each other by fastening means onto batten, such that said fastening means are covered or overlaid by the subsequent intersected waterproofing sheeting to attain leak-free protection; and wherein the leak-proof roof truss includes a set of cross-lattice longitudinal truss and lateral truss securely overlaid onto the waterproofing sheeting of the waterproof layer by fixing means, such that said fixing means will only be penetrated through the contact between the cross-join of the cross-lattice of the longitudinal truss and lateral truss without penetrating through the waterproofing sheeting of the waterproof layer to attain fully leak-proof protection.

By way of example but not limitation, the waterproofing sheeting may be made of metal, alloy, or insulated non-metal materials such as plastic, rubber, polymer or synthetic polymer, fibre, or carbon fibre.

Optionally, but not limited to, the waterproofing sheeting may be folded at a predetermined angle at both intersectional ends so as to strengthen their interlocking strength at the intersection or overlapping portion to prevent water leakage.

It will be appreciated that the fastening means of the present invention may be a sort of securing mechanism, including screws, bolts, rivets, clips, stapler pins, clamps, or nails, depending on the joining or securing task and the materials utilized. In the preferred exemplary of the present invention, the longitudinal truss and lateral truss may be a sort of hollow member, including hollow bars or tubes formed of metal, alloy, or non-metal materials such as resin, polymer or synthetic polymer, fibre, or carbon fibre.

Preferably, but not limited to, both ends of the longitudinal truss are covered by an end cap. If desired, the contact between the cross-lattice longitudinal truss and lateral truss (144) can optionally be provided with waterproof protective cover. Accordingly, the end cap and the waterproof protective cover may be made of various materials, including metal, alloy, or non-metal materials such as plastic, rubber, polymer or synthetic polymer, fibre, or carbon fibre cap.

It should be noted that both ends of the lateral truss is provided with a joint member. By way of example but not limitation, the joint member may be made of various materials, including metal, alloy, or non-metal materials such as plastic, rubber, polymer or synthetic polymer, fibre, or carbon fibre plate or bracket.

It should be noted that the joint member may be securely mounted onto the batten through the waterproofing sheeting of the waterproof layer by the fixing means. It will be appreciated that said fixing means will then be covered or overlaid by a membrane to provide a leak-proof seal for additional leak protection.

In the preferred exemplary of the present invention, the fixing means may be a sort of fastening mechanism, including screws, bolts, rivets, clips, stapler pins, or clamps, depending on the joining or securing task and the materials utilized.

By way of example but not limitation, the membrane can be a seamless bitumen or asphalt polymer mixed waterproofing membrane covering. It will be appreciated that the cross-lattice longitudinal truss and lateral truss of the leakproof roof truss are able to support interlocking roof tiles and prevent them from moving, ensuring a stable and secure roof structure.

It will further be appreciated that the membrane may also be used to cover a roof ridge before the roof ridge is overlaying with a series of ridge caps. Accordingly, the series of ridge caps may be securely connected to a hollow longitudinal member by the fixing means.

It will be appreciated that the membrane may further be provided and applied to all necessary roof structures, including roof firewalls, side flashings, gutters, vent pipes, roof exhaust fans, clear skylight tiles, and/or fascia protection covers.

The present invention consists of several novel features and a combination of parts hereinafter fully described and illustrated in the accompanying description and drawings, it being understood that various changes in the details may be made without departing from the scope of the invention or sacrificing any of the advantages of the present invention.

