Installing Metal Roof Over Sheathing

The asphalt in the felt paper is waterproof and does a great job of protecting the.

Installing metal roof over sheathing.

For exposed fasteners avoid over tightening the fastener. In this video i cover measuring the roof figuring the metal th. Moreover try to ensure that the screws are all aligned evenly. You will use metal roofing screws to secure the metal panels to the sheathing.

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. Inspect the plywood for damaged areas. Sweep the plywood clean of all dirt and debris with a push broom.

Try to space the screws about 12 inches apart down the entire piece of metal. 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. Remove all unused vents pipes and protrusions. Repair any rotted sections of plywood before installing the metal panels.

Space the screws about 12 in 30 cm apart. Use your neoprene washer head screws to secure the metal to the sheathing. I d not install plastic on the sheathing because it s a vapor barrier. Install the roofing screws vertically along each rib in the panel.

The asphalt in the felt paper is waterproof and does a great job of protecting the untreated wood roof sheathing. How to apply metal roofing over plywood step 1. Make sure that the screws are all aligned evenly as you will be able to see them from the ground if they are. Most metal roof companies recommend installing felt paper on roof sheathing before you install the metal roofing.