A temporary cover for protecting roofs prior to the installation of tiles or slates, this Danelaw LR120TT roof underlay is a durable and UV-resistant product that includes integral tapes for sealing overlaps and enhancing weatherproofing. These integral tapes effectively seal ... Read More
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A temporary cover for protecting roofs prior to the installation of tiles or slates, this Danelaw LR120TT roof underlay is a durable and UV-resistant product that includes integral tapes for sealing overlaps and enhancing weatherproofing. These integral tapes effectively seal horizontal overlaps, which is especially advantageous in settings that are humid or dusty.
Approved by the BBA for warm and cold roofs, it has a three-month advised maximum exposure period, although you should aim to install the tiles or slates as soon as possible. Danelaw LR120TT can be employed in a roof structure without ventilation when a vapour control layer (VCL) is present, and the ceiling is well-sealed.
According to BS 5250 Annex H, the Danelaw LR120TT underlay is an LR-type underlay, characterised by high quality and low resistance. It can be installed in unsupported applications by draping it over rafters or in supported applications over timber sarking or rigid insulation. Independently tested by the BRE, it is compatible with a batten gauge of 250mm or 345mm unsupported in all wind uplift zones.
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