Installing Metal Roof Over Flat Roof

Install the first metal panel on the low end of the roof square to the eave.

Installing metal roof over flat roof.

Step 3 install the metal edging. Place the first screw. In this video i cover measuring the roof figuring the metal th. To install it slide the flat wide.

Use your neoprene washer head screws to secure the metal to the sheathing. This is part 1 of a 6 part video series explaining how i installed a metal roof on my house. Snap a vertical chalk line 1 4 inch from the rake edge of the roof using a chalk box. Space the screws about 12 in 30 cm apart.

The installation of metal roofing is often easier and faster than other roof types and because of its simple design and generally large size can actually be installed directly on top of existing roofing materials like asphalt shingles and foam roofing. They need to be about every 2 feet apart. 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. You are essentially sealing off the metal roof with this flashing and you need to make sure that is securely fastened.

The metal roofing will be installed onto the top of the boards. Install the roofing screws vertically along each rib in the panel. Installing metal roofing over existing roofing material can usually be successfully. Take a metal sheet and use inch metal wood screws to affix the roofing onto the wood slats.

If you want to install steel over asphalt your best choice for installing metal roofing is to use a steel shingle system like the one shown instead of the more common and more expensive standing seam steel. Install drip edge drip edge or edge metal is a piece of metal that extends approximately 0 75 inch beyond the roof s edge to channel runoff into your gutters. You can use 1 inch nails for the installation of eave flashing. In a standing seam roof long single panels run vertically all the way from the eave to the ridge.

For exposed fasteners avoid over tightening the fastener. Make sure that the screws are all aligned evenly as you will be able to see them from the ground if they are. Next you are ready to install the metal roof. Ensure that the line is square with the eave.

Begin on the left side of the roof working to the right.