pEUI: 13.7 kBtu / sf / yr Air Leakage: 0.65 ACH50 Better Than Code: 74 % HERS Rating: 39 Grid - tied Solar Electric
System, Solar Hot Water
System Plumbed, Radiant Floors, Hydro Air
System, Energy Recovery Ventilator,
Open & Closed
Cell Spray
Foam Insulation, Rigid Insulation, ENERGY STAR Certified
Cons: the health risks are potentially very high, ALL spray
foams contain toxic ingredient Isocyanate (even those that have a percentage of soy and claim to be «eco»), because the material is so rigid closed
cell systems tend to develop cracks in the material compromising the insulative envelope, many people on RV blogs are
opening their walls to remodel and finding a pile of pulverized insulation in the cavities, if the ratio of parts A and B aren't mixed exactly right, the material can off gas toxic fumes perpetually, a code approved fire barrier must be installed over spray
foam in living spaces (such as 1/2» drywall).