Recent content by josh1000

Thank you both for your replies. We are using PIR - Quinn Therm 150. The self adhesive VCL is quite expensive. If we use that under the insulation, do we still need all 3 layers (venting layer, underlay, mineral cap sheet) above the insulation?

Hi, we are building a large flat roof and the following is what the engineer has specified: For the vapor barrier (point c), there seems to be no such product available that I can find. The engineer is not helping. Could you please suggest a suitable alternative that is effective in both...