benbern125
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- Mar 1, 2011
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I am admittedly new to the forum and I've read other forums on condensing at the ceiling interface, but nothing I felt that applied to my situation. Here we go:
I've recently inherited my mother's house and ripped down all of the ceiling tiles and drywall to remodel. The home has cathedral ceilings (in other words, the outer tar and gravel roof, tongue and groove wood planks, a 2x10, and tongue and groove on the inside ,in that order). The old insulation in the roof was worn down and settled beyond salvage, so in the course of electrical we cut misc. holes in the tongue and groove to pull out the old insulation and install new R-19 24" kraft faced batts.
Let me also mention that I've also removed the A/C unit and heater
We were so excited so finally finish electrical! I don't have the time to do the drywall so I have contracted it out.
Well, when they were installing the drywall they called me over to tell me some of the insulation was wet. I was curious as to if it was a roof leak or condensation, so I went on the roof with a hose and soaked the entire area at all different angles for an hour. No leak. It rained the next day, no leak. So I told them to button up the roof and move on, that it must just be a small amount of condensation.
The contractors call me today and tell me that the beams (three 2x10s that runs horizontally throughout the house that the rafter 2x10s are nailed to) were wet and it was making the drywall wet. I went on the roof and checked and some of the tar and gravel was loose, but not enough to soak end to end of the house (~75ft). I've attached a picture of one of the wet spots, but there are at least 5 of these spots in different places on the ridge of the roof in different rooms spanning the entire middle beams of the house.
These are my thoughts:
1, There are soffit vents but no ridge vent - doesn't this counteract the ideas of either venting the attic (would need a ridge vent) or unvented attic (with the soffit vents)?
2. I'm thinking if there were any roof leak we would have noticed that amount of water when the drywall was down (for about 3 months while we were doing the electrical).
3. If it is in fact condensation, will an a/c dehumidifying the air change this problem?
Any help is appreciated!! i have pictures of the wet spots if this would help.
By the way, I am in South Louisiana.
I've recently inherited my mother's house and ripped down all of the ceiling tiles and drywall to remodel. The home has cathedral ceilings (in other words, the outer tar and gravel roof, tongue and groove wood planks, a 2x10, and tongue and groove on the inside ,in that order). The old insulation in the roof was worn down and settled beyond salvage, so in the course of electrical we cut misc. holes in the tongue and groove to pull out the old insulation and install new R-19 24" kraft faced batts.
Let me also mention that I've also removed the A/C unit and heater
We were so excited so finally finish electrical! I don't have the time to do the drywall so I have contracted it out.
Well, when they were installing the drywall they called me over to tell me some of the insulation was wet. I was curious as to if it was a roof leak or condensation, so I went on the roof with a hose and soaked the entire area at all different angles for an hour. No leak. It rained the next day, no leak. So I told them to button up the roof and move on, that it must just be a small amount of condensation.
The contractors call me today and tell me that the beams (three 2x10s that runs horizontally throughout the house that the rafter 2x10s are nailed to) were wet and it was making the drywall wet. I went on the roof and checked and some of the tar and gravel was loose, but not enough to soak end to end of the house (~75ft). I've attached a picture of one of the wet spots, but there are at least 5 of these spots in different places on the ridge of the roof in different rooms spanning the entire middle beams of the house.
These are my thoughts:
1, There are soffit vents but no ridge vent - doesn't this counteract the ideas of either venting the attic (would need a ridge vent) or unvented attic (with the soffit vents)?
2. I'm thinking if there were any roof leak we would have noticed that amount of water when the drywall was down (for about 3 months while we were doing the electrical).
3. If it is in fact condensation, will an a/c dehumidifying the air change this problem?
Any help is appreciated!! i have pictures of the wet spots if this would help.
By the way, I am in South Louisiana.