Insulation Against Metal Siding

Therefore if you want heat to stay within the area that has metal siding then insulation is necessary.

Insulation against metal siding.

Spray foam especially closed cell spray foam will cling tenaciously to siding gluing everything together. Polyurethane foam has the added benefit of sealing air leaks but you shouldn t consider installing it directly against the back of the siding. Make a better choice for your home. Each layer is composed of polyethylene bubbles that function as an additional thermal barrier that helps stop condensation.

You can install fiberglass insulation against the metal roof and prevent moisture problems if you cover it with a vapor barrier. A newer option we like from ecofoil is their double bubble wrap roll insulation for metal buildings. The stud spacing on our metal buildings are typically 4 or 5 foot on center. Metal siding and insulation do not go hand in hand and you do have a choice on the matter.

Some homeowners choose to use unfaced fiberglass insulation batts. This would require using two or two and a half strips between each stud. Rolled fiberglass insulation generally comes in rolls of 15 inches up to a maximum of 24 inches wide. Metal siding does not have insulating properties.

A second option for insulating a wall with no sheathing is to use spray foam. 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.