BRIEF DESCRIPTION OF THE DRAWINGS

The present invention will be fully understood from the detailed description given hereinbelow and the accompanying drawings, which are given by way of illustration only, and thus are not limiting to the present invention, wherein:

Figures 1 a and 1 b are cross-sectional exploded views of different installation approaches of a waterproof roof system with alternative configuration of the layers in accordance with the preferred exemplary of the present invention;

Figures 2 to 4 are diagrammatic perspective view illustrating the installation of waterproofing sheeting as a waterproof layer onto batten according to the preferred exemplary of the present invention;

Figures 5a to 6b are diagrammatic perspective views illustrating various approaches of the installation process for lateral trusses onto the waterproofing sheeting, with the joint members and membranes attached to the batten in accordance with the preferred exemplary of the present invention;

Figure 7 is a diagrammatic perspective view illustrating the elucidating approach of using fixing means for the installation of longitudinal truss onto the lateral truss according to the preferred exemplary of the present invention;

Figure 8 is a diagrammatic perspective view illustrating longitudinal truss and lateral truss of leak-proof roof truss may appropriately be covered by end cap and waterproof protective cover if necessary according to the preferred exemplary of the present invention; Figure 9 is a diagrammatic perspective view illustrating interlocking roof tiles are being supported by the cross-lattice longitudinal truss and lateral truss of the leak-proof roof truss according to the preferred exemplary of the present invention; Figures 10a and 10b are diagrammatic perspective views illustrating one or more layers of touch-on membranes are applied onto roof ridge according to the preferred exemplary of the present invention;

Figure 11 presents a diagrammatic perspective view that illustrates the secure installation of a series of ridge caps on top of the roof, along with the application of membranes to various roof structures such as roof firewalls, side flashings, and gutters, in accordance with the preferred embodiment of the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

The present invention generally relates to a roof system, and more particularly to a waterproof roof system that includes a waterproof layer and a leak-proof roof truss, constructed to prevent water from leaking from a sloped roof. Hereinafter, this specification will describe the present invention according to the preferred exemplary of the present invention. However, it is to be understood that limiting the description to the preferred exemplary of the invention is merely to facilitate discussion of the present invention, and it is envisioned that those skilled in the art may devise various modifications and equivalents without departing from the scope of the appended claims.

The detailed description set forth below in connection with the appended drawings is intended as a description of various exemplary of the present invention and is not intended to represent the only assemblies or embodiments in which the present invention may be practiced. The detailed description includes specific details for the purpose of providing a methodical understanding of the present invention. However, it will be apparent to those skilled in the art that the present invention may be practiced without these specific details. Moreover, the terminology used herein is for the purpose of describing particular embodiments and is not intended to be limited to example embodiments. Acronyms and other descriptive terminology may be used merely for convenience and clarity and are not intended to limit the scope of the invention.

The present invention aims to provide a waterproof roof system adapted to prevent water leaks from a sloped roof. The structure includes a waterproof layer and a leak-proof roof truss, both of which work together to prevent water from seeping into the building below. Ensuring proper design for sloped roofs is paramount due to the vulnerability of water infiltration. The purpose of the present invention is to provide a long-term solution to water seepage caused by insufficient roof slopes without the need for costly and timeconsuming roof rebuilding. The present invention is able to achieve full waterproofing and drainage functions for sloping roofs, such as tile roof or metal roof, without affecting or changing the original roof's appearance. It should be noted that the present invention may selectively be implemented in any newly constructed framed roof or in an old framed roof ready for refurbishment. By addressing the underlying issues of water seepage, the present invention enables the provision of a more cost-effective and efficient solution to ensure the long-term durability and stability of the roof structure.

By implementing the present invention, it is possible to prevent water from leaking onto a sloped roof, which can help protect the underlying structure from damage and prolong the lifespan of the roof. This could be particularly useful in areas with heavy rainfall or where there is a risk of water damage due to extreme weather conditions. Moreover, fast construction speed, low construction risk, and relatively low cost of the waterproof layer and the leak-proof roof truss are also significant advantages, making it a practical and feasible option for many property owners. The ability to disassemble and reuse the waterproof layer and a leak-proof roof truss is also an excellent feature that promotes environmental sustainability, as it reduces waste and minimizes the environmental impact of the roof's installation and removal. Overall, the present invention is able to provide a number of potential benefits for homeowners and builders alike and could help to improve the durability and reliability of roofing systems in a variety of different settings.

