noun
definition
A longitudinal structural member bridging two or more rafters of a roof.
Examples of purlins in a Sentence
The reed was attached to the purlins under strips of split hazel, which were then tied down with hemp twine.
Queen post - a pair of vertical timbers rising from a tie beam to support purlins.
A gabled roof runs north to south with a large tie-beam against the north wall; molded purlins.
Roof of rafters and chamfered purlins with one cambered tie beam.
From these beams sloping struts carry the lower purlins.
The simple wagon roof of two bays is coved with decorated purlins, molded ribs and quatrefoil tracery.
Plastered ceiling, and a boss with a painted flower motif, centrally placed; exposed purlins.
The main purlins are made of glue laminated timber which also has additional fire resistance.
Then finally we put on the roof purlins for others to finish off.
There is space between the principals and side purlins and the roof.
Low Priority Paint steel roof purlins, replace rotten timbers within the purlin angle sections.
Roof of four arch-braced collar trusses with king and arcing struts; intermediate trusses with collars and king struts; rafters and through purlins.
Flagged floor; walls roughly plastered and whitewashed; roof has rafters, purlins and one tie-beam truss with struts - some old timbers.
Inside chamfered ceiling beams and single and double purlins of roofs visible.
Roof of four and a half bays with arch-braced collar trusses and raking struts, flat purlins and two tiers of cusped windbraces.