RADONELAST 3.5 is a glass fibre + aluminum foil reinforced Underlay saturated and coated with high quality SBS (Styrene-Butadiene-Styrene) modified bitumen. The membrane is protected with thermofusible film on its lower side and fine-grained sand on the upper side. Due to composite reinforcement (glass fibre + aluminum foil) these membranes are an ideal solution for foundation waterproofing and recommended to be used as a radon barrier for the indoor premises (basement, cellar and inner block walls and floor). These products can be applied to all suitable types of substrates as underlays in high performance built up waterproofing systems.
- Excellent low temperature flexibility at -15°C
- High puncture resistance
- Designed to perform in harshest weather conditions
- SBS modified bitumen binder formulated to ensure highest performance