Metal Roof On Plywood Decking

I was planning on putting plywood over the rafters and cross the rafters with a 2 x4 every 16 to secure the metal roof to.

Metal roof on plywood decking.

Our new smooth series cellular deck offers a blemish free beam to pan rivet. The quality and type of underlayments used on the project in the long term will affect the overall performance of the roof. I m in the process of installing a metal roof over an outside deck. Do you need plywood under metal roofing.

Selecting the right underlayments for a lifetime metal roof should be a primary concern for anyone thinking about specifying or choosing to install a metal roof on their home. Hi todd i have a pole barn design structure that had been turned into a livable dwelling with cathedral ceilings using rigid foam between the metal roof and the ceiling sheetrock i am redoing this and putting a decking down with tyvek protec 200 and then reattaching the metal roof and adding circular pest resistant soffit vents at the end rafters of the roof between purlins for ventilation. Sweep the plywood clean of all dirt and debris with a push broom. How to apply metal roofing over plywood step 1.

Remove all unused vents pipes and protrusions. Inspect the plywood for damaged areas. Repair any rotted sections of plywood before installing the metal panels. For many applications a layer of plywood underneath your metal roofing is an unnecessary expense.

My rafters are in place and now i m getting ready to purchase and install my flashing and sheathing. I have removed all the old shingles from the roof boards not plywood the roof is in great shape and have installed an ice shield over the roof.