ASTM R-value 4.5 + (the colder the temperature the higher the R-value you will require) - suitable for use in Winter temperatures of -10C and below (often combined with a Closed Cell Foam mat in extreme temperatures).
ASTM R-value 4.5 + (the colder the temperature the higher the R-value you will require) - suitable for use in Winter temperatures of -10C and below (often combined with a Closed Cell Foam mat in extreme temperatures).