AIRSTOP DIVA+ Vapour Retarder fabric- reinforced

A moisture-variable vapour retarder for use in the air-tight layer. The functional membrane changes its diffusion resistance depending on the current humidity. During the winter months room atmosphere is generally dryer. The sd-value of the vapour retarder increases. This process results in the penetration of only a little water vapour into the construction and/or into the insulation. In summer, when there is sufficient solar insolation, the relative humidity behind the membrane is higher as a result of reverse diffusion. The water molecules are stored in the membrane. The sd-value sinks, causing more water vapour to escape from the construction and into the rooms and the building element becomes dryer.

Material Composition	Non-woven composite made from polymers with filament reinforcement
Colour	Transparent white with blue print
Weight	110 g/m²
Weight per unit area	(± 5 %)
Weight per unit area	EN 1849-2
sd-value	0.5 m
sd-value	30 m
sd-value - Standard	EN ISO 12572
Temperature resistance	-40 °C
Temperature resistance	80 °C
Elongation - lengthwise	20%
Elongation - crosswise	20%
Elongation	EN 12311-2
Tensile strength - lengthwise	350 (± 20) N / 50 mm
Tensile strength - crosswise	315 (± 20) N / 50 mm
Tensile strength	EN 12311-2
Tear propagation resistance - lengthwise	350 N (-25 / +35)
Tear propagation resistance - crosswise	375 N (-25 / +35)
Tear propagation resistance	EN 12310-1
Storage	cool and dry

 

• flat roofs
• construction components with permeable and impermeable outer shell in new constructions and refurbishment
• for wall, ceiling and roof
• transparent
• moisture-variable with a very high sd-value range
• printed cutting line
• tear resistant

• Product Data Sheet
• Declaration of Performance
• Flyer