To achieve the above-mentioned, the waterproof roof system constructed to prevent water from leakage from a sloped roof according to the preferred mode of carrying out the present invention will now be described in accordance with the accompanying drawings in Figures 1 a to 11 , either individually or in any combination thereof. In the preferred exemplary of the present invention, the waterproof roof system (100) generally includes a waterproof layer (120) and a leak-proof roof truss (140) (see Figures 1 a and 1 b). Accordingly, the waterproof layer (120) includes waterproofing sheeting (122) that is securely intersected with or coincidentally overlapped with each other by fastening means (124) onto batten (220) (see Figures 2 and 3). Accordingly, the batten (220) will be supported by rafters (200). It should be noted that the fastening means (124) are covered or overlaid by the subsequent waterproofing sheeting (122), such that the fastening means (124) are not exposed and do not penetrate through the waterproofing layer. This approach aims to achieve a leak-free mode, ensuring that water cannot penetrate the roofing system through any exposed fastening means (124) (see Figure 4).

In the preferred exemplary of the present invention, the leak-proof roof truss (140) includes a set of cross-lattice longitudinal truss (142) and lateral truss (144), which are securely overlaid onto the waterproofing sheeting (122) of the waterproof layer (120) using fixing means (146). It must be emphasized that the fixing means (146) should only be penetrated through the contact between the cross-join of the cross-lattice of the longitudinal truss (142) and lateral truss (144) without penetrating through the waterproofing sheeting (122) of the waterproof layer (120) (see Figure 7). This approach aims to ensure that the roof truss system is fully leak-proof, as no holes or penetrations will exist through the waterproofing sheeting (122). This construction adapted to provide fully leak-proof protection for the structure, thus minimizing penetrating holes to optimize water leakage prevention. It will be appreciated that the present invention may selectively be used on any new roof or roof that has been built, depending on the specific requirements of the project.

It should be noted that the full coverage approach of the present invention is able to solve the rainwater infiltration caused by the insufficient slope of the existing roof structure with a durable leakproof. It also provides protection against various intruders such as thieves, small animals, and birds from entering the building, without the need of modifying the existing/established roof structure or rebuilding a new roof truss structure.

By way of example but not limitation, the waterproofing sheeting (122) may be made of metal, alloy, insulated or non-metal materials such as plastic, rubber, polymer or synthetic polymer, fibre, or carbon fibre. Preferably, but not limited to, metal cladding boards or Aluzinc plates, of which the thickness can be various, may be used as the waterproofing sheeting (122). The metal cladding boards or Aluzinc plates, although exemplary, will be used herein in describing the possible constituents that may be used by the present invention. However, other forms of shield adapted to obtain different optimal effects and functioning characteristics may also be contemplated. As such, the metal cladding boards or Aluzinc plates as described herein should not be construed as limiting in any way.

Optionally, but not limited to, the waterproofing sheeting (122) may be folded at a predetermined angle at both intersectional ends so as to strengthen their interlocking strength at the intersection or overlapping portion to prevent water leakage. By folding the waterproofing sheeting (122) at a specific angle, it can strengthen the interlocking strength at the intersection or overlapping portion of the waterproofing sheeting (122). The folding of the waterproofing sheeting (122) creates a barrier that helps to prevent water from seeping through the intersection and also increases the overall strength of the sheeting at the intersection. This is done to prevent water from leaking through the intersection or overlapping portions, as this is particularly important in areas where water tends to accumulate, such as at the corners or edges of a building's roof or walls. By reinforcing the intersectional ends of the waterproofing sheeting (122) with a fold (partly), it can improve the overall effectiveness of the waterproofing and reduce the risk of water damage to the building or structure. It will be appreciated that the fastening means (124) of the present invention may be a sort of securing mechanism, including screws, bolts, rivets, clips, stapler pins, clamps, or nails, depending on the joining or securing task and the materials utilized. Accordingly, the fastening means (124) in the present invention can be any type of securing mechanism, such as those mentioned above. The specific type of fastening means (124) used will depend on the materials being joined or secured and the particular task at hand. Therefore, the choice of the fastening means will be determined by practical considerations such as the strength required, the materials being used, and the ease of installation.

