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Cleaning limestone pavers
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Posted by creatrix z7 VA (My Page) on Mon, Nov 28, 05 at 19:04
| One client of mine has a beautiful limestone terrace, patio and pool surround. Unfortunately, there are several spots that are stained from drips off of the copper roofing/gutters. There are also tracks from the lawnmower. I can get up the marks from leaves and algae with bleach, but it doesn't touch these other marks. Also, the new owners are remodeling, and there are small black spots on the terrace where some roof work was done. It's a slate roof, but these spots look suspiciously like tar.
Does anybody have any tips or techniques to pass along?
Thank you,
Susan |
Follow-Up Postings:
RE: Cleaning limestone pavers
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| a plain old pressure washer. if really stubborn try the Proseco line of stone cleaners.
pricey but top of the line products. |
RE: Cleaning limestone pavers
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| I second the power washing. We've cleaned limestone very successfully using a powerwasher. |
RE: Cleaning limestone pavers
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| Thanks you two. I'll recommend it to the client. I was afraid it would involve muric(?) acid or some type of sander/grinder. |
RE: Cleaning limestone pavers
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- Posted by laag z6CapeCod (My Page) on
Tue, Nov 29, 05 at 21:45
| Don't use acid on limestone. |
RE: Cleaning limestone pavers
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| I wasn't going to. It's one of those 'I know I don't know' situations. I do know limestone is pretty soft, as rocks go. So acid wouldn't be a good thing. |
RE: Cleaning limestone pavers
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- Posted by Hap_E z9 Berkeley CA (My Page) on
Thu, Dec 1, 05 at 23:01
| Actually the real problem with using acid, is Limestone is calcium based, so it is alkaline, so poring on acid and you get the old vinegar and baking soda volcano.... Messy and very destructive to the stone. A pressure washer and a stainless steel wire brush should take care of almost any stains. Good luck, Hap |
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