What is the function of polyurethane hard bubble waterproof and insulation integrated board

Polyurethane hard bubble waterproof and insulation integrated board is a new type of building material integrating waterproofing, insulation, structural support and other functions. Its core role is reflected in efficient insulation, reliable waterproofing, lightweight structure, convenient construction, etc. It is suitable for building roofs, walls, cold storages, industrial factories and other scenarios. The following is an analysis of the specific functions:

1. Efficient insulation and heat insulation to reduce energy consumption

Low thermal conductivity

The thermal conductivity of polyurethane hard bubbles is only 0.022~0.028 W/(m·K), which is far lower than that of traditional insulation materials (such as polystyrene plate 0.039 W/(m·K), rock wool 0.035~0.045 W/(m·K)). This means that at the same thickness, the thermal insulation performance of polyurethane hard bubbles can significantly reduce heat exchange inside and outside the building and reduce the energy consumption of air conditioners, heating and other equipment.

Continuous seamless insulation layer

The integrated board forms a continuous insulation layer through on-site spraying or prefabrication processes, avoiding the thermal bridge effect at the splicing of traditional materials (such as plate gaps, nail holes, etc.), further improving the overall insulation effect.

Long-term stability

The closed cell rate of polyurethane hard bubbles is as high as more than 95%, and the water absorption rate is extremely low (≤3%). It can effectively resist the influence of humid environment on insulation performance and ensure that the insulation effect does not decay during long-term use.

2. Reliable waterproof and moisture-proof, protect the building structure

Overall waterproof layer

During the foaming process, polyurethane hard foam can form an adhesive layer with the base layer (such as concrete and metal) to form a seamless waterproof film, effectively preventing rainwater and groundwater from penetration. Its anti-seepage pressure can reach more than 1.5MPa, which is much higher than ordinary waterproof coils (0.3~0.6MPa).

Moisture-proof and air-repellent

The closed-cell structure makes the polyurethane hard bubbles have excellent moisture-proof properties, which can prevent indoor water vapor from penetrating into the insulation layer, and avoid deterioration of insulation performance and structural corrosion caused by condensation. For example, in cold storage applications, it can effectively prevent frost from condensing and extend the service life of the equipment.

Aging resistance

High-quality polyurethane hard foam can maintain stable performance in environments such as ultraviolet rays, ozone, chemical corrosion, etc., and its service life can reach more than 25 years, far exceeding traditional waterproof materials (such as asphalt rolls 5 to 10 years).

3. Lightweight and high-strength structure to reduce construction load

Low-density design

The density of polyurethane hard bubbles is only 30~50 kg/m³, which is only 1/50~1/80 of concrete (2400 kg/m³), which can significantly reduce the building's own weight and reduce structural load. For example, in roofing projects, the use of integrated slabs can reduce beam and column cross-section size and save steel and concrete usage.

High-strength support

Despite the low density, the compressive strength of polyurethane hard bubbles can reach 150~300 kPa, which can withstand a certain load without deformation. By combining with metal surface layers (such as aluminum foil, color steel plate), the bending and impact resistance of the board can be further improved, and the load bearing requirements of roofs, walls and other structures can be met.

4. Convenient and efficient construction, shortening construction period

Integrated design

Combining the waterproof layer and the insulation layer into one reduces multiple processes such as waterproof roll laying, insulation board installation, and protective layer construction in traditional processes, greatly shortening the construction cycle. For example, in roofing projects, integrated panels can be laid directly without the need for additional leveling layers, waterproofing layers and protective layers.

Adapt to complex grassroots

Polyurethane hard bubbles can be directly attached to the special-shaped base layer (such as curved roofs, pipes) through the spraying process to form a seamless insulation and waterproof layer, solving the problems of traditional materials in complex shape construction.

Environmentally friendly and pollution-free

The construction process does not require open flame operations (such as laying waterproof coils through hot melting), which reduces fire risks and harmful gas emissions, and meets the requirements of green buildings.

5. A wide range of application scenarios to meet diverse needs

Building roof

Used for flat roofs or sloped roofs of industrial factories, commercial buildings, and residential buildings, providing long-term waterproof and thermal insulation solutions. For example, after a large logistics warehouse uses integrated boards, the roof leakage rate is reduced by 90% and energy consumption is reduced by 20%.

Exterior wall insulation

As the core material of the exterior wall insulation system (EIFS), after being combined with the decorative surface layer, the unity of building energy conservation and aesthetics can be achieved.

Cold chain logistics

In cold storage, refrigerated truck and other scenarios, integrated boards can maintain a low temperature environment, reduce cooling capacity losses, and ensure the quality of cargo storage.

Underground Engineering

Used for waterproof and insulation in humid environments such as basements and tunnels to prevent groundwater penetration and freeze-thaw damage to the structure.