Wooden roof structure for repairing traditional building

By installing a three-layer waterproof structure on the wooden roof, consisting of a waterproof and breathable membrane, a corrugated asphalt waterproof board, and roof tiles, combined with the lowering of the wooden roof truss and steel plate reinforcement, the problems of increasing roof height and construction safety during the restoration of the wooden roof were solved, thus improving the thermal insulation and waterproof performance and maintaining the historical appearance.

CN223781199UActive Publication Date: 2026-01-09都市发展设计集团有限公司
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Patent Information

Application Number
CN202520350674.8
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-03
Publication Date
2026-01-09
Estimated Expiration
2035-03-03

AI Technical Summary

Technical Problem

Existing wooden roof repair techniques increase roof height, affecting historical appearance, and open flame operations on the roll waterproofing layer endanger the safety of the wooden structure.

Method used

A waterproof and breathable membrane is used as the first layer of waterproofing, corrugated asphalt waterproofing board as the second layer, and roof tiles as the third layer. Combined with the installation of the wooden roof truss with steel plate reinforcement, the original roof height is maintained to ensure construction safety.

Benefits of technology

It improves the thermal insulation and waterproofing performance of wooden roofs, preserves the historical appearance of traditional buildings, and enhances construction safety and ease of operation.

✦ Generated by Eureka AI based on patent content.

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    Figure CN223781199U_ABST
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Abstract

The utility model relates to the technical field of building structures, and provides a wooden roof structure for repairing a traditional building, which comprises a wooden roof truss, a wooden purline, a wooden roof boarding, a wooden keel, an insulation board, a waterproof breathable film, a ventilation waterproof cushion layer, a wooden roof batten and roof tiles, the wooden roof frames are arranged at the two ends above the brick walls; wooden purlines are laid on the wooden roof truss at intervals, and wooden roof boarding is laid on the wooden purlines; wooden keels are laid on the wooden roof boarding at intervals; an insulation board is embedded between every two adjacent wooden keels; waterproof breathable films are laid on the wood keels and the heat preservation plates; a ventilating waterproof cushion layer is arranged on the waterproof breathable film; wooden roof battens are laid on the ventilation waterproof cushion layer at intervals; roof tiles are bound and hung on the wood roof battens. The heat preservation and waterproof performance of the wooden roof can be effectively improved, and the original roof historical style and appearance of a traditional building can be maintained to the maximum extent.
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Description

Technical Field

[0001] This utility model relates to the field of building structure technology, and in particular to a wooden roof structure for the repair of traditional buildings. Background Technology

[0002] In the field of traditional building restoration, there are two key points for the repair of wooden roofs: first, to improve the thermal insulation and waterproofing performance of the wooden roof; and second, the appearance of the repaired roof must be consistent with the historical style.

[0003] Currently, the commonly used technique for repairing wooden roofs in engineering practice involves laying an insulation layer, a waterproof membrane, weatherstripping, battens, and roof tiles on the existing wooden roofing. However, this method has two drawbacks. First, compared to traditional wooden roof structures, this repair method increases the roof height due to the added insulation and waterproofing materials, leading to connection problems at the eaves and inconsistent with the historical appearance. Second, the waterproof membrane application requires open flame work, which affects the safety of the wooden structure. Utility Model Content

[0004] This utility model mainly addresses the technical problems of current wooden roof repair technologies, such as the increase in roof height due to the addition of thermal insulation and waterproofing materials, which is inconsistent with the historical appearance, and the need for open flame operations when using rolled waterproofing layers, which affects the safety of the wooden structure. It proposes a wooden roof structure for the repair of traditional buildings, which can effectively improve the thermal insulation and waterproofing performance of wooden roofs and maximize the preservation of the original historical appearance of traditional buildings.

[0005] This utility model provides a wooden roof structure for the repair of traditional buildings, including: wooden roof frame, wooden purlins, wooden sheathing, wooden joists, insulation board, waterproof and breathable membrane, ventilated and waterproof underlayment, wooden battens and roof tiles;

[0006] The wooden roof truss is set at both ends above the brick wall; wooden purlins are laid at intervals on the wooden roof truss, and wooden sheathing boards are laid on the wooden purlins;

[0007] Wooden joists are laid at intervals on the wooden veneer; insulation boards are embedded between adjacent wooden joists; a waterproof and breathable membrane is laid on the wooden joists and insulation boards.

