Waterproof, heat-insulation and fireproof integrated structure of wooden roof and construction method thereof

Abstract

This invention discloses an integrated structure and construction method for waterproofing, heat insulation, and fireproofing of wooden roofs. The structure includes a composite roof layer, an eaves waterproofing structure, a light-transmitting enclosure structure, and a fireproof reinforcement structure. In the composite roof layer, an open ventilation gap is formed between the SPF wooden joists and the fireproof gypsum board, simultaneously providing support, fireproofing, heat insulation, and ventilation / moisture protection. In the eaves waterproofing structure, the eaves aluminum plate forms a three-sided seal beneath the waterproof membrane layer, making the eaves an integral part of the roof waterproofing system. The light-transmitting enclosure structure creates a light-transmitting area within the roof and uses rubber gaskets to absorb deformation of the wooden structure to prevent damage from the light-transmitting panels, thus balancing lighting requirements with structural deformation adaptability. This invention integrates waterproofing, heat insulation, fireproofing, eaves sealing, light transmission, and fireproof reinforcement functions. The components are detachable and reusable, significantly shortening the construction period and comprehensively improving the safety and durability of the wooden roof structure.

Description

Technical Field

[0001] This invention belongs to the field of building structure technology, and more specifically, relates to an integrated structure and construction method for waterproofing, heat insulation and fireproofing of wooden roofs. Background Technology

[0002] Timber roofs have been widely used in cultural and tourism buildings, timber villas, resorts, and historical buildings due to their advantages such as being environmentally friendly, easy to construct, and having a natural appearance. However, unlike concrete or steel roofs, timber roofs have always faced three mutually restrictive technical challenges during their service life: poor waterproofing reliability, weak thermal insulation, and the flammability of wood.

[0003] To address these issues, numerous technical solutions have been developed to improve single-function applications. For example, patent CN223781199U discloses a wooden roof structure for traditional building repair. This structure improves the roof's insulation and waterproofing performance to some extent by laying wooden joists at intervals on the roofing planks, embedding insulation boards between adjacent joists, and then laying a waterproof and breathable membrane on the joists and insulation boards. However, its waterproofing layer is a single-layer waterproof and breathable membrane, lacking redundant waterproofing design, and the eaves joints lack metal edging and sealant sealing, making the waterproofing layer easily blown off by strong winds. Another example is patent CN211473015U, which discloses a fire-resistant wood-steel-insulation-tile rural building roof system. This system improves the roof's resistance to burn-through by setting up a fire barrier with a bottom layer of thin steel plates and an intermediate layer of thin steel plates. However, its complex structure and the connection points between the thin steel plates and the wooden structure are prone to thermal bridging, and this solution does not address the systematic coordination between the insulation and waterproofing layers.

[0004] In recent years, some technical solutions have attempted to integrate multiple functions. For example, patent CN222120756U discloses a roofing system using a novel polyurethane foam fire-resistant structure. From bottom to top, it consists of a roof structure layer, a flame-retardant layer, a polyurethane foam waterproof and thermal insulation layer, and a polymer cement waterproof mortar protective layer. The combustible polyurethane foam layer is covered with flame-retardant or non-combustible materials, achieving integration of waterproofing, insulation, and fireproofing at the material level. However, in this type of solution, the functional layers are mainly a combination of superimposed materials. Waterproofing and sealing at details such as roof eaves and gutters still rely on traditional methods of applying sealant or plastering, lacking a dedicated integrated node design. Furthermore, the long-term durability of the roofing system under temperature changes and structural micro-deformation conditions remains to be verified. In addition, most components are fixed and installed only once, making disassembly and reuse difficult after construction. Summary of the Invention

[0005] To address the aforementioned deficiencies or improvement needs of existing technologies, this invention provides an integrated structure and construction method for waterproofing, heat insulation, and fireproofing of wooden roofs. This structure includes a composite roof layer, an eaves waterproofing structure, a light-transmitting enclosure structure, and a fireproof reinforcement structure. In the composite roof layer, an open, ventilated gap is formed between the SPF wooden joists and the fire-resistant gypsum board, simultaneously providing support, fire insulation, and ventilation / moisture protection. In the eaves waterproofing structure, the eaves aluminum panels form a three-sided seal beneath the waterproof membrane layer, making the eaves an integral part of the roof waterproofing system. The light-transmitting enclosure structure creates a light-transmitting area within the roof and uses rubber gaskets to absorb deformation of the wooden structure, preventing damage to the light-transmitting panels from pressure, thus balancing lighting requirements with structural deformation adaptability. This invention integrates waterproofing, heat insulation, fireproofing, eaves sealing, light transmission, and fireproof reinforcement functions. The components are detachable, reusable, and significantly shorten the construction period, comprehensively improving the safety and durability of the wooden roof structure.

