Framing For A Steel Roof

16 gauge purlins to secure the metal roof panels.

Framing for a steel roof.

The open frame substrate uses wood or metal framing members such as bar joists or min. These members may be individual pieces of wood formed steel or truss like members built from multiple individual pieces. For longer slopes and lower roof pitches contact fabral for other suitable profiles. Install the roofing screws vertically along each rib in the panel.

Start by marking the plumb line the horizontal line that marks where the wall will meet the rafter. How to building frame a roof by steel frame amazing smart techniques practical implementation. While you re at it some carpenters. Roof pitch the metal roofing panels shown in this manual require a mini mum slope of 2 per foot to ensure proper drainage.

In some cases however the exact spacing of the rafters doesn t matter if the roof has other means of supporting the metal panels. Be sure the larger edge is laid so that the small edge of the next panel will overlap it. 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. Refer to the rain carrying table in this booklet for the maximum allowable panel length per slope that will provide adequate drainage.

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. You should be able. Line up the square with the plumb line then rotate it 180 degrees realigning the square on the other side of the.