How do you know the difference? My house was built in 2006, and I'm seeing many cracks in the drywall.
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Foundation issue or settling?
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Originally posted by Couver View PostWould the crack around the window be from the aluminum wrap around strip that is used on edges? How long does a house here take to "settle" anyways?
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Originally posted by ceyko View PostAs far as I can tell, with a lot of these slabs - there is always some level of shifting - but I'm not expert.
Think of it most by looking at a garage. A two car garage that sits out from the rest of the house will have a large opening in the front with very small sections on each side (the returns) to provide strength in a lateral direction. When the wind blows against the perpendicular wall, the front and the back of the garage have to provide stiffness to prevent the walls from racking. Since the doors create a large opening, those small sections of wall have to resist the forces. The minimum panel length the code allows is 4' (the OSB or plywood panel). Obviously, most garages don't have 4' returns. The code allows for narrower options, but they require special framing and large metal straps into the foundation. Without the proper panels, the walls will rack/move ever so slightly and can result in drywall cracks.
Edit: This doesn't just apply to exterior walls. When looking at the load path of a house and the load resisting elements, the rule is that "load follows stiffness." I often see problems on interior walls because the sheathing on exterior walls is so poor that load ends up transferred to interior walls when it shouldn't be there at all. That leads to cracks and shifting of the drywall.
This doesn't just apply to the garage. It applies to the entire house. Unfortunately, most framers wrap the house in cardboard like sheathing because it's cheap. It's also unfortunate that most code enforcement doesn't make them build to code. Think about all the areas in the house that are full of glass or framing offsets. That's usually where you see the problems. I teach classes on wall bracing all the time and often help builders develop layouts to be code compliant. Over 90% of the problems I see attributed to foundation/bad soil are really because the homes are poorly braced.
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Originally posted by bjtheman1 View Post/\ I have to agree! my house is a DR Horton home and I've seen many corners cut in areas where built.
I also have nail holes starting to pop out of the drywall too?
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