[0006] To achieve the above objectives, according to one aspect of the present invention, an integrated waterproof, thermal insulation, and fireproof structure for wooden roofs is provided, comprising: The load-bearing top-floor timber beams and the composite roofing layer, which is fixed to the upper surface of the top-floor timber beams and laid in multiple layers, include: The roof consists of wooden veneer, fireproof gypsum board, SPF wood joists, insulation layer, OSB board, waterproof membrane layer and metal roof panel. The SPF wood joists are arranged in multiple spaced intervals. The insulation layer is filled between adjacent SPF wood joists. The OSB board is bonded to the SPF wood joists and the insulation layer. The eaves waterproofing structure installed at the eaves of the roof includes an eaves aluminum plate wrapped around the outer side of the eaves end. The eaves aluminum plate extends below the waterproof membrane layer. The inner side of the eaves aluminum plate is fixedly connected to the insulation layer by galvanized angle steel. The lower end of the eaves aluminum plate is fixedly connected to the end of the top-floor wooden structure beam by galvanized angle steel and anti-corrosion wood sealing board. A light-transmitting enclosure structure located between adjacent top-level wooden beams includes a light-transmitting plate embedded in a first structural metal strip slot and a second structural metal strip slot, and a rubber pad disposed at the contact end of the light-transmitting plate with the first structural metal strip slot and the second structural metal strip slot. The fire-resistant reinforcement structure installed on the side of the wooden beam includes a T-shaped fireproof steel plate embedded inside the side of the wooden beam and whose outer surface is flush with the outer surface of the wooden beam.

[0007] Furthermore, the SPF wood joists are anchored into the interior of the top-level wood structure beams using long bolts, forming an air gap for ventilation between them and the fireproof gypsum board; the metal roof panels are anchored into the interior of the SPF wood joists using self-tapping screws with water-stop rubber gaskets.

[0008] Furthermore, the eaves waterproof structure also includes: a foam rod and a first structural sealant, wherein the foam rod is filled in the fixed connection gap between the eaves aluminum plate and the insulation layer and the end of the top wooden structure beam; and the first structural sealant is filled on the outside of the foam rod.

[0009] Furthermore, the light-transmitting enclosure structure is located between two adjacent top-layer wooden structural beams and is correspondingly arranged above the middle-layer wooden structural beams.

[0010] Furthermore, the light-transmitting enclosure structure also includes: The second structural sealant is used to fill the joint between the first structural metal strip clip and the wooden board, the joint between the first structural metal strip clip and the lower edge of the top layer wooden beam, and the joint between the second structural metal strip clip and the upper surface of the middle layer wooden beam. The third structural sealant is used to fill the joint between the first structural metal strip clip and the upper end of the light-transmitting plate, and the joint between the second structural metal strip clip and the lower end of the light-transmitting plate.

[0011] Furthermore, the first structural metal strip is located between two adjacent sections of the top-layer wooden structural beam, and its upper part abuts against the wooden sheath; the second structural metal strip is located at the bottom of the light-transmitting plate, and is fixedly connected to the middle-layer wooden structural beam located directly below it by self-tapping screws.

[0012] Furthermore, the light-transmitting plate is arranged between two adjacent sections of the top-layer wooden structure beam, with its upper end inserted into the first structural metal strip slot and its lower end inserted into the second structural metal strip slot; the rubber gasket is provided at the contact end of the light-transmitting plate with the first structural metal strip slot and the second structural metal strip slot.

[0013] Furthermore, the fireproof reinforcement structure also includes: long bolts, waterproof putty, and a paint layer. The long bolts fix the T-shaped fireproof steel plate to the side of the wooden beam. The waterproof putty fills the gap between the T-shaped fireproof steel plate and the wooden beam. The paint layer covers the outer surface of the waterproof putty and the T-shaped fireproof steel plate.

[0014] Furthermore, the flange width of the T-shaped fireproof steel plate is not less than 50 mm, and the web thickness is not less than 5 mm; the long bolts are arranged at intervals along the length direction of the T-shaped fireproof steel plate, with a spacing of not more than 300 mm.

