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: Ventilation

carport roof

Return to Ventilation

Return to Archive

Return to Forum

This topic has been closed by the administrator. Comments are no longer accepted.
Building a carport/leanto with OSB roof sheating. The space below will be open to the elements because it will not be enclosed. Want to metal roof over the OSB. Do I need to "raise" the metal roof off the OSB and where and what type of vapor barrier is needed? The carport is being attached directly under an existing 2' overhang on my current garage. I live in northern Michigan and a rompt response would be appreciated since the snow is about to fly. thank you
Guest User

10/13/2002
Share
Or copy this URL: https://www.metalroofing.com/spirit/comment/1247/find/
Some carports are low pitch. If that is the case with yours, you need to be sure to choose a metal roof that is suitable for your roof pitch. An underlayment should be used on top of the OSB. This will protect the OSB from any condensation which might form under the metal roofing. Because this is an open situation, though, condensation should be minimal I believe. As far as whether to install a vented space under the roofing, that is up to you and what type of roofing product you choose. I really think you need to bring that question up to the manufacturer of the roofing you select. Most products are designed for good performance when installed directly over decking though. Todd Miller
Todd Miller
Isaiah Industries, Inc.

10/14/2002
Share
Or copy this URL: https://www.metalroofing.com/spirit/comment/1248/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