The commonest cause for inadequate underneath ground ventilation is there not more than enough vents, or They're also smaller for the size and format of creating. Creating extensions, building area and soil style can all add to problems while in the subfloor. The most common cause for inadequate below flooring http://zionjcgcn.ezblogz.com/13240310/underfloor-vent-things-to-know-before-you-buy