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: Roofing over existing roof

Joining existing asphalt roof to corrugated steel

Return to Roofing over existing roof

Return to Archive

Return to Forum

This topic has been closed by the administrator. Comments are no longer accepted.
I wish to re-roof an addition to my home using corrugated steel roofing panels. How do I join/seal the new roofing to the existing asphalt shingle roofing at the joint?
Guest User

8/11/2002
Share
Or copy this URL: https://www.metalroofing.com/spirit/comment/837/find/
It depends upon what angle they are joining from. In most cases, though, you'll want a flashing of like metal to go under the asphalt shingles and then extend on top of the corrugated. Todd Miller
Todd Miller
Isaiah Industries, Inc.

8/11/2002
Share
Or copy this URL: https://www.metalroofing.com/spirit/comment/838/find/
Thanks for the answer. It is a very slight angle. There is a slight pitch to the original roof and even less on the addition (it's almost flat). Won't flashing over corrugated (which will be sitting on top of 1" nailers) look funky?
Guest User

8/11/2002
Share
Or copy this URL: https://www.metalroofing.com/spirit/comment/839/find/
It sounds like your metal roof will be downhill from the standard shingles. In the case, a flashing like I described is the normal application. The flashing should have a closed hem folded on its exposed edge. This gives rigidity and helps with appearance. You might check with your metal roofing supplier to see if they have a metal or foam closure strip which can be used to fill in the "voids" underneath of the flashing. Todd Miller
Todd Miller
Isaiah Industries, Inc.

8/12/2002
Share
Or copy this URL: https://www.metalroofing.com/spirit/comment/840/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