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: I Have An Existing Metal Roof and Have A Question

to venr or not-Ridge cap

Return to I Have An Existing Metal Roof and Have A Question

Return to Forum

I'd earlier posted a question about venting the ridge cap on an insulated 70' x 100' open machine shed. I was advised that venting was not necessary, and tried, but wasn't successful in adding the following comments: The insulation for the walls and roof of the building is a foil covered fiberglass blanket style, laid on top of the purlins and building support structure of the building, but under the steel roof sheeting panels. Pieces of the ridge cap sealing foam had been blown out by high winds, winds which also prevented an up close inspection. Before I posted the first question I'd been getting conflicting advice about venting the ridge cap, some saying that you MUST have a vented ridge cap to prevent condensation, other contractors (those selling an exterior coating process) were recommending to just cover the entire ridge cap as well as 6" on each side of the ridge cap. Today I was able to recover some of the foam material that Cuckler had used 30 yrs. ago and you cannot blow air through the foam that was used in the original construction. Therefore I'm considering using some cans of expanding foam ("Great Stuff", "Max Fill", etc.) to solve the wind & snow from entering through the gaps with out having to remove and reinstall the ridge cap....and the possible nightmare of screw alignment and/ or over sized replacement screws. But I realize if the expanding foam is used and that turns out to be a mistake, then it's all but impossible to remove that expanded foam once it has dried . Comments appreciated.
R R

3/14/2014
Share
Or copy this URL: https://www.metalroofing.com/spirit/comment/19350/find/
Is this a heated and air conditioned building? I assume not. You also say that it is "open" ... does that mean that air continually flows through it? This is sounding like a structure that would not need ventilation. You may wish to contact the Metal Building Manufacturers Association and pose these questions. Todd Miller
Todd Miller
Isaiah Industries, Inc.

3/14/2014
Share
Or copy this URL: https://www.metalroofing.com/spirit/comment/19351/find/

If you would like to reply to this thread, please log in. If you do not have an Ask the Experts forum user account, create one here.

  • 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