Vapour Barrier and Waterproof Thermal Insulation Aluminium Foil Membrane
This advanced aluminium foil membrane combines three critical functions into a single layer: vapour control, waterproofing, and thermal reflection. Designed for modern building envelopes, it features a durable aluminium face that reflects up to 97% of radiant heat, significantly reducing cooling loads in summer and retaining warmth in winter. The core structure provides a robust barrier against liquid water ingress while allowing the building to manage internal humidity effectively.
Installation is remarkably straightforward, making it a favorite among contractors. The material is lightweight and flexible, conforming easily to complex roof shapes and wall contours without cracking. A key feature is its compatibility with specialized aluminium foil tapes. When seams are sealed with this matching tape, the system creates a truly continuous, airtight, and watertight shell. This seamless connection eliminates weak points where moisture could penetrate, ensuring the waterproof type for roof performs as a unified shield rather than a patchwork of sheets.
The benefits to the building are profound. By keeping insulation dry, the membrane maintains peak thermal efficiency, potentially lowering energy bills by 15-20%. It also prevents structural rot and mold growth, extending the lifespan of timber frames and steel beams. Whether used in residential attics or commercial warehouses, selecting the correct waterproof type for roof ensures long-term durability. The ease of application means projects finish faster with fewer errors, while the superior protection safeguards the asset against weather damage. Ultimately, integrating this waterproof type for roof with proper taping delivers a high-performance, energy-efficient building envelope that stands the test of time.
| Feature | Specification |
| Dimensions | Width: 100/120/130/140/150cm |
| Length: 50/60/70/80/90/100m (per roll) | |
| Material Structure | Base: HDPE/LDPE /RPE Grid Mesh |
| Surface: Aluminum Layer (99% Purity) | |
| Weight: 100g/m² – 200g/m² | |
| Vapor Resistance | Water Vapor Diffusion Equivalent Air Layer (Sd Value): > 100m (Near Infinite) |
| Moisture Transmission: ≤ 0.5 g/m²·24h | |
| Thermal Reflectivity | Radiant Heat Reflection: ≥ 95% |
| Emissivity: ≤ 0.05 | |
| Physical Strength | Tensile Strength: MD ≥ 200 N/5cm, CMD ≥ 180 N/5cm |
| Tear Strength: ≥ 30 N (Trapezoid Method) | |
| Temperature | -40°C to +120°C (Short-term up to 150°C) |
| Chemical Resistance | Acids, Alkali, and Corrosion |
| Safety & Environment | Non-Toxic, Odorless, No Fiber Shedding |
| Mold & Bacteria Resistant |
FAQ
1. On which side should the vapor barrier be installed?
The vapor barrier should be installed on the inner side of the insulation layer (the warm side, i.e., indoors) to block indoor humidity from entering the insulation.
2. What is the service life?
With proper installation and protective outer layer, service life reaches 20–50 years-comparable to the building itself.
3. Does winter installation affect performance?
Material may stiffen at low temperatures. Install above 5°C if possible. If unavoidable, pay attention to adhesive tape bonding performance and preheat when necessary.
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