Install plywood or oriented strand board osb to act as structural roof sheathing.
Insulating tin roofs.
How to insulate a metal roof hunker.
You can install fiberglass insulation against the metal roof and prevent moisture problems if you cover it with a vapor barrier.
It is still able to cause water condensation and heat loss without any option to address it.
Insulating your metal roof will not only reduce the energy demands of your home but it will save the earth and reduce global warming.
Some homeowners choose to use unfaced fiberglass insulation batts.
You can always make an intricate fiberglass insulation system.
Layer building paper over the sheathing to help protect against moisture and leaks.
The best material for use with metal roof insulation is in the form of foam batting.
Overlap each sheet.
This insulation type is not great for metal roofing insulation underlayment.
However it will add cost for the roofing.
Lay the insulation loosely over the purlin or truss structure the horizontal framework of beams helping to support the roof.
Lay the plywood perpendicular to the roof joists and.
This foam can be used on either the outside or the inside of the sheathing.
Polyurethane spray foam metal roof insulation.
Step 2 pull the insulation so that it extends over the top plate of the wall.