SIG SIGnature Bituminous Self-Adhesive Air & Vapour Control Layer
Verified by manufacturer 5 months ago
High performance vapour control layer with two application options.
Application
Suitable for use in the SIGnature BUR systems.
Description
SIGnature Self-Adhesive VCL is a high performance vapour control layer for use in the SIGnature BUR systems as a cold applied option. It is composed of a polyester reinforced aluminium core, coated with a rubber modified, self-adhesive bitumen coating. The membrane is protected on the underside with a release film backing and coated on the top surface with a fine mineral finish. A minimum selfedge of 75 mm width, protected with release film, provides a quick means of completing side laps.
The vapour control layer is bonded to the top of the structural deck prior to the bonding of the insulation layer in warm flat roof construction.
Features and benefits:
- Aluminium core.
- High tensile polyester base.
- High resistance to damage and delamination.
- SBS bitumen coating low temperature flexibility -20°C.
- Prevents penetration of water vapour and damage to roof construction.
- Cold or warm roof applied options.
- CE marked.
General information
Color | Black |
Finish | Mineral |
Material | Polyester |
Shape | Other |
Length | 15000 mm |
Width | 1000 mm |
Uniclass | |
CAWS | J41/10 Reinforced bitumen membrane warm deck roof covering J41/395 Air and vapour control layer |
Specification data - Reinforced bitumen roofing sheets
Standard | To BS 8747. |
Material | |
Carrier material | 170 g/m² Polyester. |
Weight (minimum) | 2.5 kg/m².Guidance for specification option: Roll weight 37.5 kg |
Surface finish | |
Top | Fine mineral finish. |
Underside | Release film backing. |
Colour | Black. |
Third-party certification | BBA Certificate 86/1640. |
Size: | 15 x 1 m. |
Water vapour resistance | Sd value: 2436 m. |
Watertightness | 50 kPa. |
TensileStrength | Longitudinal ≥650. Transverse ≥500. |
Elongation | Longitudinal ≥30. Transverse ≥35. |
Tear resistance | Longitudinal ≥250. Transverse ≥300. |
Flexibility at low temperature | Upper and lower: ≤-10°C. |
Sustainability data
Country of product manufacture | United Kingdom |