To calculate the amount needed multiply your metal roof square footage x 40.
How to install metal roof insulation.
But it is important to make sure that the paper liner is installed correctly between the sheathing and the insulation to prevent mold and mildew.
You can easily go through several sheets of insulation and know that they are secure.
How to insulate a metal roof hunker.
Use 1 1 4 inch nails to cover the outline of the roof with strips of metal eave flashing also called edging.
Overlap each sheet.
In this video i cover measuring the roof figuring the metal th.
Install by using staples.
As a place where mold can quickly grow it is important to make sure that the paper liner is placed between the insulation and the sheathing.
Using staples will allow you to install the insulation easily and quickly.
Use your neoprene washer head screws to secure the metal to the sheathing.
Lay the plywood perpendicular to the roof joists and.
You will use metal roofing screws to secure the metal panels to the sheathing.
Install plywood or oriented strand board osb to act as structural roof sheathing.
It can lie down perfectly under the metal roofing without having to deal with the hassle.
For exposed fasteners avoid over tightening the fastener.
If there are gutters installed on the eaves the eave flashing should be installed to overhang the lip of the gutter by about 1 2 inch.
This is part 1 of a 6 part video series explaining how i installed a metal roof on my house.
Moreover try to ensure that the screws are all aligned evenly.
Steel bands typically 1 wide are screwed to the underside of the metal purlin or wood truss in a pole barn 30 apart creating a grid system.
Try to space the screws about 12 inches apart down the entire piece of metal.
Place corner pieces where panels will meet bends at the edge of the roofing.
Make sure that the screws are all aligned evenly as you will be able to see them from the ground if they are.
The easiest and by far the quickest way to install metal roof insulation is with 1 inch staples.
And for any exposed fasteners try to avoid over tightening them.
Metalroofingonline metalroofing colorbond zincalume purchase insulation blanket here.