5a5b00f7_Insulation_vs__Foam_Insulation__COMMENT
[CHARACTERISTIC] Air Tightness — Air changes per hour (ACH) [FOAM INSULATION] 0.20 [CELLULOSE INSULATION] 0.30 [COMMENT] 
Building experts recommend that ACH not be less than 0.35 in order to maintain a healthy environment.
Cellulose Insulation vs. Foam Insulation
COMMENT