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4411 Mastic asphalt roofing (9)
Mastic asphalt roofing, including vapour barriers, underlays, board/slab insulation (whether below or
above the waterproof covering), bitumen based screeds and surface finishes of paint, gravel or
chippings. Tiles, paving slabs, stools, concrete wearing slabs, etc., where installed as part of the
roofing work
4414 Hot melt monolithic membrane (3)
Hot applied rubberized bitumen/asphalt composite monolithic membrane
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