Fixing ROOFMATE RL-X

ROOFMATE™ RL-X boards installed over the rafters are secured by the fixings used to secure the counterbattens, which pass through the insulation and into the rafters. The counterbattens, which will normally be 32 or 50mm thick, support the tiling battens.

The counterbattens are secured using specialised fasteners, e.g. Helifix Inskew, Proctor PR nail, Ancon Staifix - Thor Helical Batten fixings. The type and number of fasteners should be calculated using the methods in BS 5534: Part 1 and fasteners manufacturer's data.

The tiling battens can be secured directly to the counterbattens using normal fasteners.

Joints between adjacent boards of ROOFMATE RL-X do not require cross noggins as the tongued and grooved edges of ROOFMATE RL-X are self-supporting. However, the boards must never be stood on or used as a working platform.

The ROOFMATE RL-X boards should be laid with their length parallel to the ridge/eaves with the tongue facing up the roof slope. ROOFMATE RL-X boards cut to size can be installed between the rafters and secured in place by support battens.

In some areas of high humidity, e.g. above bathrooms and kitchens, a vapour control layer may be necessary on the warm side of the ROOFMATE RL-BE-X insulation: check with condensation risk analysis.

Fit ROOFMATE RL-X above the rafters as part of the installation of the roof covering, then fit ROOFMATE RL-BE-X between the rafters.