Definition, Meaning & Synonyms

purlin

Noun
/ˈpɜːrlɪn/
Definition
A purlin is a horizontal beam used in roof construction to support the roof sheathing and transfer loads from the roof to the rafters or walls.
Examples
  • The purlin is an essential component in the framework of a metal building.
  • During the roof installation, the contractor made sure the purlins were properly aligned.
  • Using steel purlins can enhance the overall strength of the roofing system.
Meaning
In building construction, purlins are crucial structural elements that help to maintain the shape of the roof and provide additional support.
Synonyms
  • Beam
  • Rafter
  • Truss