EW1117 TLX BatSafe Breather Membrane


This is an assessment of TLX BatSafe, a breathable lightweight roofing underlay for use on tiled and slated pitched roofs. With a tested vapour resistance of 0.095 MNs/g it is classed as an LR type underlay by reference to BS 5250:2011.


When installed in accordance with the manufacturer’s guidance and relevant provisions in BS 5250: 2012, TLX BatSafe is satisfactory for use anywhere in the UK (zones 1 – 5) as an underlay in dwellings with tiled or slated roofs of any conventional plan and size.

This certificate does not cover environmental benefits or fire rating.

Valid until 3rd May 2023


Please Note: Every care was taken to ensure the information was correct at the time of publication. Any written guidance provided does not replace the user’s professional judgement. It is the responsibility of the dutyholder or person carrying out the work to ensure compliance with relevant Building Regulations or applicable technical standards.


Web Dynamics Ltd
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01204 695 666