This topic has been closed by the administrator. Comments are no longer accepted.
I have a 10-year old home w/ 10/12 pitch roof. I have a vaulted ceiling with air-barrier, 16" fiberglass batts, plywood, felt paper (not sure of weight) and metal roofing.
My problem is in a bathroom w/ a vaulted ceiling I'm getting a drip coming out of the ventilation fan. Just started this year, but it's been a warm winter here. I suspect it's condensation related but I can't get into that space without tearing out drywall in the ceiling.
My question is if the metal roof is installed improperly. Should there be some sort of ventilation in this system? Hard to ventilate a vaulted ceiling, but something seems wrong.
John
Or copy this URL:
https://www.metalroofing.com/spirit/comment/1694/find/
Your vaulted ceiling construction seems to be adequate that you should not be generally concerned on condensation.
I do believe that you may be correct in your statements on the exhaust fan. Normally if it leaks from the inside of the pipe is condensation.
First I would disassemble the fan and check that the flapper stop is working freely. Next I would have the flashing checked around the vent pipe as snow or ice buildups could have caused it to move and cause a water opening.
As well if you have had excessive snow in your area, the exhaust could be plugged somewhat with snow retricting the flow and causing condensation. Have a look and hope this helps.
Or copy this URL:
https://www.metalroofing.com/spirit/comment/1695/find/
If you have baffles and soffit vents with no ridge vent you will get condensation.. With a metal roof it's probably best to not have air space at all because I'm not sure how you'd do a ridge vent.
as with my low pitched asphalt roof with air space, soffit vents and no ridge vent I get dripping and mold along the beam. I wish I had known before purchasing the house. The air space method is hotly debated. even though it's code in many places, i believe its nothing but trouble.
If I had the money I would tear it all out clean and replace all insulation with Icynene. no transfer of energy, no air, no condensation and no mold. wonderful stuff. The R-values are an issue with out of touch inspectors, they fail to understand that R value does not translate to this material as it does not transfer energy or air
3/7/2003
Or copy this URL: https://www.metalroofing.com/spirit/comment/1694/find/Dura-Loc Roofing Systems, Inc.
3/9/2003
Or copy this URL: https://www.metalroofing.com/spirit/comment/1695/find/11/22/2008
Or copy this URL: https://www.metalroofing.com/spirit/comment/1696/find/Isaiah Industries, Inc.
11/27/2008
Or copy this URL: https://www.metalroofing.com/spirit/comment/1697/find/