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  1. G

    rafter screws

    What size screw would be a direct replacement for a 4.5 x 100 wire nail for fixing rafters to purlins, I have bought 5.0 mm screws but the shank size does appear smaller than the nail.
  2. G

    Closing cavity

    Is it necessary to close the cavity at the top of a gable wall ? (double skinned block wall 75mm cavity, 45mm partial cavity fill) I believe it is so on walls finishing with wallplate is this correct,? what is the best method.
  3. G

    Roofing battens

    How to fix slating battens across gable walls? The gable end of my extension is constructed with two leaves of 100mm block and 45mm partial cavity fill (75mm cavity) The roof is a tradional cut roof with the last rafters finishing approx 40mm from gable inner leaf the rafters sit on steel I...
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