Join the MRA | Member Login
Find a Professional
  • Why Metal Roofing?
    • About MRA
    • Benefits of Metal Roofing
    • Compare Roofing Materials
    • Homeowner Testimonials
    • Inspiring Metal Roofing Projects
  • Homeowner Resources
    • Metal Roofing Buyers Guide
    • Resilient Housing Guide
    • Metal Roof Sustainability Guide
    • Above All Else You Need a New Roof eBook
    • MRA News
    • Member Provided Resources
    • 3rd Party Articles
    • Frequently Asked Questions
    • Preparing for Hurricane Season
  • Gallery
  • Visualizer
  • Ask The Experts
    • Energy Efficiency
    • Existing Metal Roof Questions
    • Installation
    • Is A Metal Roof Right For My House
    • Metal Roofing Benefits
    • Product Selection
    • Other
    • Archive
  • Find a Professional
Join the MRA Member Login
Sign Up Log In Add New Topic

TOPIC: I Have An Existing Metal Roof and Have A Question

Roof Tin Canning

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

Return to Forum

Please see attached photos, what could be causing this? roofer pointing at supplier and supplier pointing at roofer.
Paul McElroy

6/16/2014
Share
Or copy this URL: https://www.metalroofing.com/spirit/comment/19592/find/
It could be both of them, the plywood deck could also be a factor. The steel supplier could have caused it, or the coater or the slitter. There are many causes of oilcanning. The stance of most manufacturers is that oilcanning is not a cause for rejection. That being said, there are things that could have been done to reduce the visual impact; such as stiffening ribs in the flat area of the panel, embossing of the metal. Precision leveling the metal prior to forming. Shimming the deck if need be. Creating a crown in the panel using backer rod. Oilcanning issues are in the eyes of the beholder. We had one customer that said there was not enough oilcanning. Feel free to post again or call me at 610-395-8445 Dick Bus
Dick Bus

6/16/2014
Share
Or copy this URL: https://www.metalroofing.com/spirit/comment/19593/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 the MRA
    • Member Companies
    • Leadership
    • MRA News
  • For Professionals
    • Join the MRA
    • Industry Resources
    • Upcoming Events
  • Contact
  • Subscribe
©2018 Metal Roofing Alliance. All Rights Reserved. Privacy Policy Terms and Conditions