[0015] According to a second aspect of the present invention, a construction method for an integrated waterproof, thermal insulation, and fireproof structure for wooden roofs is provided, characterized by comprising the following steps: S100: Install multiple layers of timber structure beams from bottom to top on the main structure of the building, wherein the multiple layers of timber structure beams include a top layer timber structure beam and a middle layer timber structure beam; S200: Wooden sheathing boards and fireproof gypsum boards are laid on the upper surface of the top-level wooden structural beam. Multiple SPF wooden joists are arranged at intervals on the upper surface of the fireproof gypsum boards and anchored into the interior of the top-level wooden structural beam with long bolts, so that an air gap is formed between the SPF wooden joists and the fireproof gypsum boards. An insulation layer is filled between adjacent SPF wooden joists, and then OSB boards, waterproof membrane layers and metal roofing panels are laid in sequence. The metal roofing panels are anchored into the interior of the SPF wooden joists with self-tapping screws. S300: Insert the eaves aluminum plate under the waterproof membrane layer so that the waterproof membrane layer covers the upper surface of the eaves aluminum plate. Fix the eaves aluminum plate to the end of the insulation layer and the end of the top wooden structure beam respectively by galvanized angle steel and anti-corrosion wood sealing plate. Fill the gap at the fixing node with foam rods and fill the outside of the foam rods with the first structural sealant of the same color as the eaves aluminum plate (9). S400: Install a light-transmitting enclosure structure at the joint between two adjacent sections of the top-level wooden structure beams. Place the first structural metal strip slot between the two adjacent sections of the top-level wooden structure beams and have its upper part abut against the wooden sheath. Place the second structural metal strip slot at the bottom of the light-transmitting plate and fix it to the middle-level wooden structure beam located directly below it with self-tapping screws. Vertically embed the light-transmitting plate between the two adjacent sections of the top-level wooden structure beams, so that its upper end is inserted into the first structural metal strip slot and its lower end is inserted into the second structural metal strip slot. Set rubber gaskets at the contact ends of the light-transmitting plate and the two slots. Fill the joint with second structural sealant and third structural sealant. S500: A T-shaped fireproof steel plate is embedded inside the side of the wooden beam, so that the outer surface of the T-shaped fireproof steel plate is flush with the outer surface of the wooden beam. It is fixed with long bolts, and waterproof putty is used to fill the gaps. The surface is then sanded and painted to match the color of the wooden beam.

[0016] In summary, compared with the prior art, the above-described technical solutions conceived by this invention can achieve the following beneficial effects: 1. This invention utilizes a multi-layered protective system consisting of fire-resistant gypsum board, an elevated ventilation gap, an insulation layer, and a composite waterproof layer, stacked sequentially from bottom to top on the top-level wooden structural beam. This system provides solid fire resistance, air insulation, thermal insulation, and composite waterproofing. Specifically, the SPF wooden joists are directly anchored into the top-level wooden structural beam using long bolts, creating an elevated ventilation gap between the joists and the fire-resistant gypsum board. This gap serves as both an air insulation layer and a ventilation and moisture-proof channel. The waterproof membrane layer is anchored to the metal roof panel using self-tapping screws, forming a composite waterproof barrier where the membrane's full adhesion and the metal panel's surface waterproofing work synergistically. Each functional layer structurally supports the others and functionally complements each other.

[0017] 2. This invention employs a waterproof membrane layer covering the upper surface of the eaves aluminum panel to form an overlapping and sealed structure. The inner side of the eaves aluminum panel is fixedly connected to the end of the insulation layer and the end of the top-floor wooden beam, forming a complete closed system with three sides, integrating the eaves waterproofing with the main roof waterproofing. Foam rods are used to fill the joints with matching structural sealant for sealing and finishing, ensuring reliable waterproofing while achieving a seamless aesthetic appearance of the eaves. In the light-transmitting enclosure structure, the light-transmitting panels are fixed by matching metal strip clips, with rubber gaskets at the contact ends. The elastic deformation of the rubber absorbs the expansion and contraction of the wooden structure caused by temperature and humidity changes, preventing damage to the light-transmitting panels due to stress concentration. Combined with seamless sealing treatment using transparent structural adhesive, this ensures the long-term sealing and integrity of the light-transmitting structure under the deformation conditions of the wooden structure.

[0018] 3. This invention embeds a T-shaped fireproof steel plate inside the side of the wooden beam, making its outer surface flush with the outer surface of the wooden beam. After filling the gaps with waterproof putty and finishing with paint of the same color, it is completely hidden under the surface of the wooden beam. This not only meets the supplementary fire protection requirements when the fire separation distance is insufficient, but also does not damage the overall wooden appearance of the building. All components are prefabricated in the factory using standardized profiles and assembled on site. They are formed immediately after installation and require no maintenance. Each component can be disassembled and fixed by connectors. After removal, cleaning and maintenance are required for overall reuse. This effectively reduces construction waste and material waste, shortens the construction cycle, and reduces project costs, meeting the development requirements of green building and prefabricated building. Attached Figure Description

[0019] Figure 1 This is a longitudinal cross-sectional structural diagram of an integral roof structure according to an embodiment of the present invention; Figure 2 This is a schematic diagram of the overall elevation of the roof of a house according to an embodiment of the present invention; Figure 3 for Figure 1 Enlarged schematic diagram of the composite roof structure in area A; Figure 4 for Figure 1 Enlarged schematic diagram of the eaves waterproofing structure in area B; Figure 5 for Figure 1 Enlarged schematic diagram of the light-transmitting enclosure structure in area C; Figure 6 This is a schematic diagram showing the installation position of the light-transmitting enclosure structure according to an embodiment of the present invention; Figure 7 This is a schematic diagram of the fireproof reinforcement structure according to an embodiment of the present invention.

