Installing Metal Roofing On Plywood

And for any exposed fasteners try to avoid over tightening them.

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. Use your neoprene washer head screws to secure the metal to the sheathing. Sweep the plywood clean of all dirt and debris with a push broom. Inspect the plywood for damaged areas.

If a proper roof inspection isn t done the 1x4 s could be installed over rotten plywood which means the screws could pull out. 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. 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. Repair any rotted sections of plywood before installing the metal panels.

Most metal roofs will also require underlayment as well as a slip sheet. Place the first screw. Space the screws about 12 in 30 cm apart. Try to space the screws about 12 inches apart down the entire piece of metal.

Remove all unused vents pipes and protrusions. How to apply metal roofing over plywood step 1. After the original roofing is removed what you will want to do first is look for bad pieces of. 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.

For exposed fasteners avoid over tightening the fastener. How to install metal roofing over plywood inspect your plywood. In this installation the vapor barrier is installed on the side of the insulation nearest the interior of the building. Be sure the larger edge is laid so that the small edge of the next panel will overlap it.

But it seems the condensation will affect the 2x4 strapping. Install the roofing screws vertically along each rib in the panel. Moreover try to ensure that the screws are all aligned evenly. Applying the underlayment and the slip sheet.