Part 7 Roofs Chapter 7 - NHBC
Separating walls and hold down the roof against wind uplift RESTRAINT STRAPS Restraint straps, a proprietary loft hatch •ensuring that the hatch is heavy enough (or suitably fixed) not acceptable as an alternative to cross ventilation of the roof space. To reduce the risk of freezing and ... Fetch Document
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Take down and rebuild defective double flue chimney stack in an appropriate brick, cross battening, tilting fillets to provide necessary falls SW bearer 170 x 50 bolted to wall end 1.80 Form loft access hatch 600 x 450, to include all trimming, framing, ... Retrieve Here
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