Powerlon UltraPerm Standard Underlay 115gsm 1.5m x 50m (75m2)

Powerlon UltraPerm Standard Underlay 115gsm 1.5m x 50m (75m2)

The Powerlon UltraPerm Standard Underlay 115gsm 1.5m x 50m (75m2) is a range of high-performance underlays that are breathable and usable for all pitched roof designs and wall applications. This roofing felt is tear resistant, durable and tough and has excellent water vapour permeability and water repellent characteristics.

With each purchase of a roll, you will receive detailed instructions and a colour-coded map to help with geographical suitability per wind zone and membrane grade. The Powerlon UltraPerm Standard Underlay 115gsm 1.5m x 50m (75m2) is a non-woven composite high-performance underlay, with a choice of five different grades.

This product is also flame retardant to Class E, with customised printing available. It has been tested to the latest BS 5534:2014+A1:2015 standards to ensure the best version for you. The powerlon Ultraperm has preprinted marking lines for both roof pitch and overlaps for either supported or unsupported roofs to make installation faster and simpler.

Features & Benefits:

• Non-woven composite high performance underlay
• Tough, durable and tear resistant
• BBA certified for roofs and walls
• CE Marking
• Tested to the latest BS 5534:2014+A1:2015 standards
• Exceptional water vapour permeability
• Water repellent with good UV stability 
• Choice of five grades
• Customised printing available 
• Flame retardant to Class E

Product Specification:

• Weight: 115gsm
• Colour: Grey
• Standard Sizes: 1.0 x 50m, 1.5 x 50m