How To Build A Flat Metal Roof

The insulation thickness of 8 inches is laid as a flat carpet.

How to build a flat metal roof.

Be sure the larger edge is laid so that the small edge of the next panel will overlap it. How to make a flat roof have a pitch general steps step 1. Hoist the trusses onto the roof. Frame the roof one important and perhaps not so obvious fact is that a flat roof is not actually flat.

Place the first screw. Attach a board uncut to the settle rafters on which you need to lay a vapor barrier material film construction. A flat garage roof is far easier to build than one with a pitch. Use ladders or scaffolding if you are building the roof onto a building that is still a frame.

How to install metal roofing. Install the roofing screws vertically along each rib in the panel. Determine the roof span and pitch. Step 1 measure the roof height.

First things first roofing contractors conduct the necessary measurements to make sure that they know. Measure the height of your roof adding 2 to 4 inches to your measurement to allow overhang. Step 3 install the metal edging. Taking into consideration that you will be working at some height it is advisable to use at least two ladders and to have a helper as lifting the timber into place will take two sets of arms.

Step 5 install the metal trim. Add the plywood once you ve added the framing it s time to add a layer of 5 8 inch plywood sheathing. Flat roofs aren t architecturally logical as rain and snow will shed much more quickly off a sloped roof. Step 4 laying the sheets.

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. Tear off the old materials and apply roof sheathing. 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. Stack insulation boards on the film top.

Of course you don t need to live in a modern house to deal with a flat roof. Joints are sealed with vapor barrier. This material must be laid across the rafters and overlap. Step 2 create a base.

To complete this step the wall frames of the building must already be level plumb and square. The 8 step process for diy installation step 1.