DS1 DUO Vapour Control Layer

DS1 DUO is a 3.5 mm technically advanced self-adhesive elastomeric bitumen vapour barrier with patented “DUO” lap technology. The product features thermally activated bitumen stripes to provide the bonding compound for the insulation boards.

Technical Data
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Roll size	1.08 x 7.5m
Surface finish	Top: Foil & mica Bottom: Release film over self-adhesive bitumen
Weight	4.5Kg/m²
Thickness	4mm
Reinforcement	Polyester coated aluminium foil & 60g/m² glass fleece
Tensile strength (EN 12311-1)	Length ≥ 400N/50mm Diagonal ≥ 400N/50mm
Elongation (EN 12311-1)	Length ≥ 2% Diagonal ≥ 2%
Heat stability (EN 1110)	+70°C
Cold bending (EN 1109)	-25°C