Total Torch Vapour Control Layer
Verified by manufacturer 12 days ago
Vapour control layer.
Application
- Suitable for use on both new and refurbishment projects.
- Suitable for use as a vapour control layer in bituminous, single-ply or liquid roof waterproofing systems (warm roof).
- The membrane is used beneath insulation and safely controls the passage of internal water vapour through the roof structure.
- The membrane is compatible with most building materials with which they are likely to come into contact with during roofing works.
- The timber used in the construction of the roof deck must not be treated with solvent-based preservatives.
- Hydrocarbon solvent-based products, such as Naphtha, paraffin and creosote will have a harmful effect and should not be allowed to come into contact with these membranes.
Description
A SBS modified bituminous membrane reinforced with an extra strong glass fibre fleece with a PET film. The upper surface is finished with specially formulated low melt bitumen stripes with a silica sand coating between and has a selvedge of 75 mm and is then finished with a thermofusible film. The lower surface is finished with a thermofusible film to prevent sticking in the roll.
Features and benefits:
- Impervious to water.
- CE marked (EN 13970, 13, 0086).
- Unaffected by freeze/ thaw cycling. It will support temperatures from -20 to +90 °C without damage.
- Correctly installed the product will have a life at least as long as that of the overlying roof waterproofing system.
- Since the membrane adheres, it can provide a weatherproof temporary finish to the roof structure prior to the application of the final waterproofing system.
General information
Material | Bitumen Guidance for specification option: Styrene butadiene styrene (SBS) modified. Polyethylene Guidance for specification option: Thermofusible polyethene (PE) film. Glass Fibre |
Shape | Other |
Length | 8000 mm |
Width | 1000 mm |
Height | 3.4 mm |
Uniclass | |
CAWS | J31/330 Air and vapour control layer J41/110 Built-up reinforced bitumen membrane warm deck roof covering J41/115 Single-layer reinforced bitumen membrane warm deck roof covering J41/395 Air and vapour control layer J42/110 Warm deck roof covering J42/395 Air and vapour control layer |
Specification data - Reinforced bitumen roofing sheets
Classification data | |
Standard | To BS EN 13970. |
Material | |
Carrier material | Glass fibre. |
Bitumen modification | Elastomeric. |
Thickness (minimum) | 3.4 mm. |
Weight (minimum) | 32 kg. |
Surface finish | |
Top | Silica sand with SBS bitumen stripes finished with thermofusible polyethene (PE) film. |
Underside | Thermofusible polyethene (PE) film. |
Reinforcement | Glass/ Polyethylene terephthalate (PET). |
Mass per unit area | To EN 1849-1, 3.93 kg/m². |
TensileStrength | To EN 12311-2 (A), 700 N/50 mm (MD); 450 N/50 mm (TD). |
Elongation | To EN 12311-1 (A), 3.5% (MD); 3.8% (TD). |
Moisture vapour resistance | >3000 MN·s·g-1. |
Thickness | Sd = >14 m. Manufacturer guidanceEquivalent air thickness. |
Density | To EN 1931, >3.16 x 10-8 kg/(m²·s). Manufacturer guidanceDensity of moisture flow rate. |
Moisture resistance | To EN 1931, >6094 μ. Manufacturer guidanceMoisture resistance factor. |
Reaction to fire class | To EN 13501-1, class F. |
Ageing | To EN 1296/ EN 1931, pass. Manufacturer guidanceArtificial ageing behaviour. |
Dimensional stability | To EN 1107-1, ≤ 0.5%. |
Resistance | To EN 1109, ≤-15°C. Manufacturer guidanceResistance to cold bend. |
FlowResistanceRange | To EN 1110, ≥90°C. Manufacturer guidanceFlow resistance at elevated temperature. |
Watertightness | To EN 1928 (B), pass. |