For Professionals | Member Login
Find a Professional
  • About Us
    • Member Companies
    • Leadership
    • MRA News
    • Homeowner Testimonials
    • Contact the MRA
    • For Professionals
  • Why Metal Roofing?
    • Benefits and Performance of Metal Roofing
    • Compare Roofing Materials
  • Homeowner Resources
    • Metal Roofing Buyers Guide
    • Metal Resilient Guide
    • Metal Roof Sustainability Guide
    • Above All Else You Need a New Roof eBook
    • Today’s Homeowner Partnership
    • Metal Roofing Visualizer
    • MRA University
    • Member Provided Resources
    • Frequently Asked Questions
    • Inspirational Metal Roofing Projects
    • Upcoming Events
  • Gallery
  • Ask The Experts
    • Energy Efficiency
    • I Have An Existing Metal Roof and Have A Question
    • Installation
    • Is A Metal Roof Right For My House
    • Metal Roofing Benefits
    • Product Selection
    • Other
    • Archive
  • Find a Professional
For Professionals Member Login
Sign Up Log In Add New Topic

TOPIC: Condensation Issues

condensation

Return to Condensation Issues

Return to Archive

Return to Forum

This topic has been closed by the administrator. Comments are no longer accepted.
I live on a canal in New Jersey, fairly humid area. The back section of the house(40x12) only has a one foot crawl space with r19 hard foam insulation. The ceiling is old ship lap barn boards , so warm air still escapes. There is some condensation dripping through the sheathing at a seam and an screw hole in the middle portion of the roof. There is no other evidence of condensation in any other portions of the roof. This middle room is also at the top of the stairs and across from the bathroom, excess heat and moisture. Would spray foam insulation on the bottom of the sheathing act as a good vapor barrier? I am guessing that the warm air is sneaking up through those gaps and holes. Thanks for your help.
Guest User

1/17/2007
Share
Or copy this URL: https://www.metalroofing.com/spirit/comment/9126/find/
I think you are on the right track.
Allan Reid
Dura-Loc Roofing Systems, Inc.

1/19/2007
Share
Or copy this URL: https://www.metalroofing.com/spirit/comment/9127/find/
would pink baffle on the bottom of the sheathing and a plastic vapor barrior on the ceiling work. then blow loose insulation into the remaining area. it would keep moisture to a minimum and give approx r25 between the ceiling and the baffle. our access is limited. the spray foam would be very difficult. do you think that this would work?
Guest User

1/24/2007
Share
Or copy this URL: https://www.metalroofing.com/spirit/comment/9128/find/
Your biggest problem is heat loss which then condensates on the bottom of the metal. More insulation helps a but you truly need an interior air barrier and exterior underlayment. Foam will cure both.
Allan Reid
Dura-Loc Roofing Systems, Inc.

1/25/2007
Share
Or copy this URL: https://www.metalroofing.com/spirit/comment/9129/find/
I found a couple of spots where the new roof meets the old roof and there is a gap in the sheating. I can reach up in the crawl space and touch the metal roofing. If I cut 2" thick stiff polyfoam insulation and filled the area; then sealed the seams with spray foam' would that help. Just below these areas are the only places That I am getting condensation dripping. Thanks for your help.
Guest User

3/6/2007
Share
Or copy this URL: https://www.metalroofing.com/spirit/comment/9130/find/
If you can seal off the heat and moisture it may work, yes. Todd Miller
Todd Miller
Isaiah Industries, Inc.

3/17/2007
Share
Or copy this URL: https://www.metalroofing.com/spirit/comment/9131/find/
  • About Us
    • Member Companies
    • Leadership
    • MRA News
    • Homeowner Testimonials
    • Contact the MRA
    • For Professionals
    • Subscribe
  • Why Metal Roofing?
    • Benefits and Performance of Metal Roofing
    • Compare Roofing Materials
  • Homeowner Resources
    • Metal Roofing Buyers Guide
    • Metal Resilient Guide
    • Metal Roof Sustainability Guide
    • Above All Else You Need a New Roof eBook
    • Today’s Homeowner Partnership
    • Metal Roofing Visualizer
    • MRA University
    • Member Provided Resources
    • Frequently Asked Questions
    • Inspirational Metal Roofing Projects
  • Gallery
  • Ask The Experts
    • Energy Efficiency
    • I Have An Existing Metal Roof and Have A Question
    • Metal Roofing Benefits
    • Product Selection
    • Other
    • Archive
©2018 Metal Roofing Alliance. All Rights Reserved. Privacy Policy Terms and Conditions