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TORCHON RE ROOF
Strip off existing asphalt gravel roof membrane and dispose to tip
Inspect timber substrate and refix any loose or twisted boards.
Lay Ruberoid Britorch 3 underlay, spot bonded with cold bitumen adhesive and mechanically fixed at 200mm staggered centres with 19mm large head Galvanised clout nails.
Prime inside and top of parapet wall, and apply fully bonded Ruberoid Britorch 3 underlay, dressed down onto horizontal 100mm.
Apply 2nd layer, Ruberoid Britorch 4mm Blue/Grey Mineral membrane, fully bonded to the underlay, with joints offset from 1st layer, formed up under glass windows and up and over parapet walls.
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