How To Install Insulation Under Existing Metal Roofing

Install by using staples.

How to install insulation under existing metal roofing.

Insert 3 inch galvanized screws through the fastening plates. Lay and attach plywood or osb oriented strand board to the exterior. How do i insulate a metal shed roof with rigid foam. Attach a weather proofing or vapor resistant sheet of material over the plywood.

Make sure that the insulation you are using is the same thickness so that the metal roof will fit better. Lay the plywood perpendicular to the roof joists and fasten it in place using galvanized or stainless steel roofing nails. Measure the roof area and. If you plan to insulate your metal roof with fiberglass go ahead but follow smart installation procedures.

Insert a plate every 2 square feet of insulation board. 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. One of the more popular methods of placing metal roofing on a home is to lay down purlins across the existing shingles. Remove the existing roof if you have one.

Insulating a new metal roof step 1 install plywood or oriented strand board osb to act as structural roof sheathing. Position the fastening plates over the insulation board. Enter fiberglass insulation a common relatively inexpensive easy to use product. Use a drill to drive.