Metal Roof On Plywood

Considering when to.

Metal roof on plywood.

Place the first screw. How to install metal roofing over plywood inspect your plywood. He won t do it unless i put on plywood as a base he also recommended ice and water underlayment. In reading online it seems wise to install a vapor barrier over the plywood to prevent condensation from getting adsorbed into the plywood from the steel roof.

How to apply metal roofing over plywood step 1. The asphalt in the felt paper is waterproof and does a great job of protecting the. Most metal roof companies recommend installing felt paper on roof sheathing before you install the metal roofing. 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.

Align the first metal roofing panel so that it overlaps the edging by 1 2 to 3 4 of an inch and is square to the roof. For many applications a layer of plywood underneath your metal roofing is an unnecessary expense. But it seems the condensation will affect the 2x4 strapping. The quality and type of underlayments used on the project in the long term will affect the overall performance of the roof.

In a barn shop or other outbuilding you can attach your metal roof directly to the purlins. Applying the underlayment and the slip sheet. Inspect the plywood for damaged areas. Repair any rotted sections of plywood before installing the metal panels.

Most metal roofs will also require underlayment as well as a slip sheet. I have an existing steel roof presently just on purlins. 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. Remove all unused vents pipes and protrusions.

April 3 2017 filed under. Add purlins on top of this for venting and drainage then add horizontal purlins to mount the metal roof to. Do i need the plywood base. Be sure the larger edge is laid so that the small edge of the next panel will overlap it.

Sweep the plywood clean of all dirt and debris with a push broom. Metal roofing roofing answers roofing installation roofing materials oriented strand board commonly referred to as osb is a type of engineered lumber similar to particle board formed by adding adhesives and then compressing layers of wood strands. It needs to be replaced due to leaks and one contractor the one i d really like to hire refuses to put the new metal roof on just purlins. After the original roofing is removed what you will want to do first is look for bad pieces of.

Use the reinforced solitex mento plus roof underlayment on top of your rafters.