MultiTX® Plus is a 3-layer, high vapour resistance air and liquid barrier roofing underlay, specifically designed as a modern, cost effective and lightweight alternative to traditional bituminous based felts.

MultiTX® Plus can be used in conventional ventilated pitched roof construction of both cold and warm roofs. It’s a durable, clean, easy to cut and install and offers excellent temporary protection against the elements. In fact, MultiTX® Plus minimises manual handling issues and offers excellent flexibility even at low temperatures. 

MultiTX® Plus range is Agrement certified by BBA in the UK for use in tiled and slated ventilated pitched roofs, in both supported and unsupported applications; as well as IAB certified in Ireland.

Protects against wind driven rain, snow and dust
Exceptional resistance to water penetration
Stabilised against UV degradation
MultiTX Plus Roll Insert English Download
MultiTX Plus Datasheet Español Download
MultiTX Plus Datasheet English Download
NSAI MultiTX® Plus Certification -Barrier roof tile underlay English Download
BBA MultiTX® Barrier Undelays Certificate English Download
MultiTX Plus Installation Instructions English Download
Roofing Installation Instructions English Download
BBA Information Bulletin no 2 English Download
Construction Introduction English Download
Don & Low Construction Flyer English Download