How To Install Insulation Under Existing Metal Roofing

Lay the plywood perpendicular to the roof joists and fasten it in place using galvanized or stainless steel roofing nails.

How to install insulation under existing metal roofing.

Position the fastening plates over the insulation board. Attach a weather proofing or vapor resistant sheet of material over the plywood. In this case simply lay the insulation between the purlins. It can lie down perfectly under the metal roofing without having to deal with the hassle.

One of the more popular methods of placing metal roofing on a home is to lay down purlins across the existing shingles. Enter fiberglass insulation a common relatively inexpensive easy to use product. Insulating a new metal roof step 1 install plywood or oriented strand board osb to act as structural roof sheathing. Measure the roof area and.

Using staples will allow you to install the insulation easily and quickly. Install by using staples. How do i insulate a metal shed roof with rigid foam. Use a drill to drive.

If you plan to insulate your metal roof with fiberglass go ahead but follow smart installation procedures. But it is important to make sure that the paper liner is installed correctly between the sheathing and the insulation to prevent mold and mildew. Remove the existing roof if you have one. Insert a plate every 2 square feet of insulation board.