discoloration in walls


Old 01-20-04, 08:19 AM
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discoloration in walls

5 year old house showing discoloration, shadowing where studs are. Paint job is original, one coat, flat white---minimal coverage by the contractor. I'm looking to repaint, but want to make sure there is not an issure. Is it the quality of the paint job, or is there a deeper issue?
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Old 01-20-04, 01:35 PM
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Maybe it's just a bad paint job. Maybe it's a bigger problem. Do you have at least 1/2 inch drywall on the walls and ceilings? Are your studs 16" on center? One coat of flat white is not a good paint job.
Old 01-22-04, 10:06 AM
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yes, drywall is 1/2 inch, studs are 16" O.C.
Old 01-22-04, 01:04 PM
Join Date: Feb 2003
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I am willing to bet this is on the exterior walls only. If so, then it is something called ghosting which results from thermal bridging. Much more likely on steel framed walls than wood framed.

Good summary at:

Old 01-24-04, 12:08 PM
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It is on the outside walls. And I live in the Northeast. I'm planning to repaint. It there anything I need to consider before hand?

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