Ventilation of underfloor voids.
Underfloor ventilation nhbc.
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Sleeper walls and partitions should be constructed with sufficient openings to ensure adequate through ventilation.
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.
Where underfloor voids adjoin ground bearing floors ventilation ducts should be installed.
Air bricks to underfloor voids relationship to ground levels.
To help you interpret and apply the nhbc standards we produce the following technical guidance documents.
Now covered by vpu high level ventilation in standards fixing tiling battens using.
If necessary pipe ducts should be incorporated in adjoining solid floors separating walls or other obstructions.
Vapour permeable underlays vpus and roof void ventilation withdrawn december 2016.
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They have been designed to meet the requirements of the relevant building regulations scottish building standards and british standards as well as satisfying the.