Should Metal Roofing Be Installed Over Decking On Open Shed

I m designing my own house and want to use metal roofing.

Should metal roofing be installed over decking on open shed.

The advantage of a metal roof or tin roof is that it has a 50 year plus lifespan. Install waterproof felt over the plywood to add protection against moisture. The quality and type of underlayments used on the project in the long term will affect the overall performance of the roof. Let s take a look at the most common types of metal roofs for houses.

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. Energy efficient and available in a variety of colors that will. Of coarse there will be eave and ridge vents. Tina i m in the same boat.

For many applications a layer of plywood underneath your metal roofing is an unnecessary expense. 3 install 1x4 purlins down over the shingles before installing the metal roof the third way to install a metal roof over shingles is by applying 1x4 purlins over the shingle roof. And it comes in many shapes sizes and colors. I m a carpenter here in asheville nc zone 4 5 and trying to design a home for myself so i need to make it as inexpensive and green as possible.

I m thinking of a shed roof using flat trusses with blown cellulose to r 60 and a metal roof. The plywood should be clean and free of raised nail heads to provide a uniform deck structure for the metal. Doesn t provide the flattest surface for the metal roofing to be installed over each course of shingles is about a 1 8 higher than the course just below it. If you install it properly you can pretty much forget maintenance for the life of the shed.

Ensure that the plywood deck is strong enough to withstand the added weight of the metal panels. 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. They do all insist that decking not be osb for all the reasons others have mentioned. An affordable option and easier to lay than shingles tin is the most commonly used type of metal roofing.

Nobody wants to give me the tried and true method for a drip free installation over purlins. So do i need to sheath the roof for metal or will just using purl ins work.