Tag: thermal resistance
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Are you getting what the R-value specified and paid for?
Polyisocynaurate insulation is one of the more commonly used insulation types in the roofing industry. Most manufacturers of polyisocyanurate insulation use the long-term thermal resistance (LTTR) method of determination. LTTR method is defined by ASTM…
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Are you getting what the R-value specified and paid for?
Polyisocynaurate insulation is one of the more commonly used insulation types in the roofing industry. Most manufacturers of polyisocyanurate insulation use the long-term thermal resistance (LTTR) method of determination. LTTR method is defined by ASTM…