Protect A1 T3 Plus is a high performance, heavy-duty type HR roofing underlay designed for all cold and warm pitched roofs, developed to overcome the disadvantages of traditional Type 1F, 5U felts and plastic sheet materials and is used in conjunction with high and low level ventilation.

A new and improved fourth generation of the original A1T3 product, Protect A1 T3 Plus provides a class leading product weight of 190gsm, offering a robust secondary line of defence to the roof, whilst offering customers added value for money.