How To Install Metal Roof Insulation
In this video i cover measuring the roof figuring the metal th.
How to install metal roof insulation. Moreover try to ensure that the screws are all aligned evenly. Overlap each sheet. For exposed fasteners avoid over tightening the fastener. Metalroofingonline metalroofing colorbond zincalume purchase insulation blanket here.
Make sure that the screws are all aligned evenly as you will be able to see them from the ground if they are. Commonly used in double layer high r value metal roof insulation systems and in retro fit insulation applications. Using staples will allow you to install the insulation easily and quickly. Space the screws about 12 in 30 cm apart.
Lay the plywood perpendicular to the roof joists and. Use your neoprene washer head screws to secure the metal to the sheathing. 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. This is part 1 of a 6 part video series explaining how i installed a metal roof on my house.
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. To calculate the amount needed multiply your metal roof square footage x 40. 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.
It can lie down perfectly under the metal roofing without having to deal with the hassle. And for any exposed fasteners try to avoid over tightening them. Install plywood or oriented strand board osb to act as structural roof sheathing. Place corner pieces where panels will meet bends at the edge of the roofing.
Layer building paper over the sheathing to help protect against moisture and leaks. Use 1 1 4 inch nails to cover the outline of the roof with strips of metal eave flashing also called edging. How to insulate a metal roof hunker. Install by using staples.
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.