I’ve got a modified bitumen roof, black, and want to know if there’s a good roof paint(white) anyone can recommend?
It’s for a flat roof. My goal is to keep the heat down/ save cooling costs. Thanks.
I’ve got a modified bitumen roof, black, and want to know if there’s a good roof paint(white) anyone can recommend?
It’s for a flat roof. My goal is to keep the heat down/ save cooling costs. Thanks.
When deck posts exceed what the prescriptive code tables allow, it's time to consult a structural engineer for post sizing and possible bracing.
"I have learned so much thanks to the searchable articles on the FHB website. I can confidently say that I expect to be a life-long subscriber." - M.K.
Get home building tips, offers, and expert advice in your inbox
Dig into cutting-edge approaches and decades of proven solutions with total access to our experts and tradespeople.
Start Free Trial NowGet instant access to the latest developments in green building, research, and reports from the field.
Start Free Trial NowDig into cutting-edge approaches and decades of proven solutions with total access to our experts and tradespeople.
Start Free Trial NowGet instant access to the latest developments in green building, research, and reports from the field.
Start Free Trial Now© 2025 Active Interest Media. All rights reserved.
Fine Homebuilding receives a commission for items purchased through links on this site, including Amazon Associates and other affiliate advertising programs.
Get home building tips, offers, and expert advice in your inbox
Become a member and get instant access to thousands of videos, how-tos, tool reviews, and design features.
Start Your Free TrialGet complete site access to expert advice, how-to videos, Code Check, and more, plus the print magazine.
Already a member? Log in
We use cookies, pixels, script and other tracking technologies to analyze and improve our service, to improve and personalize content, and for advertising to you. We also share information about your use of our site with third-party social media, advertising and analytics partners. You can view our Privacy Policy here and our Terms of Use here.
Replies
I've seen, but never used, a fibered bituminous paint on material that has aluminum flakes in it--it is aluminum colored and that should reflect heat as weel as white. It's available at home centers--usually used on "mobile home" roofs.
The fibred al paint is made for metal roofs and has powerful etching VOCs that could eat some life away from the modified surface. The fibres would be un-necessary, unless he had gapping cracks and bad seams to fill. If he wanted to chance the amt of VOCs there is a unfibred that would go much further per gallon.I believe they recommend a latex typoe rather than oil based though, to avoid any possibility of hurting the roof membrane
Welcome to the Taunton University of Knowledge FHB Campus at Breaktime. where ... Excellence is its own reward!
Any exterior paint should work on that.
Welcome to the
Taunton University of Knowledge FHB Campus at Breaktime.
where ...
Excellence is its own reward!
Last summer I put a coat of Henry's aluminum glop on my BUR. I don't think the boxes carry it, I got it from a roofing supply place. About $600+ IIRC for enough to do 16 squares. It's good for reflecting heat, and it fills small cracks and holes. It's oil based, and bonds well with bitumenous stuff. Brushes, rollers, clothing, etc used for the job should be regarded as expendable.
It got us thru the second wettest winter on record without leaking, and is doing well for us in the current heat wave here in LA. My guess is it might extend the life of the old roof 5 years or more. Of course, a lot depends on your climate.
-- J.S.
Thanks to John, Piffin and all.
My roof is new, 1 year old, no leaks. It's 99 degrees today, probably much hotter on that black roof, which is why I want to paint it white not aluminum. I understand white reflects heat better than a silver color. I'll look for an exterior latex.
I found one of the buckets. What I used was Henry's #229. It says it's water based, though I sure don't remember it smelling or cleaning up like that. You might check their web site, and also http://www.conservationtechnology.com. RCT has a white paint-on roof material. Ordinary exterior paint might not hold up all that well since a flat roof gets maximum sunlight and rain impact.
-- J.S.