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SIG SIGnature Bituminous Self-Adhesive Air & Vapour Control Layer

Verified by manufacturer 4 months ago

AccuRoof

High performance vapour control layer with two application options.

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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

Pr_25_57_08_75 Reinforced bitumen roofing sheetsPrimary

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