Installing Metal Roof Over Sheathing

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 roof over sheathing.

Try to space the screws about 12 inches apart down the entire piece of metal. For exposed fasteners avoid over tightening the fastener. Moreover try to ensure that the screws are all aligned evenly. Remove all unused vents pipes and protrusions.

The asphalt in the felt paper is waterproof and does a great job of protecting the. This is part 1 of a 6 part video series explaining how i installed a metal roof on my house. I d not install plastic on the sheathing because it s a vapor barrier. Place the first screw.

How to apply metal roofing over plywood step 1. Most metal roof companies recommend installing felt paper on roof sheathing before you install the metal roofing. Be sure the larger edge is laid so that the small edge of the next panel will overlap it. 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.

And for any exposed fasteners try to avoid over tightening them. The asphalt in the felt paper is waterproof and does a great job of protecting the untreated wood roof sheathing. Install the roofing screws vertically along each rib in the panel. Space the screws about 12 in 30 cm apart.

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. Repair any rotted sections of plywood before installing the metal panels.