[0020] Attached diagram labels: 1-Top layer timber structure beam; 2-Timber roofing board; 3-Fireproof gypsum board; 4-SPF timber keel; 5-Insulation layer; 6-OSB board; 7-Waterproof membrane layer; 8-Metal roofing panel; 9-Eaves aluminum panel; 10-Galvanized angle steel; 11-Anticorrosion-resistant wood panel; 12-Foam rod; 13-First structural sealant; 14-Second structural sealant; 15-First structural metal strip clamp; 16-Rubber gasket; 17-Third structural sealant; 18-Translucent panel; 19-Second structural metal strip clamp; 20-Self-tapping screw; 21-T-shaped fireproof steel plate; 22-Long bolt; 23-Middle layer timber structure beam. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention. Furthermore, the technical features involved in the various embodiments of this invention described below can be combined with each other as long as they do not conflict with each other.

[0022] like Figures 1-6 As shown, this embodiment of the invention provides an integrated waterproof, thermal insulation, and fireproof structure for wooden roofs, comprising: The load-bearing top-level wooden structural beam 1 and the composite roof layer, which is fixed to the upper surface of the top-level wooden structural beam 1 and laid in multiple layers, include: wooden sheathing 2, fireproof gypsum board 3, SPF wooden joists 4, insulation layer 5, OSB board 6, waterproof membrane layer 7, and metal roofing panel 8. The SPF wooden joists 4 are arranged in multiple intervals. The insulation layer 5 is filled between adjacent SPF wooden joists 4. The OSB board 6 is attached to the SPF wooden joists 4 and the insulation layer 5. The eaves waterproofing structure provided at the roof eaves includes an eaves aluminum plate 9 wrapped around the outer side of the eaves end. The eaves aluminum plate 9 extends below the waterproof membrane layer 7. The inner side of the eaves aluminum plate 9 is fixedly connected to the insulation layer 5 through galvanized angle steel 10 and anti-corrosion wood sealing plate 11. The lower end of the eaves aluminum plate 9 is fixedly connected to the end of the top floor wooden structure beam 1 through galvanized angle steel 10 and anti-corrosion wood sealing plate 11. The light-transmitting enclosure structure located between adjacent top-level wooden beams 1 includes a light-transmitting plate 18 embedded in the first structural metal strip slot 15 and the second structural metal strip slot 19, and a rubber pad 16 disposed at the contact end of the light-transmitting plate 18 with the first structural metal strip slot 15 and the second structural metal strip slot 19. The fireproof reinforcement structure installed on the side of the wooden beam includes a T-shaped fireproof steel plate 21 embedded inside the side of the wooden beam and with its outer surface flush with the outer surface of the wooden beam.

[0023] This invention overcomes the technical shortcomings of traditional wooden roof structures, such as single-function roofs and independent or even conflicting protective layers. It constructs a multi-layered, synergistic protective system on the top-level wooden beams, consisting of layers of wooden sheathing, fire-resistant gypsum board, spaced SPF wooden joists, and insulation, OSB board, waterproof membrane, and metal roof panels. These layers are stacked sequentially from bottom to top. The system provides solid fire resistance, air insulation, thermal insulation, and composite waterproofing. Furthermore, it innovatively incorporates aluminum eaves panels extending below the waterproof membrane layer, with full overlap of the membrane. Rubber cushioning pads are also installed between the wooden beams. The translucent enclosure structure is adapted to the deformation of the wooden structure, and T-shaped fireproof steel plates with flush outer surfaces are embedded in the sides of the wooden beams, with matching color decoration to achieve concealed fireproof reinforcement. This organically integrates the three core functions of waterproofing, heat preservation, and fireproofing with key nodes such as eaves waterproofing, light transmission, and fireproof reinforcement into a complete system. Each functional layer is independent, closely fitted, and works together, which greatly improves the waterproof reliability, heat preservation, fire safety, and structural durability of the wooden roof, while taking into account the building's aesthetics and construction convenience, truly realizing a multi-functional integrated system upgrade for wooden roofs.

