Sika Index Vapordiffuser Strip V - Bituminous Membrane
$429.01
Advanced Waterproofing with Sika Index Vapordiffuser Strip V
Vapordiffuser Strip/V is a premium APP modified bituminous roof membrane designed for professional torch-on application. Engineered for extreme durability, it remains flexible at temperatures down to -15 °C and is reinforced with high-strength fiberglass. The underside features a specialized elastomeric heat adhesive compound applied in strips, which activates during torching. This unique design provides approximately 40% surface contact, allowing the remaining 60% (blasted with sand) to facilitate moisture diffusion and distribute mechanical strain across the substrate.
Primary Uses
- Waterproofing for flat and sloped roofs (under ballast or protective layers).
- Moisture protection for balconies and terraces under tiling.
- High-performance first layer for damp or high-moisture surfaces.
Key Characteristics & Advantages
- Wind Resistance: Superior adhesion and stability against wind uplift.
- Dual Function: Acts as both a vapor diffuser and a waterproof membrane.
- Strain Distribution: Effectively absorbs and distributes movement across the laying surface.
- Cold Flexibility: Maintains performance at -15 °C.
- Mechanical Strength: High tensile, tear, and shear resistance.
- Easy Installation: Optimized for standard torching methods.
Specifications: Weight: 2.0 kg/m2. Compatible with concrete substrates and existing bitumen roofing.
Downloads: Download Technical Data Sheet (PDS)
Source: Sika Corporate Product Documentation