Insulation Against Metal Siding

Polyurethane foam has the added benefit of sealing air leaks but you shouldn t consider installing it directly against the back of the siding.

Insulation against metal siding.

Therefore if you want heat to stay within the area that has metal siding then insulation is necessary. Spray foam especially closed cell spray foam will cling tenaciously to siding gluing everything together. Each layer is composed of polyethylene bubbles that function as an additional thermal barrier that helps stop condensation. Many homeowners don t find out just how poor an insulator metal siding can be until after it s installed as well at which time it s difficult to remedy the situation.

Adding insulation behind the steel siding also adds even more the considerable expense and installation issues surrounding the material. Metal siding does not have insulating properties. Metal siding and insulation do not go hand in hand and you do have a choice on the matter. A newer option we like from ecofoil is their double bubble wrap roll insulation for metal buildings.

This would require using two or two and a half strips between each stud. Some homeowners choose to use unfaced fiberglass insulation batts. However if the metal siding is just in a garage where you store your car the effort it would take to install insulation may not be worth it. Taping the insulation together to achieve the on center coverage isn t best option either.

Make a better choice for your home. You can install fiberglass insulation against the metal roof and prevent moisture problems if you cover it with a vapor barrier.