This preformed void forming sheet system, installed in one operation to either cover the whole building footprint as a blanket or laid in strip form at design determined centres.

Installed with the geo-textile filter membrane on the underside creating a 26 mm clear void space for the dilution and dispersal of gases. With an intrinsic permeability of at least 1.2x10.5 high pressure resistance being created by the studded pattern. The geo-textile layer allows gas to filter into the void but prevents clogging.

Benefits

• Fully compatable with Aldervent Systems
• Can be applied to any construction design scenario