Proteus Pro-Felt Self-Adhesive Underlay Sanded - Reinforced Bitumen Membrane
Verified by manufacturer 3 months ago
Self-adhesive reinforced elastometric bitumen membrane to be used as an underlay to Proteus capsheets or as the vapour barrier to the Proteus built-up roof system range (timber or concrete decks).
Application
To be used as a vapour check or under-layer in conjunction with Proteus Pro-Therm Insulation, Proteus Pro-Felt® built-up roof systems and Proteus Pro-Felt® capsheets.
To be installed cold with the overlap heated by either a flame torch or hot air gun depending on the site conditions and substrate type. When used as an underlay, Proteus Pro-Felt® Self-Adhesive Underlay Sanded is also heat activated when the torch applied capsheet is installed.
All lap joints must be completely sealed, with a continuous 5 mm bitumen bead extruding from all laps. Side laps to be a minimum of 80 mm. End laps a minimum of 100 mm.
Description
Self-adhesive reinforced polyester elastometric bitumen membrane to be used as an underlay to Proteus capsheets or as the vapour barrier to the Proteus built-up roof system range when installing on to timber or concrete decks.
The upper surface is finished with silica sand and the underside is a protective removable film. A bond is achieved by removing the protective release film to the underside of the membrane adhering it onto a suitable deck or insulation board preprimed with Pro-Prime® SA.
Features and benefits:
- Flame free, self-adhesive application.
- Low temperature flexibility at -15°C.
- 2.55 kg/m² with high tensile strength.
- SBS modified bitumen.
Proteus Pro-Felt® SA Underlay Sanded should be installed in accordance with manufacturer recommendations and all relevant national standards and codes of practice, including BS 8217: 2005 – the code of practice for reinforced bitumen membranes for roofing.
General information
Color | Grey |
Finish | Manufacturer guidanceSanded. |
Material | Bitumen Felt Polyester |
Length | 16000 mm |
Width | 1000 mm |
Height | 2 mm Guidance for specification option: Thickness. |
Warranty description | 25 year |
Uniclass | |
CAWS | J41/395 Air and vapour control layer J41/130 Built-up reinforced bitumen membrane cold deck roof covering J41/10 Reinforced bitumen membrane warm deck roof covering J41/14 Reinforced bitumen membrane inverted roof covering J41/110 Built-up reinforced bitumen membrane warm deck roof covering J41/12 Reinforced bitumen membrane cold deck roof covering J41/400 Built-up reinforced bitumen waterproof covering J41/120 Built-up reinforced bitumen membrane inverted roof covering |
Specification data - Reinforced bitumen roofing sheets
Standard | To BS EN 13707. |
Performance characteristics | Manufacturer's standard.Manufacturer guidanceSee below for other properties, or see manufacturer's literature. |
Material | |
Carrier material | Reinforced polyester. |
Bitumen modification | Elastomeric. |
Thickness (minimum) | 2 mm.Guidance for specification option: To EN 1849-1. Tolerance: MDV -0.2 mm. |
Weight (minimum) | 2.55 kg/m². |
Surface finish | |
Top | Sanded (silica sand). |
Underside | Protective sacrificial film.Guidance for specification option: Removable. |
Colour | Manufacturer's standard. |
Length | To EN 1848-1, 16 m. |
Width | To EN 1848-1, 1.0 m. |
Water tightness (to EN 1928) | To EN 1928-B at 60 kPa, Pass. |
Reaction to fire | To EN 13501-1, Class F. |
TensileStrength | To EN 12311-1, 600 / 400 N/50mm. |
Elongation | To EN 12311-1, 35%/ 35% . Guidance for specification option: Lateral/ transverse. Tolerance: MDV -15. |
Resistance to tearing | To EN 12310-1, 130 / 130 N. |
Dimensional stability | To EN 1107-1, -0.3%. |
Resistance to impact | To EN 12691, 700 mm. |
Sustainability data
Contains Red List materials | No |
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