Air Krete Insulation is fire proof, environmentally friendly, safe and non-toxic insulation. Free of CFC's & formaldehyde, mold resistant & pest resistant because Air Krete has a drying effect on the pests. Air Krete is a foamed in mgo base insulation that completely fill all cavities including door and window casings. Air Krete ahs a high R Value of 3.9 per inch. There is 0% Shrinkage and has...