Insulating Metal Roof No Sheathing

We live in zone 5 suburb of chicago and are hopefully about to put rigid foam above the roof sheathing on just the northeast roof portion of our roof.

Insulating metal roof no sheathing.

Then a second layer of plywood sheathing and asphalt shingles following the steps explained in this article. When the metal is eventually replaced roofs without plywood underlayment require the insulation to be replaced or repaired because it is attached to the metal. Look for water stains on the roof sheathing or damp or moldy spots on attic joists and existing insulation as a clue to where leaks might be. The house has steel roofing installed over 1x3 purlins.

Metal roofing is one of the most durable and long lasting roof materials on the market and can easily last for decades with little maintenance. Can i insulate with foam board. You can insulate a new or existing metal roof using a variety of different techniques. To maximize the energy efficiency of these roofs the roof structure must be properly insulated.

There is no plywood roof sheathing. I m concerned about possible condensation on the underside of the steel roofing and i would like to know the best way to insulate this ceiling from the underside. 4 of polyiso under 4 of eps all above the original roof sheathing. Talking about metal roof insulation this thing is one of the most challenging things people work in this field is facing it demands and requires excellent skill and expertise which you may only get from a reputable roofing contractor.

Box out light fixtures. Planning for repairs three decades away may seem imprudent but the cost of plywood today likely is much less than the cost and hassle of re insulating down the road. I need to insulate a cathedral ceiling that will be finished with tongue and groove pine paneling. Additionally insulation serves as a way to enhance sound proofing on the uppermost envelop of your house.