[0024] like Figure 2 As shown, after the construction of the individual building structure is completed, multi-layer timber structure beams are hoisted sequentially from bottom to top according to the embedded parts in each concrete column and each concrete beam. The multi-layer timber structure beams include: a lower middle-layer timber structure beam 23 and an upper top-layer timber structure beam 1, with each layer of timber structure beams fixedly connected by connectors. The middle-layer timber structure beams 23 are evenly spaced along the longitudinal direction of the building, serving as the lower load-bearing main beams; the top-layer timber structure beams 1 are correspondingly arranged directly above each middle-layer timber structure beam 23, serving as secondary roof beams. An installation gap is formed between adjacent sections of the top-layer timber structure beam 1 for embedding the light-transmitting enclosure structure. All timber structure beams and embedded steel plates are pre-drilled in the factory, significantly improving accuracy and quality, shortening the construction period, reducing costs, and simultaneously reducing on-site pollution and construction safety hazards.

[0025] like Figure 3As shown, after the top-floor timber structure beam 1 is installed, the timber structure roof is constructed sequentially from the inside out. The timber sheathing 2 is fully laid and fixed to the top of the top-floor timber structure beam 1 with self-tapping screws. The timber sheathing 2 serves as the roof baseboard. Fireproof gypsum board 3 is laid on top of the timber sheathing 2 and fixed to the upper surface of the timber sheathing 2 with self-tapping screws. The fireproof gypsum board 3 serves as the first fire barrier, directly preventing the spread of flames to the timber structure roof truss in the event of a fire. SPF timber joists 4 are installed on the upper surface of the fireproof gypsum board 3 and anchored directly into the interior of the top-floor timber structure beam 1 after passing through the fireproof gypsum board 3 and the timber sheathing 2 with long bolts 22. Meanwhile, an elevated ventilation gap is formed between the SPF wooden joists 4 and the fireproof gypsum board 3. This gap extends continuously along the roof direction and serves a dual function: firstly, it acts as an air insulation layer, utilizing the low thermal conductivity of air to delay the transfer of fire heat to the wooden roof truss, forming a second fire barrier; secondly, it serves as a ventilation channel, allowing air to circulate freely under the joists, promptly expelling moisture from the interior of the wooden structure, preventing the wooden roofing boards from rotting due to long-term dampness, and reducing the risk of condensation and dampness. The upper surface of the insulation layer 5 filling the space between adjacent SPF wooden joists 4 is flush with the upper surface of the SPF wooden joists 4, forming a continuous and flat support base.

[0026] OSB board 6 is laid on the upper surface of SPF wooden joists 4 and insulation layer 5, and fixed to the top of SPF wooden joists 4 with self-tapping screws. A waterproof membrane layer 7 is laid on the upper surface of OSB board 6. A metal roofing panel 8 is laid on top of the waterproof membrane layer 7 and fixed to the upper surface of the waterproof membrane layer 7. The metal roofing panel 8 is anchored directly into the interior of SPF wooden joists 4 after passing through the metal roofing panel, waterproof membrane layer, and OSB board in sequence with self-tapping screws 20 equipped with waterproof rubber washers. The waterproof rubber washers between the self-tapping screw heads and the metal roofing panel, together with the structural adhesive around the screws, form a double seal to prevent leakage through the nail holes.

[0027] In this embodiment of the invention, extruded polystyrene board is selected as the insulation layer 5, self-adhesive SBS polymer modified bitumen waterproof membrane is selected as the waterproof membrane layer 7, and it is laid in a self-adhesive manner without the need for open flame operation. Aluminum-magnesium-manganese metal roofing panel is selected as the metal roofing panel 8, which is lightweight, highly corrosion-resistant, and has a long service life. It has both surface waterproofing and structural protection functions, and together with the waterproof membrane layer 7, it forms a composite waterproof barrier.

[0028] like Figure 4As shown, in the eaves waterproofing structure, the eaves aluminum plate 9 wraps around the outer side of the eaves end, with its side extending below the waterproof membrane layer 7. The waterproof membrane layer 7 covers the upper surface of the eaves aluminum plate 9 to form an overlapping seal, and the length of the eaves aluminum plate 9 extending below the waterproof membrane layer 7 is not less than 50 mm. The inner side of the eaves aluminum plate 9 is fixedly connected to the end of the insulation layer 5 by galvanized angle steel 10; the lower end of the eaves aluminum plate 9 is fixedly connected to the end of the top-floor wooden structure beam 1 by galvanized angle steel 10 and anti-corrosion wood sealing board 11. Foam rods 12 are filled into the gaps at each fixed joint, and the foam rods 12 serve as elastic backing material inside the gaps. The outer side of the foam rods 12 is filled with a first structural sealant 13, the color of which is the same as the color of the eaves aluminum plate 9.

