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SIGnature Air & Vapour Control Layer (Torch On) - Air & Vapour Control Layer (AVCL)
Verified by manufacturer today
BBA Agrément Certificate
Certificate type
High performance Air and Vapour Control Layer as part of the SIGnature Torch On system range.
Application
Suitable for use as part of a SIGnature Torch On system Specification project.
Description
SIGnature Air & Vapour Control Layer (Torch On) is a high performance air vapour control layer for use in the SIGnature Torch On system range.
It comprises an aluminium core, reinforced with polyester and coated with a quick melt SBS modified bitumen. The lower surface has a sacrificial film which rapidly melts during the torching operation.
The air & 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.
- BBA Certificate 86/1640.
General information
Color | Black |
Finish | Mineral |
Material | Polyester |
Shape | Other |
Length | 12000 mm |
Width | 1000 mm |
Height | Bespoke |
Warranty description | Other |
Uniclass | |
CAWS | J41/40 Laying air and vapour control layer J41/395 Air and vapour control layer |
Specification data - Reinforced bitumen roofing sheets
Classification data | |
Third-party certification | BBA Certificate 86/1640. |
Material | |
Carrier material | 170 g/m² Polyester. |
Weight (minimum) | 3.1 kg/m². Guidance for specification option: Roll weight 37.0 kg |
Surface finish | |
Underside | Sacrificial film. |
Colour | Black. |
Size: | 12 x 1 m. |
Water vapour resistance | 2436 m. (Sd value). |
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 |
Material | Polyester |
Product certifications
BBA Agrément Certificate
SIGnature 25 Roof Waterproofing System BBA
Literature
Literature type
SIGnature-Air-Vapour-Control-Layer-Torch-On-CE-DOP-V3-December-2024
SIGnature-Air-Vapour-Control-Layer-Torch-On-UK-CA-DOP-V3-December-2024
SIGnature-Air-Vapour-Control-Layer-Torch-On-PDS-March-2025-V1