How To Install Flat Metal Roof

Step 4 laying the sheets.

How to install flat metal roof.

Install the roofing screws vertically along each rib in the panel. These will stop the entry of rain wind and pests. And for any exposed fasteners try to avoid over tightening them. They give added support to the roof and also provide a nailing surface for the end panels and drip edge.

Place them directly onto purlins that are attached to the roof trusses beginning on the outside edge. Step 3 install the metal edging. Purlins are 2 by 4 feet and are installed much like metal roofing. Space the screws about 12 in 30 cm apart.

Measure the height of your roof adding 2 to 4 inches to your measurement to allow overhang. Step 2 create a base. Place the first screw. Try to space the screws about 12 inches apart down the entire piece of metal.

They are installed on top of the roof rafters with a felt underlayment or vapor barrier installed on top. Of course you don t need to live in a modern house to deal with a flat roof. Creating a flat roof can be completed as either a diy weekend project or by a professional contractor. Step 1 measure the roof height.

Measure the height. Make sure that the screws are all aligned evenly as you will be able to see them from the ground if they are. 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. Metal roof purlins are installed horizontally under metal roofs.

What s involved in how to install metal roofing. For first time homeowners it s typical to hire a professional contractor who can complete the flat roof installation for you and offer a full warranty for their work. Yet for historic modern style buildings like this old house s cambridge tv project flat roofs are at the core of the architecture meant to reflect the broad horizontal lines of the natural landscape. How to install metal roofing.

You will use metal roofing screws to secure the metal panels to the sheathing. Use your neoprene washer head screws to secure the metal to the sheathing. Close or seal off the ends with a wood or plastic strip under the panel at each end. Be sure the larger edge is laid so that the small edge of the next panel will overlap it.

Moreover try to ensure that the screws are all aligned evenly. Flat roofs aren t architecturally logical as rain and snow will shed much more quickly off a sloped roof. Codes vary so call your local building department to know how to install metal roofing over shingles properly code wise.