I have a two car garage and I turned one side into a guest house but the problem I'm having is the walls are very wet behind the dry wall and insulation. This happened before I tore it out and replaced it but it happened again. I have two attic vents, one on each side of the building, approximately 2 to 3 feet from the peak of the roof. I have no roof vents. Sometimes it was so moist that small amounts of water ran on the floor from wall being so wet.
Do you have any suggestions that might help fix the problem?
If I would guess at this issue from what I've seen in this msg, I would be leaning towards your roof attic vent may be letting in wind driving rain. Leading to water building up in your roof and spilling into your drywall an leaking into your floor.
The handyman gabe and sons
I have heard of people having this problem before and a cause is insulation stuffed down over the outside wall cutting off most air flow from the soffit into the attic, any moisture or heat leaving the house would have no air movement to dissipate. I would check to make sure your insulation is only over the interior portion of the ceiling not stuffed down in the soffit, pull all the insulation back and install foam vents down into your soffit then install new insulation.
Hope this helps and would be interested to know if this is the problem, cheers!!
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