[0029] like Figure 5 and Figure 6 As shown, in the light-transmitting enclosure structure, the light-transmitting panel 18 is arranged between two adjacent top-layer wooden structural beams 1. Its upper end is connected to the top-layer wooden structural beam 1 via a first structural metal strip latch 15, and its lower end is connected to the middle-layer wooden structural beam 23 via a second structural metal strip latch 19. The light-transmitting enclosure structure and the middle-layer wooden structural beams 23 are arranged in a one-to-one correspondence, with each middle-layer wooden structural beam 23 spaced apart along the roof direction, serving as the lower support foundation for each light-transmitting enclosure structure. The first structural metal strip latch 15 is located at the top of the light-transmitting panel 18, abutting against the wooden sheath 2 above, and simultaneously latching onto the upper edge of two adjacent top-layer wooden structural beams 1. The second structural metal strip latch 19 is located at the bottom of the light-transmitting panel 18, simultaneously latching onto the lower bottom side of two adjacent top-layer wooden structural beams 1. The upper edge of the light-transmitting panel 18 is inserted into the first structural metal strip slot 15, and the lower edge is inserted into the second structural metal strip slot 19. The left and right ends of the light-transmitting panel 18 are respectively connected to the top-layer wooden structural beams 1 on both sides, filling the joint between the two wooden structural beams. The second structural metal strip slot 19 is fixedly connected to the middle-layer wooden structural beam 23 located directly below it by self-tapping screws 20.

[0030] Rubber gaskets 16 are provided at the contact ends of the light-transmitting plate 18 with the first structural metal strip bayonet 15 and the second structural metal strip bayonet 19. These rubber gaskets serve as an elastic buffer layer between the light-transmitting plate and the rigid bayonet, using the elastic deformation of the rubber to absorb the expansion and contraction displacement of the wooden structure caused by changes in temperature and humidity, thus preventing the light-transmitting plate from being damaged due to stress concentration. The second structural sealant 14 is filled at the joints between the first structural metal strip bayonet 15 and the wooden veneer 2, the joints between the first structural metal strip bayonet 15 and the upper edge of the top-layer wooden beam 1, and the joints between the second structural metal strip bayonet 19 and the upper surface of the middle-layer wooden beam 23. The third structural sealant 17 is filled at the joints between the first structural metal strip bayonet 15 and the upper end of the light-transmitting plate 18, and the joints between the second structural metal strip bayonet 19 and the lower end of the light-transmitting plate 18.

[0031] In this embodiment of the invention, the light-transmitting plate 18 is made of hollow tempered glass or acrylic sheet. The colors of the first structural metal strip clip 15 and the second structural metal strip clip 19 are consistent with the colors of the middle layer wooden structure beam 23 and the top layer wooden structure beam 1, so that the metal clips are visually integrated with the wooden structure and do not damage the overall appearance of the building.

[0032] like Figure 7 As shown, in the fireproof reinforcement structure, a T-shaped fireproof steel plate 21 is embedded inside the side of the wooden beam, and the outer surface of the T-shaped fireproof steel plate 21 is flush with the outer surface of the wooden beam. Long bolts 22 pass through the web of the T-shaped fireproof steel plate 21, fixing the T-shaped fireproof steel plate 21 to the side of the wooden beam and anchoring it inside the beam. The gap between the T-shaped fireproof steel plate 21 and the wooden beam is filled with waterproof putty to fill the assembly gap between the steel plate and the wooden structure, preventing rainwater or moisture from seeping in. The waterproof putty and the outer surface of the T-shaped fireproof steel plate 21 are covered with a paint layer, the color of which matches the outer surface color of the wooden beam, completely concealing the fireproof steel plate beneath the surface of the wooden beam, making the fireproof reinforcement component invisible from the outside.

[0033] In this embodiment of the invention, the flange width of the T-shaped fireproof steel plate 21 is not less than 50mm and the web thickness is not less than 5mm; the long bolts 22 are arranged at intervals along the length direction of the T-shaped fireproof steel plate 21, with a spacing of not more than 300mm.

