SIGA Majvest® 500 SA is an external, wall membrane designed for behind sealed facades. This self-adhesive membrane is diffusion open, ensuring air and moisture can move through the wall, and comes with a printed laying guide for easy installation. Enjoy the convenience of self-adhesion and the peace of mind that comes with a reliable SIGA product.

High adhesive strength at high and low temperatures
Sticks in all seasons, long-term building value

Printed laying and measuring grid
Fast and easy application

Tear-resistant split-release liner
Easy to remove, faster to apply

Width: 1.52 m (1520mm)
Length: 30.48 m
Coverage: 46.33m²
Composition: Microporous membrane reinforced with non-woven PP layer
Weather resistance: Driving rain-proof, waterproof: W1 (according to EN 1928)
Weight: 11kg
Weight per unit area: 260 g/m²
sd-value: 0.5 m
Resistance to tearing (Nail Tearing) (MD): 180 N
Outdoor exposure: 4 weeks
Fire Behaviour Class: B, s1, d0* according to EN 13501-1 *when tested on a class A2 substrate or better