Purlins support the loads from the roof deck or sheathing and are supported by the principal rafters and or the building walls steel beams etc.
How to support roof purlins.
Double them up in valleys.
How to support roof purlins.
Snap a chalk line horizontally across the roof two feet down from the top.
How to install metal roof purlins.
Placing the roof along the perimeter of your roof is.
Here are several useful tips for purlin installations.
In architecture or structural engineering or building a purlin or purline is a horizontal structural member in a roof.
Once your purlins have been fitted and a supporting framework has been created you should look to carry out an inspection before you continue work.
Have them installed by following the edges or sides of your roof.
Purlins can be fixed to rafters and all joins and laps should be supported by a rafter.
The support system for the roof is comprised of ridgepole and rafters or purlins.
Using a combination of rafters and purlins is common.
Run a tape measure from end to end along the rafters of the roof to determine how many purlins will be needed for installation.
Lay the first purlin at the ridge.