Sohi Synthetic Roofing Underlayment

Usage

Waterproof breathable membrane is a key building material designed to block external water, rain, snow and moisture while allowing water vapor inside the building to escape, preventing condensation, mold and structural damage.

Core Applications & Scenarios

• Roofing systems: Installed under asphalt shingles, tiles, metal roofs and slate, covering eaves, valleys, ridges, low‑slope areas and roof penetrations (chimneys, vents, skylights) to resist ice dams and wind‑driven rain.
• Wall systems: Applied on exterior walls, behind siding, brickwork or insulation, protecting against rain penetration and improving thermal insulation.
• Residential & commercial buildings: Widely used in houses, apartments, warehouses, offices and public buildings.
• Renovation projects: Ideal for re‑roofing and wall retrofits, enhancing waterproofing and breathability without major structural changes.

Advantages

1、Certified by CE, BBA and NATA.

2、≥2000mm hydrostatic pressure

3、≥1,700 g/m²·24h vapor transmission

4、UV-stable (3 months).Customizable anti-aging performance up to 6 months.

5、-40℃~+110℃ resistance

6、Excellent tensile strength and tear resistance