Permavent NB145 Impermeable HR Roofing Underlay - Waterproof HR Roof Covering
Verified by manufacturer 3 days ago
1.5 x 30 m (Untaped)
1.5 x 30 m (Untaped)
High performance impermeable roofing membrane.
Application
Suitable for use in impermeable roofing applications.
Description
Permavent NB145 is a fifth generation air and water tight roofing underlay for use in unsupported and supported pitched roofing applications.
Five-ply structure comprising non-woven and polypropylene coating ensures a low slip surface, reduced glare and improved UV and heat resistance compared to older fourth generation products.
Features and benefits:
- Highly durable.
- Anti-glare top surface.
- Excellent tensile strength.
- Excellent tear resistance.
- UV and heat resistant.
General information
Color | Grey |
Finish | Matt |
Material | Polypropylene Guidance for specification option: Non-woven. |
Shape | Rectangle |
Length | 30000 mm 45000 mm |
Width | 1000 mm 1500 mm |
Warranty description | 15 year |
Uniclass | |
CAWS | H62/235 Vapour-permeable underlay H64/307 Vapour-permeable underlay H67/290 Vapour-permeable underlay H31/280 Breather membrane P10/320 Breather membrane H61/22 Vapour-permeable underlay H65/22 Vapour-permeable underlay H64/22 Vapour-permeable underlay H67/24 Vapour-permeable underlay H65/235 Vapour-permeable underlay H61/235 Vapour-permeable underlay H60/235 Vapour-permeable underlay H31/55 Breather membrane H91/305 Vapour-permeable underlay P10/65 Breather membrane H60/22 Vapour-permeable underlay |
SKU Code | NB145 |
Specification data - Polymeric membranes
Description | High performance impermeable roofing membrane. |
Manufacturer | Permavent Ltd. |
Material | Polypropylene, non-woven. |
Standard | To BS EN 13859-1. |
Performance characteristics | |
Reaction to fire | To BS EN 13501-1, Class E. |
Watertightness | Water vapour resistance (Sd) to EN 13859-1: >20. |
Tensile properties | To BS EN 12311-1 (MD/ CD), 197/ 140 N/50mm. |
Tear resistance | To BS EN 13859-1 (MD/ CD), 130/ 140 N. |
Environmental performance requirements | |
Recycled contentAs defined in clause 7.8 of BS EN ISO 14021 | 100%. |
Width (minimum) | 1.5 m. |
Colour | Grey. |
Roll size | 1.5 x 30 m. |
CoverageArea | 45 m². |
Sustainability data
Contains Red List materials | No |
Country of material origin | United Kingdom |
Country of product manufacture | United Kingdom |
Material | Polypropylene Guidance for specification option: Non-woven. |
Recyclability | Fully recyclable. |
Recycled contentAs defined in clause 7.8 of BS EN ISO 14021 | 100 % |
Expected Life | Lifetime |
Literature
NB145-1
NB145-1x45-taped