NY roof insulation

A friend has a commercial building in Scotia, NY with a full vaulted ceiling, built in the 70’s. The roof deck is 3×6 T&G Cedar planks with maybe 2” of… A friend has a commercial building in Scotia, NY with a full vaulted ceiling, built in the 70’s. The roof deck is 3×6 T&G Cedar planks with maybe 2” of…Read MoreGreenBuildingAdvisor