Is there connection between twisting floor joists and cracks in wall on 2nd floor? FAQ

Jan 08, 2015 1 Replies

I purchased my first home about 7 months ago. It was built in 1991. At time of inspection the inspector pointed out some minor cracking in walls around doorways in master bath on second floor. He was confident these were settlement cracks and said I should just cut away old sheetrock and replace.



In December we noticed cracks had become wider and the bathroom door would no longer close completely. The cracks are approximately 45 degree angles starting at corners of door and extending up walls. This has me concerned I might have some foundation issues. The backyard has a slight negative slope and I do have minor moisture in crawl space.



Monday I had an associate from a structure and foundation repair company come out to inspect. The house does not have any cracking downstairs, the cracks are only upstairs around doorway in bathroom. He checked crawlspace and told me I have 4 twisting joists on the side of house where cracks are occurring.



So, my question is is it possible for those twisting joists to cause the cracks? This guy was not an engineer, but he contacted someone to come out and take a look. He has told me this person is an expert and can tell me. The other guy has not made it out yet. I am not an engineer and have little knowledge of structures, but I'm having difficulty understanding how twisted joists in the crawlspace could cause cracks in second floor and not cause any harm to first floor rooms on that side of house. Any information on this would be helpful. The first guy also said the crawlspace walls appear in good shape and I shouldn't worry about anything serious going on, but something about cracks expanding in only 6 months in a house this old doesn't sit well with me.



If anyone has any thoughts or insights into this I would greatly appreciate it.



Thanks


I'd like to hear what the expert or 2nd guy has to say. But, Twisting Joists are not a good thing and can mean something is moving laterally to cause the twisting. Or, that the structure under the first floor is too weak and thus the first floor would move with the joists and have no visual symptoms.

- However, that would mean that the 1st floor is separating from the 2nd floor and the 2nd floor is starting to hang from the roof. So yes, I completely agree with your concern. Cracks are one thing, but a door going so far out of square as to not shut or stay shut is an awful lot of movement for just 6-months.

- The remedy may be to simply put Bridging in between the "previously" twisted joists, which weren't there before or from the start...one of the reasons why Bridging is required. Or, to jack the wall back up to replace rotted structure, install shims and/or reinforce the structure. But, it could also get into discovering that the ground is subsiding and pushing or pulling that corner out of square, hairline cracks may be developing very far from the twisting joist area.

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