Start by marking the plumb line the horizontal line that marks where the wall will meet the rafter.
Framing for a steel roof.
You should be able.
Refer to the rain carrying table in this booklet for the maximum allowable panel length per slope that will provide adequate drainage.
How to building frame a roof by steel frame amazing smart techniques practical implementation.
Install the roofing screws vertically along each rib in the panel.
The open frame substrate uses wood or metal framing members such as bar joists or min.
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.
When placing rafters for a tin roof also frequently referred to as corrugated metal or steel it is common to set the distance between rafters based on the size of the roofing panels.
This allows the panels to be securely attached to the rafters for maximum stability.
Roof pitch the metal roofing panels shown in this manual require a mini mum slope of 2 per foot to ensure proper drainage.
16 gauge purlins to secure the metal roof panels.
Measure your seat cuts.
For longer slopes and lower roof pitches contact fabral for other suitable profiles.
Be sure the larger edge is laid so that the small edge of the next panel will overlap it.
In some cases however the exact spacing of the rafters doesn t matter if the roof has other means of supporting the metal panels.
Place the first screw.