[0034] As another embodiment of the present invention, a construction method for an integrated waterproof, thermal insulation, and fireproof structure for wooden roofs is provided, comprising the following steps: S100: Install multiple layers of timber structure beams from bottom to top on the main structure of the building, the multiple layers of timber structure beams including the top layer timber structure beam 1 and the middle layer timber structure beam 23; S200: Wooden sheathing 2 and fireproof gypsum board 3 are laid on the upper surface of the top-level wooden structure beam 1. Multiple SPF wooden joists 4 are arranged at intervals on the upper surface of the fireproof gypsum board 3 and anchored into the interior of the top-level wooden structure beam 1 with long bolts 22, so that an air gap is formed between the SPF wooden joists 4 and the fireproof gypsum board 3. An insulation layer 5 is filled between adjacent SPF wooden joists 4, and then OSB board 6, waterproof membrane layer 7 and metal roofing panel 8 are laid in sequence. The metal roofing panel 8 is anchored into the interior of the SPF wooden joists 4 with self-tapping screws 20. S300: Extend the eaves aluminum plate 9 under the waterproof membrane layer 7 so that the waterproof membrane layer 7 covers the upper surface of the eaves aluminum plate 9. Use galvanized angle steel 10 and anti-corrosion wood sealing plate 11 to fix the eaves aluminum plate 9 to the end of the insulation layer 5 and the end of the top layer wooden structure beam 1 respectively. Fill the gap at the fixing node with foam rods 12 and fill the outside of the foam rods 12 with the first structural sealant 13 of the same color as the eaves aluminum plate 9. S400: Install a light-transmitting enclosure structure at the joint between two adjacent sections of the top-level wooden structure beam 1. Place the first structural metal strip slot 15 between the two adjacent sections of the top-level wooden structure beam 1 and make its upper part abut against the wooden sheath 2. Place the second structural metal strip slot 19 at the bottom of the light-transmitting plate 18 and fix it to the middle-level wooden structure beam 23 located directly below it with self-tapping screws 20. Vertically embed the light-transmitting plate 18 between the two adjacent sections of the top-level wooden structure beam 1, so that its upper end is inserted into the first structural metal strip slot 15 and its lower end is inserted into the second structural metal strip slot 19. Set rubber gaskets 16 at the contact ends of the light-transmitting plate 18 and the two slots. Fill the joint with second structural sealant 14 and third structural sealant 17. S500: A T-shaped fireproof steel plate 21 is embedded inside the side of the wooden beam, so that the outer surface of the T-shaped fireproof steel plate 21 is flush with the outer surface of the wooden beam. It is fixed by long bolts 22 to fill the gap with waterproof putty, and then sanded and painted so that the surface color matches the wooden beam.

[0035] Those skilled in the art will readily understand that the above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A waterproof, heat-insulating and fireproof integrated structure for wooden roof, characterized in that, include: The load-bearing top-floor timber beam (1) and the composite roof layer, which is fixed to the upper surface of the top-floor timber beam (1) and laid in multiple layers, the composite roof layer comprising: The roof consists of a wooden roof board (2), a fireproof gypsum board (3), an SPF wooden joists (4), an insulation layer (5), an OSB board (6), a waterproof membrane layer (7), and a metal roof panel (8). The SPF wooden joists (4) are arranged in multiple intervals. The insulation layer (5) is filled between adjacent SPF wooden joists (4). The OSB board (6) is bonded to the SPF wooden joists (4) and the insulation layer (5). The eaves waterproof structure provided at the roof eaves includes an eaves aluminum plate (9) wrapped around the outer side of the eaves end. The eaves aluminum plate (9) extends below the waterproof membrane layer (7). The inner side of the eaves aluminum plate (9) is fixedly connected to the insulation layer (5) by galvanized angle steel (10). The lower end of the eaves aluminum plate (9) is fixedly connected to the end of the top floor wooden structure beam (1) by galvanized angle steel (10) and anti-corrosion wood sealing board (11). The light-transmitting enclosure structure located between adjacent top-level wooden beams (1) includes a light-transmitting plate (18) embedded in the first structural metal strip slot (15) and the second structural metal strip slot (19), and a rubber pad (16) disposed at the contact end of the light-transmitting plate (18) with the first structural metal strip slot (15) and the second structural metal strip slot (19). The fire-resistant reinforcement structure installed on the side of the wooden beam includes a T-shaped fireproof steel plate (21) embedded inside the side of the wooden beam and whose outer surface is flush with the outer surface of the wooden beam.

2. The waterproof, heat-insulating and fireproof integrated structure of a wooden roof according to claim 1, characterized in that, The SPF wood joists (4) are anchored into the interior of the top-floor wood structure beam (1) by long bolts (22), forming an overhead ventilation gap with the fireproof gypsum board (3); the metal roof panel (8) is anchored into the interior of the SPF wood joists (4) by self-tapping screws (20) with water-stop rubber gaskets.

3. The waterproof, heat-insulating and fireproof integrated structure of a wooden roof according to claim 1 or 2, characterized in that, The eaves waterproof structure also includes: foam rods (12) and first structural sealant (13), wherein the foam rods (12) are filled in the fixed connection gaps between the eaves aluminum plate (9) and the insulation layer (5) and the ends of the top wooden structure beam (1); and the first structural sealant (13) is filled on the outside of the foam rods (12).

4. The integrated waterproof, heat-insulating, and fireproof structure for wooden roofs according to claim 1 or 2, characterized in that, The light-transmitting enclosure structure is located between two adjacent top-level wooden beams (1) and is correspondingly arranged above the middle-level wooden beams (23).

5. The integrated waterproof, heat-insulating, and fireproof structure for wooden roofs according to claim 4, characterized in that, The light-transmitting enclosure structure also includes: The second structural sealant (14) is filled at the joint between the first structural metal strip clip (15) and the wooden board (2), the joint between the first structural metal strip clip (15) and the lower edge of the top layer wooden structure beam (1), and the joint between the second structural metal strip clip (19) and the upper surface of the middle layer wooden structure beam (23). The third structural sealant (17) is filled at the joint between the first structural metal strip buckle (15) and the upper end of the light-transmitting plate (18), and at the joint between the second structural metal strip buckle (19) and the lower end of the light-transmitting plate (18).

