Rigid foam polyurethane heat preservation and waterproof integrated structure
By installing compartmentalized wooden strips, a fine stone concrete nail-holding leveling layer, and steel mesh binding connections on a wooden-based tiled roof, the problem of integrated thermal insulation and waterproofing of rigid polyurethane foam in a wooden-based tiled roof is solved, achieving a safer connection and faster construction speed.
Patent Information
- Application Number
- CN202520147081.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-22
- Publication Date
- 2025-12-30
- Estimated Expiration
- 2035-01-22
AI Technical Summary
Rigid polyurethane foam only serves as insulation in the application of wooden-based tile roofs, failing to fully demonstrate its integrated insulation and waterproofing performance, and the construction speed is relatively slow.
The rigid polyurethane foam material is confined by compartmentalized wooden strips, combined with a fine aggregate concrete nail-holding leveling layer and steel mesh binding to form an integrated rigid polyurethane foam insulation and waterproofing structure. The connection stability is enhanced by fixing with compartmentalized wooden strips and screw heads, and water-guiding strips and tile strips are set in the fine aggregate concrete layer to speed up construction.
It achieves a safe and secure connection between rigid polyurethane foam and the wooden base layer and tile roof, improving the thermal insulation and waterproofing effect and speeding up the construction process.
Smart Images

Figure CN223738862U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of rigid polyurethane foam thermal insulation and waterproofing technology, specifically a rigid polyurethane foam integrated thermal insulation and waterproofing structure. Background Technology
[0002] Rigid polyurethane foam is a new type of synthetic material that combines thermal insulation and waterproofing functions. It is lightweight, high-strength, heat-insulating, sound-insulating, flame-retardant, cold-resistant, corrosion-resistant, non-absorbent, and easy and quick to construct. Its products have advantages in thermal insulation, heat preservation, and waterproofing that other traditional thermal insulation materials cannot match.
[0003] However, in actual applications of rigid polyurethane foam in wooden-base tiled roof projects, rigid polyurethane foam is mostly placed on the inside of the wooden base and fixed between the purlins and the roofing board with a support mesh. Rigid polyurethane foam only plays a role in heat preservation and does not fully demonstrate its integrated heat preservation and waterproofing performance characteristics. The internal insulation setting also makes the overall heat preservation performance of the building poor.
[0004] To address this, we propose an integrated rigid polyurethane foam insulation and waterproofing structure. Utility Model Content
[0005] To address the problems mentioned in the background art, this utility model provides an integrated rigid polyurethane foam insulation and waterproofing structure. The connection method of this novel structure can effectively improve the insulation and waterproofing effect of wooden tile roofs, achieve integrated insulation and waterproofing, and accelerate the construction speed.
[0006] To achieve the above objectives, this utility model provides the following technical solution: a rigid polyurethane foam insulation and waterproof integrated structure, including wooden purlins, a wooden sheathing board at the top of the wooden purlins, a waterproof membrane padding layer at the top of the wooden sheathing board, compartmentalized wooden strips at the top of the waterproof membrane padding layer, and type II rigid polyurethane foam at the top of the compartmentalized wooden strips.
[0007] Preferably, the top of the type II rigid polyurethane foam is provided with a fine aggregate concrete nail-holding leveling layer, and the interior of the fine aggregate concrete nail-holding leveling layer is provided with a steel mesh.
[0008] Preferably, the top of the fine aggregate concrete nail-holding leveling layer is provided with a water-guiding strip, and the water-guiding strip is in the shape of a cuboid.
[0009] Preferably, the top of the water-running strip is provided with a tile-hanging strip, and the tile-hanging strip is in the shape of a cuboid.
[0010] Preferably, a tile is provided at the top of the tile strip.
[0011] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0012] 1. This utility model uses compartmentalized wooden strips to restrict the rigid polyurethane foam material within the wooden base layer, preventing material overflow and slippage. Screw heads are pre-installed on the compartmentalized wooden strips to connect with the reinforcing mesh embedded in the fine aggregate concrete nail-holding layer. This effectively prevents the overall slippage of the insulation layer, ensuring a safer and more secure connection between the rigid polyurethane foam material and the wooden base layer and tiled roof, achieving integrated insulation and waterproofing, and significantly improving construction speed. Attached Figure Description
[0013] Figure 1 This is a schematic diagram of the structure of this utility model from below;
[0014] Figure 2 This is a schematic diagram of the left-side structure of this utility model.
[0015] In the diagram: 1. Tiles; 2. Battens; 3. Water-guiding strips; 4. Fine aggregate concrete nail-holding leveling layer; 5. Type II rigid polyurethane foam; 6. Compartmentalized wooden strips; 7. Waterproof membrane underlayment; 8. Wooden sheathing; 9. Wooden purlins. Detailed Implementation
[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0017] like Figures 1 to 2 As shown, this utility model provides an integrated rigid polyurethane foam insulation and waterproofing structure, including wooden purlins 9, wooden sheathing 8 at the top of the wooden purlins 9, and a waterproof membrane padding layer 7 at the top of the wooden sheathing 8. Compartmentalized wooden strips 6, each 30mm x 30mm in size, are installed at the top of the waterproof membrane padding layer 7 along the roof slope direction. A horizontal compartmentalized wooden strip 6 is installed at the bottom eaves of the sloping roof to prevent the Type II rigid polyurethane foam 5 from sliding down. M10 galvanized screws, each 900mm x 900mm in size, are used to fix the compartmentalized wooden strips 6 to the wooden sheathing 8, with the screw heads protruding 30mm from the insulation layer. Type II rigid polyurethane foam 5 is sprayed in layers: first, a 30mm layer flush with the compartments is sprayed as the insulation layer, and then a 20mm layer is sprayed as both a waterproof and insulation layer.
