Every part of the void under a timber suspended ground floor should be thoroughly ventilated through openings on at least two opposite sides Where this is not possible, effective cross ventilation from opposite sides should be provided by a combination of openings and air ductsTo identify a suspended timber floor, look outside for ventilation grilles just above ground level If there are not any vents outside it may be a solid floor See our fact sheet Radon sumps; One of the things you should see around the outside of a house which has suspended timber floors are subfloor airbricks They are, or should be, fairly regularly spaced and their purpose is to allow air ventilation within the subfloor void This air ventilation is very important, as it helps to keep the area within the void relatively dry
Will Lack Of Ventilation Rot My Timber Floors