6. The integrated waterproof, heat-insulating, and fireproof structure for wooden roofs according to claim 1 or 2, characterized in that, The first structural metal strip slot (15) is located between two adjacent top-layer wooden structural beams (1), and its upper part abuts against the wooden sheath (2); the second structural metal strip slot (19) is located at the bottom of the light-transmitting plate (18), and is fixedly connected to the middle-layer wooden structural beam (23) located directly below it by self-tapping screws (20).

7. The integrated waterproof, heat-insulating, and fireproof structure for wooden roofs according to claim 1 or 2, characterized in that, The light-transmitting plate (18) is arranged between two adjacent sections of the top-layer wooden structure beam (1), with its upper end inserted into the first structural metal strip slot (15) and its lower end inserted into the second structural metal strip slot (19); the rubber pad (16) is provided at the contact end of the light-transmitting plate (18) with the first structural metal strip slot (15) and the second structural metal strip slot (19).

8. The integrated waterproof, heat-insulating, and fireproof structure for wooden roofs according to claim 1 or 2, characterized in that, The fireproof reinforcement structure also includes: long bolts (22), waterproof putty and paint layer, wherein the long bolts (22) fix the T-shaped fireproof steel plate (21) to the side of the wooden structure beam; the waterproof putty fills the gap between the T-shaped fireproof steel plate (21) and the wooden structure beam; and the paint layer covers the outer surface of the waterproof putty and the T-shaped fireproof steel plate (21).

9. The integrated waterproof, heat-insulating, and fireproof structure for wooden roofs according to claim 1 or 2, characterized in that, The flange width of the T-shaped fireproof steel plate (21) is not less than 50 mm and the web thickness is not less than 5 mm; the long bolts (22) are arranged at intervals along the length direction of the T-shaped fireproof steel plate (21) with a spacing of not more than 300 mm.

10. A construction method for an integrated waterproof, thermal insulation, and fireproof structure for wooden roofs according to any one of claims 1-9, characterized in that, Includes the following steps: S100: Install multi-layer timber structure beams from bottom to top on the main structure of the building, the multi-layer timber structure beams including the top timber structure beam (1) and the middle timber structure beam (23). S200: Wood sheathing (2) and fireproof gypsum board (3) are laid on the upper surface of the top-level wood structure beam (1). Multiple SPF wood joists (4) are arranged at intervals on the upper surface of the fireproof gypsum board (3) and anchored into the interior of the top-level wood structure beam (1) by long bolts (22), so that an air-supported ventilation gap is formed between the SPF wood joists (4) and the fireproof gypsum board (3). An insulation layer (5) is filled between adjacent SPF wood joists (4), and then OSB board (6), waterproof membrane layer (7) and metal roof panel (8) are laid in sequence. The metal roof panel (8) is anchored into the interior of the SPF wood joists (4) by self-tapping screws (20). S300: Insert the eaves aluminum plate (9) under the waterproof membrane layer (7) so that the waterproof membrane layer (7) covers the upper surface of the eaves aluminum plate (9). Use galvanized angle steel (10) and anti-corrosion wood sealing board (11) to fix the eaves aluminum plate (9) to the end of the insulation layer (5) and the end of the top floor wooden structure beam (1) respectively. Fill the gap at the fixed node with foam rods (12) and fill the outside of the foam rods (12) with the first structural sealant (13) of the same color as the eaves aluminum plate (9). S400: Install a light-transmitting enclosure structure at the joint between two adjacent top-level wooden beams (1), place the first structural metal strip slot (15) between two adjacent top-level wooden beams (1) and make its upper part abut against the wooden board (2), place the second structural metal strip slot (19) at the bottom of the light-transmitting plate (18) and fix it to the middle-level wooden beam (23) located directly below it with self-tapping screws (20), vertically embed the light-transmitting plate (18) between two adjacent top-level wooden beams (1), so that its upper end is inserted into the first structural metal strip slot (15) and its lower end is inserted into the second structural metal strip slot (19), set rubber gaskets (16) at the contact ends of the light-transmitting plate (18) and the two slots, and fill the joint with second structural sealant (14) and third structural sealant (17). S500: A T-shaped fireproof steel plate (21) is embedded inside the side of the wooden beam, so that the outer surface of the T-shaped fireproof steel plate (21) is flush with the outer surface of the wooden beam. It is fixed by long bolts (22) to fill the gap with waterproof putty and to polish and paint so that the surface color is consistent with the wooden beam.

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