As soon as it get cold in the winter and masses feel the cold floors on their sensitive feet and they realize that there is definitely insufficient insulation in there garage ceiling.
First we should remember that whatever insulation was put in the garage is air permeable , which means it only retains %30 of the heat loss.
Second, there are always ducts running through the garage. As soon as a heated duct makes contact with the cold air, we get condensation and the warm air in the ducts gets cold, the air is so cold that it stops warming the room.
The condensation can quickly semi-saturate the insulation , even small amounts of moisture can cause a reduction in the fiber insulation’s R-value , as much as %50.
If not properly ventilated this can lead to mold, and mold makes people sick.
The best insulation for a garage is spray foam insulation.It eliminates air infiltration,your home becomes more comfortable, it is permanent, better air quality and save on energy costs.Also it will have a positive impact on your HVAC equipment, less wear and tear. It does not condensate or mold and keeps your ducts super insulated while keeping the cold air of the garage out of your home.
So next time you get out of bed and touch your freezing floors with your bare feet that cause sharp pains from your ankles to your knees. Just remember you need to foamit