ashthekid Posted May 21, 2021 Share Posted May 21, 2021 Just how important are purlins in a timber frame roof & wall structure with vaulted ceilings and two king trusses in? Link to comment Share on other sites More sharing options...
markc Posted May 21, 2021 Share Posted May 21, 2021 Pulins serve two purposes, one to support the roof itself and second to stabilize the trusses Link to comment Share on other sites More sharing options...
George Posted May 21, 2021 Share Posted May 21, 2021 Purlins are integral the the roof structure and often form part of the restraint to gable walls. In a king truss roof they will be halving the span for the rafters. In a word - 'very'. Link to comment Share on other sites More sharing options...
Russell griffiths Posted May 21, 2021 Share Posted May 21, 2021 It all depends on the design, you can build a roof with no purlins, no problem, but having a roof designed with purlins and then not putting them in. Well that’s an altogether different situation. Link to comment Share on other sites More sharing options...
Temp Posted May 21, 2021 Share Posted May 21, 2021 2 hours ago, George said: Purlins are integral the the roof structure and often form part of the restraint to gable walls. In a king truss roof they will be halving the span for the rafters. In a word - 'very'. +1 Best get input from an SE before doing any modifications. Link to comment Share on other sites More sharing options...
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