I have recently insulated under the timber floor (has a void about
18")., with slab polystyrene. (was free, and the sort used in flat roof insulation). The stuff was cut to fit the joists and is pressed down onto tanalised battens. Battens are roof lathes and the polystyrene is 50mm. Extra to this is cooking foil pasted onto the surface This cost less than =A32 for the whole room. . An attempt to duplicate aka Kingspan. No vapour barrier other than the foil and not over the joists.On top is new chipboard flooring. My question to you luvverly people is...IS THIS SAFE. Have I got to undo.- posted
17 years ago