Purlin
A horizontal beam along the length of a roof that rests on principals (pairs of angled supporting beams that meet at the top) and supports the common rafters.
A horizontal beam along the length of a roof that rests on principals (pairs of angled supporting beams that meet at the top) and supports the common rafters.
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1. Architects
5. CAD
8. Remortgage
10. Loft Extension
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