Vanilla 1.0.3 is a product of Lussumo. More Information: Documentation, Community Support.
1 to 20 of 20
Posted By: TimberAlso the mis-conception that SIPs don't need VCLs and that they can have metal roofing systems placed directly over them.
Posted By: TimberAs for metal roofing -
Posted By: Timberas some manufacturers don't seal the panel joints (although they should)
Posted By: borpinI do worry that any VCL risks trapping moisture behind it and actually making the situation worse.
Posted By: TimberBorpin - the foil faced insulation board will themselves act as a vapour control layer only letting moisture vapour through the gaps. If the gaps are sealed, you will have a fairly effective VCL anyway (certainly more than 5x the resistance of the OSB and EPS core (if using EPS)).
Posted By: Viking HouseBuild it airtight, insist on an airtightness test and there's no need for a vcl or ventilated metal roof on SIPs.Condensation issues result from leaks and not diffusion.
© Green Building Press