Membranes & barriers
Description
A reinforced version of the Rewasi Top UV Plus range, this underlay pairs two water-repellent polypropylene non-wovens, a Linopore UV Plus functional membrane and a reinforcing scrim. It is the scrim that defines its use: it brings the tear resistance required for the safety of installers on wide centres. Two weights cover this need, the 150 G for rafter centres of up to 90 cm, the 220 G SK for centres of up to 120 cm or tile gauges above 40 cm under DIN 4426. Permeable to vapour, the underlay protects insulation and structural timber against wind, rain, powder snow and dust, and allows temporary weatherproofing for up to eight weeks. It complies with NF EN 13859-1 and 13859-2, annex A of the DTU 40.29 series, ZVDH classification UDB-A/USB-A. Ten-year warranty.