Installing Metal Roofing On Plywood

Make sure that the screws are all aligned evenly as you will be able to see them from the ground if they are.

Installing metal roofing on plywood.

Sweep the plywood clean of all dirt and debris with a push broom. Remove all unused vents pipes and protrusions. After the original roofing is removed what you will want to do first is look for bad pieces of. You will use metal roofing screws to secure the metal panels to the sheathing.

When using plywood nail it directly to the purlins and screw the metal roofing panels through the plywood into the purlins as instructed by the manufacturer. For exposed fasteners avoid over tightening the fastener. Space the screws about 12 in 30 cm apart. And for any exposed fasteners try to avoid over tightening them.

Use your neoprene washer head screws to secure the metal to the sheathing. How to install metal roofing over plywood inspect your plywood. Most metal roofs will also require underlayment as well as a slip sheet. 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. Install the roofing screws vertically along each rib in the panel. Place the first screw.

Applying the underlayment and the slip sheet. Repair any rotted sections of plywood before installing the metal panels. How to apply metal roofing over plywood step 1. Moreover try to ensure that the screws are all aligned evenly.

If a proper roof inspection isn t done the 1x4 s could be installed over rotten plywood which means the screws could pull out. 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. Inspect the plywood for damaged areas. In this installation the vapor barrier is installed on the side of the insulation nearest the interior of the building.