This surface cleaner can be used on rough or smooth concrete surfaces as well as any roofing surfaces. Basically, this surface cleaner can be used on any flat surface.
I am posting a link below to this product on our site:
18" GP Surface Cleaner
If you click on the specs tab for this product, you will see the owner's manual link to the right. If you open that up, you will be able to see some details about this product.