Gerband sd vario

Airtight VCL Membrane - Variable Sd

Internal vapour control membrane used indoors, creates airtight barrier and protects against interstitial condensation.

Features

Premium Quality
Cost Effective
Technical Support
Installation Guides

Gerband sd vario membrane is a multi-layered vapour barrier with a moisture-variable sd value. It’s used indoors to create an airtight barrier and a vapour control layer for the protection of the construction in accordance with DIN 4108. During the winter it reliably prevents diffusion of interior humidity into the roof and wall construction. As a result, during summer it allows for back fusion from the insulation as well as the wall and roof construction. It also prevents condensation that causes mildew growth and structural damage.

Applications:

Internal vapour control membrane.
All construction types.
Good for new builds and renovation of old buildings.
Especially suited to timber frame and flat roof buildings.

Features & Benefits:

Variable diffusion resistance.
Moisture variable, sd value 0.25-5.0m.
Composite of a functional PA film and PP non-woven.
Outstanding ageing resistance.
UV resistant: at least 18 months behind glass and three months in outdoor exposure*.
Especially useful for new buildings as well as for renovation of old buildings.
The CE sign according to DIN EN 13984 provides the necessary security for the application in constructions to build according to all valid requirements of the EnEV and construction standards.

Colour	White
Location	Internal
Mass Per Unit Area	85g/m²
Material	Airtight Membrane
Roll Area	60 m²
Roll Length	40 m
Roll Weight	5.1 kg
Resistance to Fire	Class E
Roll Width	1500 mm
Size	1.5m x 40m
System	rooftite®
Elongation Longitudinal	≥ 200%
Elongation Transverse	≥ 225 %
Tear Resistance Longitudinal	≥ 25 N
Tear Resistance Transverse	≥ 25 N
Tensile Strength Longitudinal	150 N/50mm
Tensile Strength Transverse	125 N/50 mm
Water Vapour Resistance - Sd Value	0.25 – 5.0m
Water Penetration Resistance	No Penetration /2Kpa
Application Area	Ceiling, Floors, Internal Wall, Loft Space

Application

Application Guide:

Store in dry rooms from 5°C to 25°C, protected from UV-radiation.
The membrane should be applied perpendicular to the direction of the application surface i.e. studs, rafters and joists.
The membrane should be fixed with staples every 150mm or with PHS Double Sided Tape.
Gerband 586 Tape (or equivalent) or a suitable PHS Grommet should be used for penetrations.
For bonding barrier overlaps, penetrations and repair spots, Gerband 586 Tape or a similar tape is recommended.
For connections of concrete or masonry Gerband Fortax 6400 Adhesive Sealant is recommended.
Ensure there is a 100mm overlap of the membranes and tape with Gerband 586 Tape or another suitable tape.