In the preferred exemplary of the present invention, the longitudinal truss (142) and lateral truss (144) may be a sort of hollow member. This hollow member can be in the form of hollow bars or tubes made of metal, alloy, or non-metal materials such as resin, polymer or synthetic polymer, fibre, or carbon fibre. Hence, the choice of material for the longitudinal and lateral trusses (142, 144) will depend on the specific requirements of the present invention, such as the desired strength, weight, durability, and cost. By way of example but not limitation, Aluminium hollows may be used as longitudinal trusses (142) and lateral trusses (144). However, other types of materials adapted to obtain different optimal effects and functioning characteristics may also be contemplated. As such, the Aluminium hollows as described herein should not be construed as limiting in any way.

Preferably, but not limited to, both ends of the longitudinal truss (142) are covered by an end cap (150) (see Figure 8). If desired, the contact between the cross-lattice longitudinal truss (142) and lateral truss (144) can optionally be provided with a waterproof protective cover (152). This arrangement ensures that the truss structure is protected from potential water ingress and other environmental factors that could potentially compromise its integrity. Such the end cap (150) and the waterproof protective cover (152) may further safeguard the truss structure from moisture and other potential sources of damage. Accordingly, the end cap (150) and the waterproof protective cover (152) may be made of various materials, including metal, alloy, or non-metal materials such as plastic, rubber, polymer or synthetic polymer, fibre, or carbon fibre cap. However, it is important to note that while the use of end cap (150) and/or the waterproof protective cover (152) may be preferred, it is not necessary for the invention to function. The use of end cap (150) and/or the waterproof protective cover (152) may provide additional protection or aesthetic benefits, but the choice to use them will depend on practical considerations such as cost, desired functionality, and design requirements.

It should be noted that both ends of the lateral truss (144) is provided with a joint member (160). By way of example but not limitation, the joint member (160) may be made of various materials, including metal, alloy, or non-metal materials such as plastic, rubber, polymer or synthetic polymer, fibre, or carbon fibre plate or bracket. Preferably, but not limited to, the joint member (160) may be a substantially Y-shaped or T-shaped joint. However, other joint shapes can also be used depending on the desired functionality and performance characteristics. As such, the Y-shaped or T-shaped joint described herein is merely an example and should not be interpreted as limiting the scope of the invention.

It is crucial to make sure that the joint member (160) is securely mounted onto the batten (220) through the waterproofing sheeting (122) of the waterproof layer (120) by the fixing means (146) so as to ensure a proper secure installation. Accordingly, the joint member (160) is a crucial component and its proper secure installation is necessary to ensure that the roof is structurally rigid to prevent safety hazards and damage (see Figures 5a to 6b). The proper secure installation of the joint member (160) onto the batten (220) provides structural integrity to the roofing system so that it is able to withstand various environmental factors such as wind, rain, and snow.

In the preferred exemplary of the present invention, the fixing means (146) may be a sort of fastening mechanism, including screws, bolts, rivets, clips, stapler pins, or clamps, depending on the joining or securing task and the materials utilized. Accordingly, the fixing means (146) can be any type of fastening mechanism as above-described. It will be appreciated that the choice of fixing means (146) will depend on factors such as the strength required for the joint, the materials being joined, and the ease of assembly or disassembly.

The fixing means (146) ensures that the joint member (160) is securely mounted onto the batten (220). In order to provide a fully leak-proof seal, the fixing means (146) will then be covered or overlaid by a membrane (250) to provide a leak-proof seal for additional leak protection. It is important to note that the membrane (250) acts as an extra layer of waterproofing and helps to prevent any water from penetrating through the joint member (160) and/or fixing means (146). Accordingly, covering or overlaying the joint member (160) and/or fixing means (146) with the membrane (250) can provide additional leak protection by creating a seal that prevents any water from penetrating through the joints. This can help further reinforce the waterproofing of the structure and provide added protection against potential leaks. This approach enables to ensure that the roof truss system is fully leak-proof so that any holes or penetrations that exist through the waterproofing sheeting (122) are watertight sealed or covered. Thus, fully leak-proof protection for the roof structure is achieved to optimize water leakage prevention.

