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£66.35 Inc VAT
Delivery from £48 - Calculated during checkout based on your address and quantity.Also available for Free Click & Collect from York, YO61*
£66.35 Inc VAT
Delivery from £48 - Calculated during checkout based on your address and quantity.Also available for Free Click & Collect from York, YO61*
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Powerlon UltraPerm Premium Breather Membrane Roof Felt is a high-performance, vapour-permeable roofing underlay suitable for a wide range of pitched roof and timber frame wall applications.
Manufactured from a non-woven composite membrane, UltraPerm Premium combines exceptional water vapour transmission with hydrophobic, water-repellent characteristics and good UV stability. This allows moisture vapour to escape from the roof or wall construction while helping protect the building envelope against external moisture.
Powerlon UltraPerm Premium can be used on warm and cold roofs, supported and unsupported applications, and ventilated or unventilated roof constructions, providing a versatile breather membrane for new-build and refurbishment projects.
The membrane is BBA certified for roofs and walls, CE marked and tested to BS 5534:2014+A1:2015. Supplied in a 1.5m x 50m roll, each roll provides up to 75m² of coverage.
Powerlon UltraPerm Premium is designed for use as a breathable roofing underlay and timber frame wall membrane.
Suitable applications include:
Its versatile construction allows the same membrane to be used across a broad range of roofing and wall applications.
Powerlon UltraPerm Premium provides exceptional water vapour permeability, allowing moisture vapour from within the building construction to pass through the membrane.
Effective vapour transmission is particularly important within insulated roof and timber frame constructions, where trapped moisture can contribute to condensation and affect the performance of insulation and other building components.
The breathable membrane allows moisture vapour to escape while its hydrophobic characteristics help resist external water.
Powerlon UltraPerm Premium is suitable for a wide range of pitched roof constructions, including:
This versatility makes UltraPerm Premium suitable for roofing contractors, developers and builders working across different roof designs and specifications.
Powerlon UltraPerm Premium is manufactured from a tough non-woven composite material designed to withstand the handling and installation demands associated with professional roofing applications.
Its durable and tear-resistant construction helps maintain membrane integrity during installation across rafters, insulation and other suitable supporting structures.
At 135gsm, UltraPerm Premium provides a strong yet manageable roofing membrane for covering large roof and wall areas.
The membrane combines high vapour permeability with hydrophobic, water-repellent characteristics.
This helps provide protection against external moisture while still allowing water vapour from within the building construction to escape.
Powerlon UltraPerm Premium also provides good UV stability, helping protect the membrane during normal construction and installation periods before the permanent roof or wall covering is completed.
Powerlon UltraPerm Premium is BBA certified for roof and wall applications, providing independent certification for its use within suitable building constructions.
The membrane is also CE marked and has been tested to BS 5534:2014+A1:2015, the British Standard relating to slating and tiling for pitched roofs and vertical cladding.
These certifications make UltraPerm Premium suitable for professionally specified new-build, renovation and refurbishment projects.
Powerlon UltraPerm Premium has a Class E reaction to fire classification, adding to its performance characteristics as a professional roofing and wall membrane.
Combined with its vapour permeability, water-repellent properties, durability and versatility, this makes UltraPerm Premium a practical underlay for a broad range of building envelope applications.
| Specification | Details |
|---|---|
| Product | Powerlon UltraPerm Premium |
| Product Type | Breather Membrane / Roofing Underlay |
| Roll Width | 1.5m |
| Roll Length | 50m |
| Roll Coverage | 75m² |
| Weight | 135gsm |
| Colour | Blue |
| Material | Non-Woven Composite Membrane |
| Vapour Permeability | Vapour Permeable |
| Water Resistance | Hydrophobic / Water Repellent |
| UV Stability | Good |
| Reaction to Fire | Class E |
| BBA Certified | Yes, for Roofs and Walls |
| CE Marked | Yes |
| BS 5534 Tested | BS 5534:2014+A1:2015 |
| Roof Types | Warm and Cold Roofs |
| Installation | Supported or Unsupported |
| Ventilation | Ventilated or Unventilated Roofs |
| Wall Application | Timber Frame Structures |
Powerlon UltraPerm Premium Breather Membrane Roof Felt provides a versatile solution for pitched roofing and timber frame projects requiring a breathable, water-repellent and durable membrane.
Its 135gsm non-woven composite construction combines exceptional water vapour permeability with hydrophobic properties, good UV stability and tear resistance. It can be used across warm and cold roofs, supported and unsupported applications, and ventilated or unventilated roof designs.
With BBA certification for roofs and walls, CE marking, BS 5534 testing and Class E performance, Powerlon UltraPerm Premium provides a high-performance roofing underlay for professional new-build and refurbishment applications.
Each 1.5m x 50m roll provides up to 75m² of coverage, offering a practical membrane solution for a wide range of roof and timber frame wall installations.
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Rated as Excellent
Our customer service is rated as excellent on Trustpilot where we have over 1500 genuine customer reviews.
