Insulation Against Metal Siding

Adding insulation behind the steel siding also adds even more the considerable expense and installation issues surrounding the material.

Insulation against metal siding.

You can install fiberglass insulation against the metal roof and prevent moisture problems if you cover it with a vapor barrier. 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. Each layer is composed of polyethylene bubbles that function as an additional thermal barrier that helps stop condensation. This would require using two or two and a half strips between each stud.

Taping the insulation together to achieve the on center coverage isn t best option either. A second option for insulating a wall with no sheathing is to use spray foam. A newer option we like from ecofoil is their double bubble wrap roll insulation for metal buildings. Make a better choice for your home.

Spray foam especially closed cell spray foam will cling tenaciously to siding gluing everything together. The stud spacing on our metal buildings are typically 4 or 5 foot on center. 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. Therefore if you want heat to stay within the area that has metal siding then insulation is necessary.

Some homeowners choose to use unfaced fiberglass insulation batts. Polyurethane foam has the added benefit of sealing air leaks but you shouldn t consider installing it directly against the back of the siding.