Exterior wall “headers”
I’m planning to build a one story ‘green’ energy efficient, net zero with PV panels, house in northern Michigan. I plan on using ‘advanced framing’ 24″ OC for my exterior double stud walls. I would like to use trusses specifically made to “replace” one stud or two studs (this may require some slight ‘repositioning’ of openings). The trusses bottom chord would be the top of the rough opening and it’s top chord would sit directly under the single top plate. In my situation, only two truss lengths would be needed , 46 1/2″ and 70 1/2″.. Since I’ll have 9′ ceilings and 6’10” door & window tops the trusses are about 2′ high. The trusses would be rather simple, having just two angled members, but designed to support the concentrated loads above them that occur 24″ OC. The advantages of this approach include much less ‘thermal bridging’ for higher “whole wall’ r value, greener because it uses less and smaller lumber.. While such trusses could be fabricated ‘onsite’ by reasonably skilled carpenters it is probably best to have them made by a truss manufacturer as the result would, no doubt, be stronger & more uniform . My questions: Is this commonly done? Should I expect “flak” from building inspectors etc? Any other issues?
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