Insulating A Metal Porch Roof

The batts are located side to side on the rafter of the roof.

Insulating a metal porch roof.

Metal roof insulation increases the temperature of the inside surface of the ceiling. Lay the plywood perpendicular to the roof joists and fasten it in place using galvanized or stainless steel roofing nails. This is different from the normal roll up type of insulation as it comes in panels rather than paper covered fiberglass. Ya the new pressure treated wood they took out arsnic and added more copper will eat through any metal.

Both materials make a great physical barrier between the interior building and the metal roof. Insulating a new metal roof step 1 install plywood or oriented strand board osb to act as structural roof sheathing. If you re willing to invest some more consider an insulated porch roof. Fiberglass batts or glass mineral wool metal roof insulation the most common material used for an insulating metal roof is fiberglass batts or glass mineral wool.

The insulation should fit snugly to prevent air from getting through. If you are experiencing mold and mildew growth damp spots on your ceilings and walls or musty odors there is a good chance that your metal roof is not properly insulated. This in turn prevents moisture condensation on the metal roof. This foam can be used on either the outside or the inside of the sheathing.

Condensation can cause your ceiling to rot. But for insulation i would tack up some 1 foil faced rigid foam sheeting and then cover it with wafer board or plywood which you could paint or whatever. The best material for use with metal roof insulation is in the form of foam batting.