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Is it necessary to install a vapor barrier over SPF (Spray Polyurethane Foam) Insulation?

April 26, 2017barrier foam install insulation necessary polyurethane SPF spray vapor

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Is it necessary to install a vapor barrier over SPF (Spray Polyurethane Foam) Insulation?

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A poly vapour barrier is not necessary to be installed over Polyurethane Foam sprayed by PolarTech however, your Building Standards Professional has the final say in this regard. PolarTech has met with Building Standards regarding this and has received approval for the installation of PolarFoam PF 7300-0 Soya with no poly vapour barrier being required.