Rocksourdine acoustic vapour control layer roll

Description

Rocksourdine is a vapour control layer roll made up of a 235 g/m² woven black glass tissue and 40 micron aluminium. It has a dual function: to provide the vapour barrier of the flat roof build-up and to improve the sound absorption of the building when installed on perforated profiled steel decking. In this configuration it is intended for buildings with low and medium humidity and complies with DTU 43.3. Rocksourdine can also be laid on solid steel decking above rooms with high humidity, or where the contract documents require an air tightness Q4 of less than or equal to 1.4 m³/h/m². Five product codes are available, all in 50 m rolls 3 mm thick, in widths from 400 to 1200 mm.