Steam-permeable film MSL 98 is used in steep roof constructions. MSL 98 protects the construction of the roof from leaking as well as the thermal insulation from damping from the outside. MSL 98 also protects the  warmth from being blown out of the insulation layer of the roof. Steam-permeable film MLS 98 is a double-layer product of a good resistance against tearing, thanks to one of the layers to be a strong polypropylene fabric.

Film MSL is the European standard EN 13859-1:2005 and is marked CE.

PARAMETER	MSL 98
Surface mass	98 g/m2
Tearing sustainability lengthwise crosswise	min. 650 N/50mm min. 550 N/50mm
Prolongation with rupture lengthwise crosswise	≥15% ≥12%
Crosswise prolongation before artificial ageing after artificial ageing	12% ± 3% 12% ± 3%
Tearing resistance f2,5mm lengthwise crosswise	≥40 N ≥40 N
Sd – equivalent air layer	≤ 1m
Technical approval	AT/2002-11-0245
Reel size	1,5 x 50 m