Recommended Roofing Material

I have a 6,000 sq ft flat roof commercial building in the San Francisco Bay Area. With the moderate climate and flat roof, what would you recommend for material?

It currently has an old tar and gravel roof. We have been quoted TPO, Duro-Last and Tar and Gravel and the price ranges are all over the place.

Hi Karen,

I know it’s a bit of old post. Did you ever resolve this? I’m more than happy to help