How To Install Metal Roofing Over Plywood

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.

How to install metal roofing over plywood.

Remove all unused vents pipes and protrusions. In this installation the vapor barrier is installed on the side of the insulation nearest the interior of the building. Inspect the plywood for damaged areas. This is not a complete install only basic install on a bungalow i.

Install the roofing screws vertically along each rib in the panel. Try to space the screws about 12 inches apart down the entire piece of metal. But it seems the condensation will affect the 2x4 strapping. Applying the underlayment and the slip sheet.

Moreover try to ensure that the screws are all aligned evenly. Repair any rotted sections of plywood before installing the metal panels. 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. Place the first screw.

How to install metal roofing over plywood inspect your plywood. 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. Make sure that the screws are all aligned evenly as you will be able to see them from the ground if they are. Sweep the plywood clean of all dirt and debris with a push broom.

For exposed fasteners avoid over tightening the fastener. After the original roofing is removed what you will want to do first is look for bad pieces of. In this video i m installing some metal roofing over an existing ash fault shingled roof. Use your neoprene washer head screws to secure the metal to the sheathing.

You will use metal roofing screws to secure the metal panels to the sheathing. To watch the entire series from the beginning click here. And for any exposed fasteners try to avoid over tightening them. 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.

How to apply metal roofing over plywood step 1.