Stop Moisture and Cold from Below the Floor
Ground floors have high moisture. Moisture can make wood floors rot. It also makes insulation less effective. Our underfloor vapour barrier solves both problems at once. It blocks water vapor. It also blocks cold. The floor above stays dry and warm. We started making XPS in 2003. We have 23 years of experience. We are the first XPS factory in southern Zhejiang. Our factory is 15,000 square meters. Monthly output is 50,000 cubic meters. We have ISO 9001 and ISO 14001 certificates. Our underfloor vapour barrier meets international standards.
Clear and Reliable Parameters
This board has very low water vapor permeability. Moisture has a hard time passing through. See the numbers:
|
Parameter |
Value |
|
Board Size |
1800×600 mm |
|
Thickness |
10–50 mm (20 mm is common for moisture) |
|
Compressive Strength |
200 kPa |
|
Thermal Conductivity |
≤0.034 W/(m·k) |
|
Water Absorption |
≤1.5% |
|
Water Vapor Permeability |
≤3.5 Ng/(m·s·Pa) |
Many ground-floor homes have used our underfloor vapour barrier. After installation, floors no longer feel damp. Winter floors are not as cold. The effect is clear. Customers come back.
Easy to Lay and Free Sample Available
You lay the board directly under the floor. First, lay a moisture film. Then lay our board. Butt the joints tightly. Then lay the final floor on top. The whole job is fast. One room takes half a day. We provide free sample blocks for regular models. You only pay the shipping cost. Test the sample first. Then place your order. Large orders get discounts. One-year warranty. Choose our underfloor vapour barrier for a dry and comfortable floor.
In addition, we can laminate a reflective foil layer onto the board. This adds an extra vapor barrier and also reflects radiant heat. This is especially useful for floors above crawl spaces or unheated basements. The reflective foil also makes installation easier because you do not need to lay a separate vapor barrier film. One product does two jobs. We have this option in stock for 10 mm and 20 mm boards. Choose our underfloor vapour barrier with foil for a complete moisture and heat solution.
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