A square roof is one in which all the corners are constructed at 90 angles.
Using a steel roofing square.
Rafters are the structural components that provide support for the weight of the roof.
Watch more home repair diy videos.
Before you can use the roofing square you need to work out the ratio of the roof pitch.
When covering the roof with plywood or metal sheets it s necessary to fit the materials to the rafters exactly.
Step 1 work out the ratio of the roof.
In most american states it is standard to express the pitch of the roof as a ratio so you should be able to locate it on blueprints and plans.
When framing a roof whether metal shingled or shaked it must be square.
Squaring metal roofs is relatively easy and required for proper installation.
Proper use of a roofing square features.