11 Best Of What To Put Under A Tin Roof New Update 2021. Close or seal off the ends with a wood or plastic strip under the panel at each end. Build your structure where possible in an elevated position with good natural drainage Place a vapor retarder under floor gravel or concrete Ventilate enclosed building when concrete is being poured and continue to ventilate until it is cured.
I prefer to see the use of asphalt felt underlayment because asphalt felt allows OSB or plywood roof sheathing to dry to the exterior when necessary. Place layers of building paper over the sheathing. For many applications a layer of plywood underneath your metal roofing is an unnecessary expense.
When this happens the tin roof can rust and even warp.
When this happens the tin roof can rust and even warp. Attached to purlins horizontal pieces of wood or metal fastened to roofing trusses are structurally sound when installed according to your roofing manufacturers instructions and local building codes. Build your structure where possible in an elevated position with good natural drainage Place a vapor retarder under floor gravel or concrete Ventilate enclosed building when concrete is being poured and continue to ventilate until it is cured. Jan 10 2017 On most projects there are two types of underlayments needed.