What is it? A Vapour Control Layer is an air/vapour- tight membrane that is installed internally to increase airtightness, improve moisture management and energy efficiency. VCL (Vapour Control Layer) Where is it used? The VCL is fixed to the internal side of the Steel Framing System using double-sided tape, and sealed at the edges with UV Façade Tape. Why do we use it? A VCL provides an airtight layer which minimises the amount of warm/moist air that enters the fabric of the building and to protect the structure from degradation due to condensation and vapour build up.
OBEX CORTEX 0230FR
OBEX CORTEX 0530FR
VCL’S
STANDARD
MIN. REQUIREMENT
Harmonised Standard
EN 13984
Compliance
Compliant
Compliant
Fire Classification
EN 13501-1
B-s3,d0 minimum
Class A2-s1,d0
B-s1,d0
Water Penetration
EN 1928
Pass, 2kPa for 24 hours
Pass
Pass
Airtightness
EN 12114
<0.1m³ leakage
<0.1m³
0m³/h/m² (+/- 100 Pa)
Water Vapour Transmission EN 1931
>1500m
2575.35m
100m
Vapour resistance
EN 1931
12,874 MNs/g
500 MNs/g
Tensile Strength
EN 12311-2
> 1000/50mm (MD, CD)
1362 / 1349
160 / 155
Tear Strength
EN 12310-2
> 100 N (MD, CD)
150 / 150 N
142 N
Heat Ageing
EN 1296
Pass
Pass
Pass
Service Temperature
-40°C to >+70°C
Yes
Yes
Ease of Installation
Good
Good
Good
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