Roofing Membranes

Daltex® Roofing Membranes

The McArthur Group has a long-standing reputation for distributing only the best in roofing membranes & is proud to partner with & supply Daltex® roofing membranes UK-wide. The McArthur Group supplies the full range of Daltex® products namely: RoofTX®, FrameTX®, MultiTX® & breathable roofing membranes.

These roofing membranes facilitate a wide range of applications including ventilated & non-ventilated cold & warm pitched roof systems for tiles & slates. In mainland UK & Northern Ireland roofing membranes should be installed in accordance with British Board of Agreement Certificate No. 07/4442.

Daltex® RoofTX Roofing Membranes (Optima, Maxi & Ultra)

Daltex® RoofTX® Optima is a 3-layer low resistance vapour permeable air barrier roofing membrane ideal for pitched roof construction. Daltex® RoofTX® Optima is suitable for fully supported or unsupported applications and can be utilized in conventional ventilated roof constructions.

Daltex® RoofTX® Maxi is a low resistance vapour permeable air barrier roofing membrane, specifically designed to allow the ready transfer of moisture through the underlay, thereby reducing the risk of condensation in a roof’s structure.

Daltex® RoofTX® Ultra is suitable for fully supported or unsupported applications and can be utilized in conventional ventilated roof constructions. Daltex® RoofTX® Ultra roofing membrane is also certified for use in walling.

Daltex® FrameTX Roofing Membranes

Daltex® FrameTX® is a single layer, air permeable high performance breather roofing membrane. Daltex® FrameTX® is used in timber & steel frame constructions. It is specifically designed to allow easy-transfer of moisture & air through the roofing membrane reducing the risk of condensation in the wall structure.

Daltex® MultiTX Roofing Membranes

Daltex® MultiTX® is a 2-layer synthetic alternative to traditional roofing felt.  Daltex® MultiTX® roofing membranes offer high-vapour resistance (air & liquid barrier roofing underlay) & have been specifically designed as a modern alternative to bituminous based roofing felts (BS 747, 1F). Daltex® MultiTX® is suitable for: Fully supported or unsupported roofing applications, and is used in conventional ventilated pitched roof construction.

Installation Instruction

Dalpro® roofing membranes should be fixed to the rafters or boarded sarking with the coloured side uppermost. Tile battens (where appropriate counter battens) should be fixed over the membrane ensuring that there is sufficient drape to allow moisture and air movement. There should be more than 6mm or less than 25mm if the roofing membrane is required to be draped. Dalpro® roofing membranes are unrolled horizontally across the roof starting at the eaves. Subsequent rows of membrane should be lapped over the underlying row to shed water out and down the slope. Sufficient vertical overlap should also be allowed.

Our roofing membranes forms part of our roofing supplies portfolio.

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