Metal Roof On Plywood Decking

Unfortunately many homeowners who have a flat deck roof have to deal with frequent leaks.

Metal roof on plywood decking.

Metal roofing panels rated for architectural use attached to purlins horizontal pieces of wood or metal fastened to roofing trusses are structurally sound when installed according to your roofing manufacturer s instructions and local building codes. My rafters are in place and now i m getting ready to purchase and install my flashing and sheathing. The thickness of plywood used for roof decking depends on the roof slope the spacing of rafters and the weight of other material to be put over the decking as well as the design load the. If you re a contractor this is no news to you.

For many applications a layer of plywood underneath your metal roofing is an unnecessary expense. Let s take a look at the most common types of metal roofs for houses. Rotted sagging areas in your roof s plywood decking should be replaced prior to installing metal panels in order to prevent costly repairs in the future. I m in the process of installing a metal roof over an outside deck.

Of roof decking costs 800 2 800 to install depending on the material you choose. In the process of constructing a roof there are typically two different roof decking materials. This component is essential in both metal roofing and traditional asphalt shingle roofing. 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.

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. Whether you are looking to install a metal roof on a shed or a house it s important to know the difference in the various types of metal roofs available. The quality and type of underlayments used on the project in the long term will affect the overall performance of the roof. On average 300 sq ft.

This is usually because low quality leak prone decking materials such as epdm rubber are used often in an effort to save money. Ensure that the plywood deck is strong enough to withstand the added weight of the metal panels.