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

painting in the sun

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

Return to Forum

I plan on painting my roof this weekend. I'm using cryl-pro primer and Sherwin Williams Industrial Acrylic DTM. The temperature is supposed to be 70 and sunny both days. Will the sun be a problem and if so, how much of a problem? Thx.
Tom Burrell

4/15/2016
Share
Or copy this URL: https://www.metalroofing.com/spirit/comment/21131/find/
I would default back to what the materials manufacturer says. They are probably more concerned with ultimate surface temperature more than anything. https://protective.sherwin-williams.com/contact/ Eric Novotny
Eric Novotny
An informed customer is the Best Customer!

4/15/2016
Share
Or copy this URL: https://www.metalroofing.com/spirit/comment/21132/find/
I'll do that. The paint has a data sheet on www.paintdocs.com. Under the "Application" the temperature range is 40 degrees minimum and 120 degrees maximum. I don't think that the temperature of the roof will reach 120 degrees at 70 and sunny. But I should be able to avoid the highest temperatures by painting in the morning and early afternoon.
Tom Burrell

4/15/2016
Share
Or copy this URL: https://www.metalroofing.com/spirit/comment/21133/find/
Sounds good. Post up some pictures if you get it done. Eric Novotny
Eric Novotny
An informed customer is the Best Customer!

4/15/2016
Share
Or copy this URL: https://www.metalroofing.com/spirit/comment/21134/find/
I painted this weekend. Sunny 70 and 74 for Saturday and Sunday. The mistake I made was prepping for and attempting to use a sprayer. I didn't consider the need for backrolling and the sprayer clogged badly. Rolling was so much easier. If I had rolled from the beginning, everything would have gone as planned. The sprayer left a lot of puddling in between strokes. Those puddles of primer blistered some underneath the first top coat. I added a second top coat. As it is not visible to anyone unless they are up on the roof, I wonder can I leave a marble sized blisters alone or should I scrape, prime, and paint it? If I have to address them, can I wait a month or so before doing so? As far as painting in the direct sun, I wouldn't recommend it even at 70 degrees. The morning was OK. But by the early afternoon, the metal roof was too hot to touch. The paint was smoking a bit when I put it on (yikes!). But besides the blistering in a few spots, everything seems to be ok. What do you all think? If I'm going to have a problem down the road, I'd rather know now. Thanks,
Tom Burrell

4/19/2016
Share
Or copy this URL: https://www.metalroofing.com/spirit/comment/21135/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
©2023 Metal Roofing Alliance. All Rights Reserved. Privacy Policy Terms and Conditions