Abstract
This month, U.S. polyisocyanurate insulation manufacturers begin reporting long-term thermal resistance (LTTR) values based on updated and revised test methods, resulting in lower LTTR values than previous values. Does this change settle a decades-long debate regarding R-values for polyisocyanurate insulation?
This month, U.S. polyisocyanurate insulation manufacturers begin reporting long-term thermal resistance (LTTR) values based on updated and revised test methods, resulting in lower LTTR values than previous values. Does this change settle a decades-long debate regarding R-values for polyisocyanurate insulation?
Date
1/2014
1/2014
Author(s)
Mark Graham
Mark Graham
Page(s)
16
16
Keyword(s)
LTTR; long-term thermal resistance; R-value; polyiso; polyisocyanurate; insulation;
LTTR; long-term thermal resistance; R-value; polyiso; polyisocyanurate; insulation;