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Geotec lead underlay is made from a non-woven polyester material and isolates lead sheeting from the roofing material it lays over. This prevents damage and fractures from occurring where the lead cladding lays on timber boards as it allows the lead to expand and contract freely.
The underlay reduces drag arising from thermal movement; assist against condensation and chemical attach; protect against uneven surfaces.
Size: 25m x 1m