It will be appreciated that the installation process for the lateral truss (144) onto the waterproofing sheeting (122) of the waterproof layer (120), with the joint member (160) securely mounted onto the batten (220) by fixing means (146), can be done in various ways depending on desired functionality, performance characteristics, joining or securing task, and materials utilized. Optionally, but not limited to, the membrane (250) may be first applied onto a roof ridge (240), as soon as the waterproofing sheeting (122) is completely installed, followed by the installation of the lateral truss (144) with the joint member (160) (see Figures 5a and 5b). It will be appreciated that the membrane (250) may also optionally, but not limited to be applied onto the joint member (160) and the roof ridge (240), after the installation of the lateral truss (144) with the joint member (160) onto the batten (220) through the waterproofing sheeting (122) (see Figures 6a and 6b).

Accordingly, the installation process for the membrane (250) may be carried out in two optional ways. By way of example but not limitation, the membrane (250) may be applied onto the roof ridge (240) once the waterproofing sheeting (122) is fully installed. Following this, the lateral truss (144) with the joint member (160) is installed, as shown in Figures 5a and 5b. In the other approach, the lateral truss (144) with the joint member (160) may first be installed onto the waterproofing sheeting (122). Then, the membrane (250) is optionally applied onto the joint member (160) and the roof ridge (240), as shown in Figures 6a and 6b. It will be appreciated that both approaches provide flexibility in the installation process, allowing for the membrane (250) to be applied either before or after the installation of the lateral truss (144) with the joint member (160) onto the waterproofing sheeting (122), depending on the specific requirements of the project.

By way of example but not limitation, the membrane (250) can be a seamless bitumen or asphalt polymer mixed waterproofing membrane covering. The membrane (250) may be applied to the roof surface by using a variety of techniques such as, for example but not limited to self-adhering, torching, or hot-mopping. It should be noted that the seamless bitumen or asphalt polymer mixed waterproofing membrane covering, although exemplary, will be used herein in describing the possible constituents that may be used by the present invention. However, other forms of membrane or shield adapted to obtain different optimal effects and functioning characteristics may also be contemplated. As such, the seamless bitumen or asphalt polymer mixed waterproofing membrane covering as described herein should not be construed as limiting in any way.

In accordance with the preferred exemplary of the present invention, the cross-lattice longitudinal truss (142) and lateral truss (144) of the leak-proof roof truss (140) are able to support interlocking roof tiles (260) and prevent them from moving, thus ensuring a stable and secure roof structure (see Figure 9). Accordingly, the cross-lattice longitudinal truss (142) and lateral truss (144) of the leak-proof roof truss (140) are important components that provide structural support to the interlocking roof tiles (260) and help to keep them in place. The cross-lattice longitudinal truss (142) helps to distribute the weight of the interlocking roof tiles (260) evenly across the rafters (200) and battens (220), which helps to prevent sagging or other types of structural damage over time. It should be noted that the cross-lattice longitudinal truss (142) and lateral truss (144) are able to provide additional support to the interlocking roof tiles (260) and help to prevent them from moving, especially during high winds or other extreme weather conditions. Together, the crosslattice longitudinal truss (142) and lateral truss (144) help to ensure a stable and secure roof structure that is able to withstand various environmental factors and keep the interlocking roof tiles (260) in place. This is important for preventing water leaks and other types of damage to the roof and the underlying structure.

