The asphalt in the felt paper is waterproof and does a great job of protecting the untreated wood roof sheathing.
Installing metal roof over sheathing.
In this video i cover measuring the roof figuring the metal th.
Make sure that the screws are all aligned evenly as you will be able to see them from the ground if they are.
Install the roofing screws vertically along each rib in the panel.
Most metal roof companies recommend installing felt paper on roof sheathing before you install the metal roofing.
Moreover try to ensure that the screws are all aligned evenly.
Sweep the plywood clean of all dirt and debris with a push broom.
For exposed fasteners avoid over tightening the fastener.
I d not install plastic on the sheathing because it s a vapor barrier.
Try to space the screws about 12 inches apart down the entire piece of metal.
Space the screws about 12 in 30 cm apart.
Inspect the plywood for damaged areas.
Use your neoprene washer head screws to secure the metal to the sheathing.
How to apply metal roofing over plywood step 1.
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.
Place the first screw.
Repair any rotted sections of plywood before installing the metal panels.
You will use metal roofing screws to secure the metal panels to the sheathing.
The asphalt in the felt paper is waterproof and does a great job of protecting the.
Most metal roof companies recommend installing felt paper on roof sheathing before you install the metal roofing.