LH films and LH-K film kits must be installed onto a layer of DEP6 insulation/underlay and under VB vapour barrier. Both DEP6 insulation/underlay and VB vapour barrier must cover the entire floor area (not just the heated section). Both DEP6 and VB must be held in place by LHT moisture resistant fixing tape. Allow one LHT high adhesion tape for every 10m2 of floor area.
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