How To Install Flat Metal Roof

Measure the height.

How to install flat metal roof. Step 5 install the metal trim. Step 2 create a base. You will use metal roofing screws to secure the metal panels to the sheathing. Of course you don t need to live in a modern house to deal with a flat roof.

They give added support to the roof and also provide a nailing surface for the end panels and drip edge. Install the roofing screws vertically along each rib in the panel. Place them directly onto purlins that are attached to the roof trusses beginning on the outside edge. 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.

Use your neoprene washer head screws to secure the metal to the sheathing. And for any exposed fasteners try to avoid over tightening them. Measure the height of your roof adding 2 to 4 inches to your measurement to allow overhang. Purlins are 2 by 4 feet and are installed much like metal roofing.

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. Moreover try to ensure that the screws are all aligned evenly. Be sure the larger edge is laid so that the small edge of the next panel will overlap it.

So if your roof has two layers it may require a complete tear off even though steel is lighter than asphalt. Codes vary so call your local building department to know how to install metal roofing over shingles properly code wise. Try to space the screws about 12 inches apart down the entire piece of metal. Close or seal off the ends with a wood or plastic strip under the panel at each end.

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. Creating a flat roof can be completed as either a diy weekend project or by a professional contractor. Make sure that the screws are all aligned evenly as you will be able to see them from the ground if they are. These will stop the entry of rain wind and pests.

Step 1 measure the roof height. For exposed fasteners avoid over tightening the fastener. Flat roofs aren t architecturally logical as rain and snow will shed much more quickly off a sloped roof. Space the screws about 12 in 30 cm apart.

Step 4 laying the sheets. Place the first screw. Step 3 install the metal edging.