Two-layer active vapour control. Made of polypropylene nonwoven and functional flm which controls the transfer of vapour towards the attic or towards the inside of the building. Unlike in case of vapour-insulation foils, active properties of the membrane which consist in variable Sd value allow to prevent condensation. Membrane is available with two self-adhesive tapes.
Active vapour barrier is especially recommended for rooms with increased humidity, it has the ability to store excess moisture and release it over time
