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A purlin (or historically purline, purloyne, purling, perling) is a longitudinal, horizontal, structural member in a roof. In traditional timber framing there are three basic types of purlin: purlin plate, principal purlin, and common purlin.
In wood construction, In steel construction & Gallery
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purlins construction common steel roof rafters principal also plate building wood called framed roofs sections section timber may term supporting
| Subject | Predicate | Object | Confidence | Src |
|---|---|---|---|---|
| purlins | instance of | secondary members | 0.80 | text |
| Purlin | related to Common purlin | Common | 0.60 | section |
| Purlin | related to Common purlin | North America | 0.60 | section |
| Purlin | related to Common purlin | English | 0.60 | section |
| Purlin | related to Common purlin | Massachusetts Bay Colony | 0.60 | section |
| Purlin | related to Common purlin | No | 0.60 | section |
| Purlin | related to Common purlin | England | 0.60 | section |
| Purlin | related to Common purlin | Historically | 0.60 | section |
| Purlin | related to Common purlin | New England | 0.60 | section |
| Purlin | related to Common purlin | Maine | 0.60 | section |
| Purlin | related to Common purlin | New York | 0.60 | section |
| Purlin | related to Common purlin | St | 0.60 | section |
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