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Post Info TOPIC: White decorative blocks


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White decorative blocks
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What is the best way to clean black mold from white decorative porous blocks. Can you hit it with SH and wash with a power sprayer, or is there a more preferred method of cleaning this block. The roof is a light color and after it is cleaned the block will definitely be an eye sore

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I would hit it either with SH or OneRestore by eachochem. SH is cheaper, try that 1st. rinse with necessary pressure to remove residual.

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Ryan Freidline
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888.867.7615

Roof Cleaning Piedmont Northern Virginia

Fauquier, Loudoun, Prince
William, Arlington, Alexandria, Fairfax,
Chantilly, Annandale, Fredericksburg, Culpeper, Rappahannock, Woodbridge,



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some blocks have Iron ore in them and they will rust when hit with sh.. do a test area. 




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Do you need pressure to wash off Sh or will hose pressure work to rinse

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