What is The R-Value of Enviro Foam?
Enviro Foam has the highest R-Value (7 per inch) of any insulation product available today. Also, unlike Fiber Insulations such as Fibrglass, Cellulose, and Rockwool, Enviro Foam has a “real world” R-Value which is not affected by external forces. Studies by the US Department of Energy found that Fiber Insulations loose half of their R-Values when outside temperatures reach -28°C. Similar tests found the same effect from wind, with Fiber Insulations loosing half of their R-Values when exposed to a 15 km/h wind.
I would question the validity of that claim – I would imagine the R-7 to be the initial R-value (immediately after installation), but what are the Aged (after three months) R-values or the LTTR (Long-term-thermal-resistance) values? In the long run the R-value is going to be closer to R-5 per inch.