[0008] A ventilated and waterproof padding layer is provided on the waterproof and breathable membrane; wooden battens are laid at intervals on the ventilated and waterproof padding layer; roof tiles are tied to the wooden battens.

[0009] Preferably, steel plate reinforcements are provided at the root of both ends of the wooden roof truss;

[0010] The steel plate reinforcement is fixed inside the top of the brick wall.

[0011] Preferably, the wooden roof truss is installed with the lowered slab.

[0012] Preferably, the width of the wooden keel is 50mm, the thickness is 50-80mm, and the spacing is 400-600mm.

[0013] Preferably, the insulation board is a G-type thermosetting EPS insulation board.

[0014] Preferably, the insulation board has a thickness of 50-80mm.

[0015] Preferably, the thickness of the waterproof and breathable membrane is 0.49 to 0.65 mm.

[0016] Preferably, the ventilated and waterproof underlayment is made of corrugated asphalt waterproof board.

[0017] Preferably, the corrugated asphalt waterproof membrane has a thickness of 2.6mm ± 5%, a length of 2000mm, and a width of 1010~1110mm.

[0018] Preferably, the width of the wooden batten strip is 30mm and the thickness is 30mm.

[0019] The wooden roof structure for traditional building repair provided by this utility model has the following advantages compared with the prior art:

[0020] 1. A waterproof and breathable membrane is set as the first layer of waterproofing, a ventilated waterproof layer is set as the second layer of waterproofing, the ventilated waterproof layer is made of corrugated asphalt waterproof board, and the roof tiles are used as the third layer of waterproofing; the present invention uses corrugated asphalt waterproof board on wooden roof structure and forms a three-layer waterproofing system, which effectively improves the thermal insulation and waterproofing performance of wooden roof.

[0021] 2. The wooden roof truss is lowered and reinforced with steel plate fasteners, maintaining the original roof height and preserving the historical appearance. From an aesthetic perspective, this maximizes the preservation of the original historical appearance of the traditional building's roof. Furthermore, the steel plate fasteners reinforce and protect the wooden roof truss from corrosion.

[0022] 3. This utility model can effectively improve the performance of wooden roofs, and the construction operation is convenient and safe, while ensuring that the roof height remains unchanged and does not affect the historical appearance. Attached Figure Description

[0023] Figure 1 This is a structural schematic diagram of a wooden roof structure for traditional building repair provided by this utility model;

[0024] Figure 2 This is a layered cross-sectional view of a wooden roof structure for traditional building repair provided by this utility model. Reference numerals: 1. Brick wall; 2. Wooden roof truss; 3. Steel plate reinforcement; 4. Wooden purlin; 5. Wooden sheath; 6. Wooden joists; 7. Insulation board; 8. Waterproof and breathable membrane; 9. Ventilated and waterproof underlayment; 10. Wooden battens; 11. Roofing tile. Detailed Implementation

[0025] To make the technical problems solved by this utility model, the technical solutions adopted, and the technical effects achieved clearer, this utility model 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 for explaining this utility model and not for limiting it. Furthermore, it should be noted that, for ease of description, only the parts related to this utility model are shown in the accompanying drawings, not all of them.

[0026] like Figure 1-2 As shown in the figure, the present invention provides a wooden roof structure for the repair of traditional buildings, comprising: a wooden roof frame 2, wooden purlins 4, wooden sheathing boards 5, wooden joists 6, insulation boards 7, a waterproof and breathable membrane 8, a ventilated and waterproof underlayment 9, wooden battens 10, and roof tiles 11.

[0027] The wooden roof truss 2 is installed at both ends above the brick wall 1 of the traditional building; steel plate reinforcement members 3 are installed at the base of both ends of the wooden roof truss 2; the steel plate reinforcement members 3 are fixed inside the top of the brick wall 1. The steel plate reinforcement members 3 not only serve to fix the wooden roof truss 2, but also to protect the base of the wooden roof truss 2, which is prone to rot. The wooden roof truss 2 is installed with the floor lowered. Specifically, the wooden roof truss 2 is installed after being lowered by one brick layer height.

[0028] Wooden purlins 4 are laid at intervals on the wooden roof truss 2, and wooden sheathing boards 5 are laid on the wooden purlins 4.

