0 6 mm or 0 8 mm thick as given in the description of the item and shall be appropriately bent in shape.
How to shape purlin for corrugated roof.
The overlaps ends and sides depends upon the sloop of the roof.
Corrugated sheet roofing.
However if your metal roof has another supporting method the exact spacing is not.
Purlins are 2 by 4 feet and are installed much like metal roofing.
With galvanized j or l hook.
They give added support to the roof and also provide a nailing surface for the end panels and drip edge.
The g s sheets shall be fixed to the purlins or other roof members such as hip or valley rafters etc.
It helps direct water away from the meeting points and keeps the roofing dry.
Next pre drill holes on the end and side ridges of the panels spacing the holes 6 to 8 inches apart.
How to install purlins.
Setting corrugated metal roof purlin spacing in a proper distance is an important part of the entire process.
In order for the sheets to be easily fixed to the purlins as a rough guide they should be at least 50mm wide.
Install vent as close to roof peak as possible.
To install corrugated roofing start by cutting your panels to length with an angle grinder.
Metal roof purlins are installed horizontally under metal roofs.
Flashing is metal trim that fits over joints where two sections of roof meet.
Proper spacing will offer attachment security that resulted in optimal stability.
Bend the flashing into a v shape to fit over the top roof ridge and the corners where the panels meet.
The distance lengths are often based on the roofing panels size.
Overlap roof panels one corrugation away from prevailing wind and nail to rafters starting from one end.
In corrugated sheets the corrugations shall be uniform in depth and pitch and parallel with the side.
Beginning at the outside edge of your roof place each panel directly onto the purlins that are attached to the roof trusses.
Cut to fit pitch of roof and around vent.
The flashing should overlap the edge of the roof by one inch to help direct water.
Apply front and back panels similarly to side walls.
Adjust door construction to desired size.
When positioned roof purlins should be spaced no further than 1 2 metres apart when using sheeting with a thickness of 0 7mm and 1 metre when using 0 5mm sheeting.