[0018] Specifically, the top of the Type II rigid polyurethane foam 5 is provided with a fine stone concrete nail-holding leveling layer 4, and the fine stone concrete nail-holding leveling layer 4 is internally equipped with a steel mesh. The fine stone concrete nail-holding leveling layer 4 is laid on the top of the Type II rigid polyurethane foam 5, and the thickness of the fine stone concrete nail-holding leveling layer 4 is 35mm. A 6m×6m partition joint is set, and a 150mm×150mm steel mesh is installed inside. It is firmly tied to the pre-reserved screw heads of the compartment wooden strips 6 with No. 18 galvanized steel wire to prevent slippage.
[0019] Furthermore, a water-guiding strip 3 is provided at the top of the fine aggregate concrete nail-holding leveling layer 4, and the water-guiding strip 3 is in the shape of a cuboid. The water-guiding strip 3 is installed at the top of the fine aggregate concrete nail-holding leveling layer 4, and the water-guiding strip 3 is 40mm×20mm in size.
[0020] Furthermore, a tile hanger 2 is provided at the top of the water-running strip 3. The tile hanger 2 is rectangular in shape and is installed at the top of the water-running strip 3. The tile hanger 2 is 30mm×30mm in size.
[0021] It is worth noting that a tile 1 is provided at the top of the batten strip 2, and the tile 1 is fixed after installation.
[0022] Among them, Type II rigid polyurethane foam 5 and waterproof membrane padding layer 7 are existing technologies and will not be described in detail; at the same time, this utility model also includes a power supply, controller and switch, etc., which are not the main technical points of this patent and will not be described in detail; the "front, back, left and right" perspectives of this device are as follows: Figure 1 The direction shown in the diagram is the reference.
[0023] Working principle: During use, the operator first installs the wooden sheathing 8 on top of the wooden purlins 9, and then lays a waterproof membrane underlayment 7 on top of the sheathing 8. On top of the waterproof membrane underlayment 7, compartmentalized wooden strips 6 are installed along the roof slope direction. The compartmentalized wooden strips 6 are 30mm x 30mm in size. A horizontal compartmentalized wooden strip 6 is installed at the bottom eaves of the pitched roof to prevent the Type II rigid polyurethane foam 5 from sliding down. M10 galvanized screws (900mm x 900mm) are used to fix the compartmentalized wooden strips 6 to the sheathing 8, with the screw heads protruding 30mm from the insulation layer. Type II rigid polyurethane foam 5 is then sprayed in layers, with the first 30mm layer flush with the compartments serving as the insulation layer. Then, a 20mm layer is sprayed on top as a waterproof and heat insulation layer. A fine stone concrete nail-holding leveling layer 4 with a thickness of 35mm is laid on top of the Type II rigid polyurethane foam 5. A 6m×6m partition joint is set with a 150mm×150mm steel mesh inside. It is tied firmly to the pre-reserved screw heads of the compartment wooden strips 6 with No. 18 galvanized steel wire to prevent slippage. A water-guiding strip 3 with a model of 40mm×20mm is installed on top of the fine stone concrete nail-holding leveling layer 4. A tile-hanging strip 2 with a model of 30mm×30mm is installed on top of the water-guiding strip 3. A tile 1 with a model of 1 is laid on top of the tile-hanging strip 2 and fixed.
[0024] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.
[0025] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A hard foam polyurethane thermal and waterproof integrated structure, comprising a wooden purlin (9), characterized in that: The top end of the wood purlin (9) is provided with a wood batten (8), the top end of the wood batten (8) is provided with a waterproof roll mat layer (7), the top end of the waterproof roll mat layer (7) is provided with a warehouse wood strip (6), and the top end of the warehouse wood strip (6) is provided with a type II hard foam polyurethane (5).
2. The hard-foam polyurethane thermal and waterproof integrated structure according to claim 1, characterized in that: The top end of the type II hard foam polyurethane (5) is provided with a fine stone concrete nail-holding leveling layer (4), and the fine stone concrete nail-holding leveling layer (4) is internally provided with a steel mesh.
3. The hard-foam polyurethane thermal and waterproof integrated structure according to claim 2, characterized in that: The top end of the fine stone concrete nail-holding leveling layer (4) is provided with a water following strip (3), and the shape of the water following strip (3) is a cuboid.
4. The hard-foam polyurethane thermal and waterproof integrated structure according to claim 3, characterized in that: The top end of the water following strip (3) is provided with a batten (2), and the shape of the batten (2) is a cuboid.
5. The hard-foam polyurethane thermal and waterproof integrated structure according to claim 4, characterized in that: The top end of the batten (2) is provided with a block tile (1).