[0029] Wooden joists 6 are laid at intervals on the wooden joists 5; insulation boards 7 are embedded between adjacent wooden joists 6; the wooden joists 6 can prevent the insulation boards 7 from slipping. A waterproof and breathable membrane 8 is laid on the wooden joists 6 and the insulation boards 7, and the waterproof and breathable membrane 8 serves as the first layer of waterproofing.

[0030] A ventilated and waterproof pad 9 is provided on the waterproof and breathable membrane 8. The ventilated and waterproof pad 9 is made of corrugated asphalt waterproof board. The corrugated asphalt waterproof board is safe and convenient to construct, and can serve both as a drainage strip and effectively protect the insulation layer. The ventilated and waterproof pad 9 serves as a second layer of waterproofing.

[0031] Wooden battens 10 are laid at intervals on the ventilated and waterproof underlayment 9 (corrugated asphalt waterproof board), with the center spacing according to the specifications of the wooden battens 10; roof tiles 11 are tied on the wooden battens 10, and the roof tiles 11 serve as the third layer of waterproofing.

[0032] The specific parameters of each component of the wooden roof structure used in this utility model for the repair of traditional buildings are as follows: The width of the wooden joists 6 is 50mm, the thickness is 50-80mm, and the spacing is 400-600mm; preferably, the width of the wooden joists 6 is 50mm, the thickness is 80mm, and the spacing is 400mm. The insulation board 7 is a type G thermosetting EPS insulation board (Grade A). The thickness of the insulation board 7 is 50-80mm; preferably, the thickness is 50mm. The thickness of the waterproof and breathable membrane 8 is 0.49-0.65mm; preferably, the thickness is 0.49mm. The ventilated and waterproof underlayment 9 is a corrugated asphalt waterproof board, the thickness of which is 2.6mm±5%, the length is 2000mm, and the width is 1010-1110mm, preferably 1010mm. The width of the wooden batten strips 10 is 30mm and the thickness is 30mm.

[0033] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it; although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications to the technical solutions described in the foregoing embodiments, or equivalent substitutions for some or all of the technical features, do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. A wooden roof structure for traditional building repair, characterized in that, include: Wooden roof truss (2), wooden purlins (4), wooden roofing boards (5), wooden joists (6), insulation boards (7), waterproof and breathable membrane (8), ventilated and waterproof underlayment (9), wooden battens (10) and roof tiles (11); The wooden roof truss (2) is set at both ends above the brick wall (1); wooden purlins (4) are laid at intervals on the wooden roof truss (2), and wooden sheathing boards (5) are laid on the wooden purlins (4); Wooden joists (6) are laid at intervals on the wooden joists (5); insulation boards (7) are embedded between adjacent wooden joists (6); a waterproof and breathable membrane (8) is laid on the wooden joists (6) and insulation boards (7); A ventilated and waterproof padding layer (9) is provided on the waterproof and breathable membrane (8); wooden battens (10) are laid at intervals on the ventilated and waterproof padding layer (9); roof tiles (11) are tied on the wooden battens (10).

2. The wooden roof structure for traditional building repair according to claim 1, characterized in that, Steel plate reinforcement members (3) are installed at the root of both ends of the wooden roof truss (2); The steel plate reinforcement (3) is fixed inside the top of the brick wall (1).

3. The wooden roof structure for traditional building repair according to claim 2, characterized in that, The wooden roof truss (2) is installed by lowering the slab.

4. The wooden roof structure for traditional building repair according to claim 1, characterized in that, The width of the wooden keel (6) is 50mm, the thickness is 50-80mm, and the spacing is 400-600mm.

5. The wooden roof structure for traditional building repair according to claim 1, characterized in that, The insulation board (7) is a G-type thermosetting EPS insulation board.

6. The wooden roof structure for traditional building repair according to claim 5, characterized in that, The insulation board (7) has a thickness of 50-80mm.

7. The wooden roof structure for traditional building repair according to claim 1, characterized in that, The thickness of the waterproof and breathable membrane (8) is 0.49 to 0.65 mm.

8. The wooden roof structure for traditional building repair according to claim 1, characterized in that, The ventilation and waterproofing layer (9) is made of corrugated asphalt waterproofing board.

9. The wooden roof structure for traditional building repair according to claim 8, characterized in that, The corrugated asphalt waterproof membrane has a thickness of 2.6mm ± 5%, a length of 2000mm, and a width of 1010~1110mm.

10. The wooden roof structure for traditional building repair according to claim 1, characterized in that, The width of the wooden shingle strip (10) is 30mm and the thickness is 30mm.