I have an older mobile home in Wisconsin that I use as a weekend get away. It has a flat metal roof on it. Last fall I tore down the ceiling, vapor barrier and insulation in a bedroom that had previously had water damage but no longer leaked. I added unfaced R-13 insulation, a plastic water vapor and a plywood ceiling. I then shut the trailer down for the winter. When I opened it up this spring the plywood was covered with mold, the plastic water vapor had trapped water in it and some of the insulation was soaked so I tore down everything again. It poured that day and there was not a drop of water inside so I'm still confident there are no leaks. The next day it was cold so I turned on the furnace and the room turned into a rain forest with all the condensation on the inside of the metal roof so I feel that is what happened over the winter. There is no ventilation in the roof or sides. There are no mobile repair persons in the area so I called an insulation company. They want to block off the attic with plywood from other rooms in the home and then spray 3 inches of insulation for about $500. He swears that will fix the problem and I don't need any ventilation to prevent condensation. Anyone have an opinion whether this will work or any other suggestions? I don't have a clue what else to do.
Thanks for you help.
Jerry
Condesation in Ceiling
Moderators: Greg, Mark, mhrAJ333, JD
Iv been having the same problem for a few years.Had to tear out the hallway ceiling and reinsulated the attic.I have a cathedral ceiling in the living room so theres no space between ceiling and roof.I put a vent on the one end on the outside for the back half of trailer and fixing to put another on the front half of ceiling.I think it helped.I seen a difference last winter.There was still a little condensation but not as much.When I put the other vent in it mite take care of it.I also going cut a door in the ceiling so I can have acess and see the metal from the inside. Iv even thought about putting a dehumidifier up there sometimes. Work in process I reckon.
-
- Similar Topics
- Replies
- Views
- Last post
-
-
Ceiling planks over existing panels?
by simpleword » Wed May 31, 2017 1:41 pm » in Mobile Home Repair - 1 Replies
- 29847 Views
-
Last post by Greg
Wed May 31, 2017 7:19 pm
-
-
- 1 Replies
- 11548 Views
-
Last post by Greg
Sun Jun 04, 2017 1:01 pm
-
- 2 Replies
- 18895 Views
-
Last post by Joe Freeman
Tue Aug 01, 2017 10:13 am
-
-
A/C and heat comes from the ceiling vents. Are the existing floor vents necessary?
by NanaMary » Tue Nov 21, 2017 12:35 pm » in All Other HVAC Questions - 2 Replies
- 52899 Views
-
Last post by NanaMary
Fri Nov 24, 2017 11:14 am
-
-
- 1 Replies
- 8560 Views
-
Last post by Greg
Fri Jan 26, 2018 7:55 pm