04-16-2010, 05:29 AM
Technically, Purlins are structural members (usually beams) that are parallel to the ridge of a gable roof. Rafters are structural members (usually 2x6,2x8, etc.) which are perpendicular to the ridge and extend from the ridge to the top of a wall that is parallel with the ridge, and extending to create an overhang or eave . The frieze blocks are between the rafters where they sit atop the wall.
In Hawaii I have often heard the term purlin misused in reference to skip sheeting, the 2x4's atop the rafters which the metal roofing is screwed to.
Are we getting any clearer, or is that just confusing?
Dan
In Hawaii I have often heard the term purlin misused in reference to skip sheeting, the 2x4's atop the rafters which the metal roofing is screwed to.
Are we getting any clearer, or is that just confusing?
Dan