It will be appreciated that the the membrane (250) may also be used to cover the roof ridge (240) before the roof ridge (240) is overlaying with a series of ridge caps (242). By way of example but not limitation, one or more layers of membranes (250) may be used. Figure 10a shows the first layer of touch-on membrane (250) is applied on the roof ridge (240). If desired, a second layer of touch-on membrane (250) may also be applied thereon (see Figure 10b), depending on the specific requirements of the project, such as for example, but not limited to preferred functionality, performance characteristics, joining or securing task, and materials used.

In the preferred exemplary of the present invention, the series of ridge caps (242) may be securely connected to a hollow longitudinal member (244) by the fixing means (146) (see Figure 1 1 ). Accordingly, it is important to cover the roof ridge (240) with a membrane (250) before overlaying it with a series of ridge caps (242). The membrane (250) helps to provide an additional layer of waterproofing and prevent water from penetrating the roof. To ensure that the series of ridge caps (242) is securely connected to the roof structure, it is crucial to use the appropriate fixing means (146) to attach them to the hollow longitudinal member (244). This helps to ensure that the ridge caps (242) are properly anchored to the roof structure and are able to withstand various environmental factors such as wind, rain, and snow. By securely connecting the series of ridge caps (242) to the hollow longitudinal member (244) with the fixing means (146), the ridge caps (242) can effectively cover the roof ridge (240) and prevent water from entering the roof cavity. This helps to maintain the integrity of the waterproofing system and prevent potential water damage to the roof and underlying structure.

It will further be appreciated that the membrane (250) may further be provided and applied to all necessary roof structures, including roof firewalls (300), side flashings (320), gutters (400) (see Figure 11 ), vent pipes, roof exhaust fans, clear skylight tiles, and/or fascia protection covers (not shown). By applying the membrane (250) to all necessary roof structures as above-mentioned, the waterproofing roof system (100) can effectively prevent water from penetrating into the roof and causing potential damage or compromising the structural integrity of the roof. Overall, the waterproof roof system (100) of the present invention with the waterproof layer (120) and the leak-proof roof truss (140) can provide a highly effective solution for preventing water leaks from a sloped roof. It can also help to increase the durability and lifespan of the roof.

It should be noted that the installations, components, or parts used to carry out the aforementioned invention is illustrative and exemplary only of how the invention can be implemented, and are not restrictive or limiting to the invention. One ordinary skill in the art would recognize that the installations, components, or parts used herein may be altered in a manner so as to obtain different optimal effects or desired operating characteristics. As such, the above-described should not be construed as limiting, but as the best mode contemplated by the inventor for carrying out the invention, and yet should be viewed as a starting point for further development and exploration.

The word “exemplary” is used herein to mean serving as an example, instance, or illustration. Any embodiment described herein as “exemplary” is not necessarily to be construed as preferred or advantageous over other embodiments. Likewise, the term “embodiment” of an assembly, method, system, apparatus, device, or article of manufacture does not require that all embodiments of the invention include the described components, structure, features, functionality, processes, advantages, benefits, or modes of operation. As such, the present invention can be implemented in various ways, and the specific embodiments described are not meant to be limiting or prescriptive.

With respect to the use of substantially any plural and/or singular terms herein, those having skill in the art can translate from the plural to the singular and/or from the singular to the plural as is appropriate to the context and/or application. The various singu lar/plu ral permutations may be expressly set forth herein for sake of clarity. Also, as used herein, the singular forms "a," "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms "comprises", "comprising", "includes" and/or "including," if used herein, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof.

The invention being thus described, it will be obvious that the same may be varied in many ways. Such variations are not to be regarded as a departure from the principle and scope of the invention, and all such modifications as would be obvious to one skilled in the art are intended to be included within the scope of the following claims.

