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jarminio
Mildew, Peeling Paint and Tape on Garage Ceiling
jarminio

36-year-old house in North Atlanta, GA, have lived here since 1997. Drywall on ceiling and walls in attached garage, garage floor on slab, unheated space. No laundry or utilities in the garage. No living space above, just a small attic. There are linear soffit vents and they are not blocked. There is a louvered 'window' vent on the side of the garage below the roof peak. We do not have insulation in this space.

No problems in garage for 12 years until 2009, had roof shingles replaced and ridge vent was installed. In late 2010, paint and seam tape started peeling and then a large chunk of ceiling drywall fell into the garage. Roofing company inspected and said there was no leak in the attic area. A contractor repaired hole and put additional nails along the other drywall sheets, re-taped, re-mudded, sanded and painted.

In 2015, paint and seam tape started peeling again in several spots of the garage ceiling, not just one area, and now there is a line of black mildew along one of the drywall joints toward the back of the garage, on the downward back slope from the peak. Roofing company out again, no leaks. They cannot/will not explain why we have this problem just since the ridge vent was installed. They just say it's not their problem.

I'm too old and DEFINITELY not a DIY-er to get up in that attic and look around myself. Before we tear out the ceiling and start over, any ideas what could be causing this and how to fix it? And what kind of company do I call to address it? Thank you!

dj1
Re: Mildew, Peeling Paint and Tape on Garage Ceiling
dj1

Have somebody new go up in the attic and check for evidence of a leak. Stain, dry rot - if you have them - these are easy to spot.

You states that about a year after you replaced the shingles and had a ridge vent installed, your troubles began. I think you need an independent assessment in the attic, because I suspect that you do have a leak.

jarminio
Re: Mildew, Peeling Paint and Tape on Garage Ceiling
jarminio
dj1 wrote:

Have somebody new go up in the attic and check for evidence of a leak. Stain, dry rot - if you have them - these are easy to spot... I think you need an independent assessment in the attic, because I suspect that you do have a leak.

Thanks, dj1. So another roofing company? Or insulation company? or just general contractor?

dj1
Re: Mildew, Peeling Paint and Tape on Garage Ceiling
dj1

Any experienced tradesman, could be any of the above or even a home inspector, could give you a fair estimate of what you have. Heck, these days the guy can take pictures of what he sees up there, then get down and show it to you.

When water hits rafters, joists, studs, drywall - it leaves stains. A lingering leak leaves even more that just stains.

It may or may not cost you some "inspection fee", but if it does, it's worth it.

Let us know what you found out.

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