Underfloor Ventilation Nhbc

01908 747 255 www nhbc co uk question in relation to external ground levels where should air bricks which provide natural ventilation to under oor voids be positioned.

Underfloor ventilation nhbc.

Nhbc nhbc house davy avenue knowlhill milton keynes bucks mk5 8fp tel. Air bricks to underfloor voids relationship to ground levels. Where underfloor voids adjoin ground bearing floors ventilation ducts should be installed. If necessary pipe ducts should be incorporated in adjoining solid floors separating walls or other obstructions.

Telescopic underfloor vent tough adjustable ventilator for ground floors underfloor through wall ventilation 100 timloc strongly recommend that reference is made to the relevant technical information at the end of this section before the products are specified purchased or installed. They have been designed to meet the requirements of the relevant building regulations scottish building standards and british standards as well as satisfying the. Ventilation of underfloor voids. Nhbc inspection staff have noted and are concerned that the well established best practice of the finished ground level being 150mm below the dpc is being ignored on an increasing number of sites.

Now covered by vpu high level ventilation in standards fixing tiling battens using. Vapour permeable underlays vpus and roof void ventilation withdrawn december 2016. To help you interpret and apply the nhbc standards we produce the following technical guidance documents.