In a rush to install my floor trusses today ( to bet the rain coming) we didnt pay attention to the line of chase for hvac duct line. Will needless some trusses about half out of 35 trusses were switched around. So now looking at trying and pull up those trusses and turn them around, without doing major damage to the truss. Were thinking of leaving them but instructions call for a 2×6 strongback running continously down that chase line. I guess I looking for advice on what to do change them or offset the strongback somewhat? Thanks, Roger
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Take the trusses out and turn them around. There is not another option, unless your can get the eng to resertify the changes.
Thanks thats what we ended up doing, wasnt as bad as I once though, hired a real carpenter after that experience.
Guess it's a little late, since you already switched them around. But I'll chime in anyway just in case this happens to someone else.
The 2X6 strongbacks are recommended at 10' O.C. but not required. (Unless required by your local code) They're not a bad idea though - I wouldn't suggest leaving them out.
But there's more than one way to skin a cat. The strongbacks can be installed several ways. Nailing them to a vertical member in the truss is probably easiest. This works well where there is a duct chase, but can also be in the way of your HVAC ducts if they're run in the trusses.
Another method is to nail your own verticals to the side of the trusses, then nail the strongbacks to that. See the following image:
http://www.woodtruss.com/faqanswers/detail06large.gif
There are other ways to attach them also - Like using a hurricane tie at each joint. So you probably could have left them as they were and gotten the strongbacks in anyway.
Who stopped the payment on my reality check?
Glad to be of some help!