Install Metal Roofing Over Plywood

Most metal roofs will also require underlayment as well as a slip sheet.

Install metal roofing over plywood.

You will use metal roofing screws to secure the metal panels to the sheathing. Moreover try to ensure that the screws are all aligned evenly. Applying the underlayment and the slip sheet. If a proper roof inspection isn t done the 1x4 s could be installed over rotten plywood which means the screws could pull out.

Repair any rotted sections of plywood before installing the metal panels. Remove all unused vents pipes and protrusions. Use your neoprene washer head screws to secure the metal to the sheathing. But it seems the condensation will affect the 2x4 strapping.

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. Try to space the screws about 12 inches apart down the entire piece of metal. How to install metal roofing over plywood inspect your plywood. Space the screws about 12 in 30 cm apart.

Make sure that the screws are all aligned evenly as you will be able to see them from the ground if they are. How to apply metal roofing over plywood step 1. For exposed fasteners avoid over tightening the fastener. Install the roofing screws vertically along each rib in the panel.

After the original roofing is removed what you will want to do first is look for bad pieces of. Installing the metal roofing over 1x4 s allows the ability to also install additional insulation under the metal roof that can t be done the other two ways. 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. Inspect the plywood for damaged areas.

Sweep the plywood clean of all dirt and debris with a push broom. Be sure the larger edge is laid so that the small edge of the next panel will overlap it. Metal roof installation 2 of 6 featuring edco products. In this installation the vapor barrier is installed on the side of the insulation nearest the interior of the building.

Place the first screw.