Vapor barrier membrane – a trend of the Ukrainian market! A non-woven two-layer material designed to protect insulation from moisture penetrating from premises in the form of warm air, which causes the formation of dew point. The membrane prevents condensation on the insulation and load-bearing structures, protects structures from mold growth, and thereby extends the service life of the house.
Vapor barrier is used to protect hygroscopic (moisture-absorbing) insulation (mineral wool, expanded clay, ecowool, sawdust). Moisture enters the insulation not only from the outside in the form of precipitation but can also accumulate due to normal human activity – cooking, using a shower, and even normal breathing!
The principle of operation of a vapor barrier membrane is to separate the room from the under-roof space, i.e., to fully insulate the insulation from air entering from inside the room. Relative humidity especially increases in rooms with the onset of cold weather – the lower the temperature, the more moisture begins to condense on colder surfaces. The two-layer structure prevents the insulation from getting wet: the fleecy side absorbs and evaporates moisture, while the vapor- and waterproof layer does not let it through further. The vapor barrier membrane prevents warm, moist air from entering the insulation, eliminating condensation. Roofer™ membranes can be used in frame walls, warm roofs, and insulated floors. The vapor barrier membrane withstands temperatures up to 120⁰C, which allows it to be used for vapor barrier in saunas and baths. The membrane withstands ≥160 ≥110 N/5cm for tear strength along the length / across the width, which makes its installation extremely simple (unlike ordinary film).