Claims

1 . A waterproof roof system constructed to prevent water from leakage from a sloped roof, the waterproof roof system (100) includes: a) a waterproof layer (120); b) a leak-proof roof truss (140); wherein the waterproof layer (120) includes waterproofing sheeting (122) that is securely intersected with or coincidentally overlapped with each other by fastening means (124) onto batten (220), such that said fastening means (124) are covered or overlaid by the subsequent intersected waterproofing sheeting (122) to attain leak- free protection; and wherein the leak-proof roof truss (140) includes a set of cross-lattice longitudinal truss (142) and lateral truss (144) securely overlaid onto the waterproofing sheeting (122) of the waterproof layer (120) by fixing means (146), such that said fixing means (146) will only be penetrated through the contact between the cross-join of the cross-lattice of the longitudinal truss (142) and lateral truss (144) without penetrating through the waterproofing sheeting (122) of the waterproof layer (120) to attain fully leak-proof protection.

2. The waterproof roof system according to Claim 1 , wherein the waterproofing sheeting (122) can be made of metal, alloy, insulated or non-metal materials such as plastic, rubber, polymer or synthetic polymer, fibre, or carbon fibre.

3. The waterproof roof system according to Claim 2, wherein the waterproofing sheeting (122) can be folded at a predetermined angle at both intersectional ends so as to strengthen their interlocking strength at the intersection or overlapping portion to prevent water leakage.

4. The waterproof roof system according to Claim 1 , wherein the fastening means (124) can be a sort of securing mechanism, including screws, bolts, rivets, clips, stapler pins, clamps, or nails, depending on the joining or securing task and the materials utilized.

5. The waterproof roof system according to Claim 1 , wherein the longitudinal truss (142) and lateral truss (144) can be a sort of hollow member, including hollow bars or tubes formed of metal, alloy, resin, or non-metal materials such as resin, polymer or synthetic polymer, fibre, or carbon fibre.

6. The waterproof roof system according to Claim 1 , wherein both ends of the longitudinal truss (142) are covered by an end cap (150).

7. The waterproof roof system according to Claim 1 , wherein the contact between the cross-lattice longitudinal truss (142) and lateral truss (144) can further be provided with a waterproof protective cover (152).

8. The waterproof roof system according to Claims 6 and 7, wherein the end cap (150) and the waterproof protective cover (152) can be made of various materials, including metal, alloy, or non-metal materials such as plastic, rubber, polymer or synthetic polymer, fibre, or carbon fibre cap.

9. The waterproof roof system according to Claim 1 , wherein both ends of the lateral truss (144) is provided with a joint member (160).

10. The waterproof roof system according to Claim 9, wherein the joint member (160) can be made of various materials, including metal, alloy, or non-metal materials such as plastic, rubber, polymer or synthetic polymer, fibre, or carbon fibre plate or bracket.

11 . The waterproof roof system according to Claim 9, wherein the joint member (160) is securely mounted onto the batten (220) through the waterproofing sheeting (122) of the waterproof layer (120) by the fixing means (146), said fixing means (146) will then be covered or overlaid by a membrane (250) to provide a leak-proof seal for additional leak protection.

12. The waterproof roof system according to Claim 1 , wherein the fixing means (146) can be a sort of fastening mechanism, including screws, bolts, rivets, clips, stapler pins, or clamps, depending on the joining or securing task and the materials utilized.

13. The waterproof roof system according to Claim 11 , wherein the membrane (250) can be a seamless bitumen or asphalt polymer mixed waterproofing membrane covering.

14. The waterproof roof system according to Claim 1 , wherein the cross-lattice longitudinal truss (142) and lateral truss (144) of the leak-proof roof truss (140) are able to support interlocking roof tiles (260) and prevent them from moving, ensuring a stable and secure roof structure.

15. The waterproof roof system according to Claim 13, wherein the membrane (250) is also used to cover a roof ridge (240) before the roof ridge (240) is overlaying with a series of ridge caps (242).

16. The waterproof roof system according to Claim 15, wherein the series of ridge caps (242) is securely connected to a hollow longitudinal member (244) by the fixing means (146).

17. The waterproof roof system according to Claim 13, wherein the membrane (250) is further provided and applied to all necessary roof structures, including roof firewalls (300), side flashings (320), gutters 400), vent pipes, roof exhaust fans, clear skylight tiles, and/or fascia protection covers.