When cleaning Slate or Cedar you want to use a Soft Washing or Non Pressure method. Call Today (717) 578-5342 for a Free estimate demonstration.
See more here:
http://www.libertysoftwash.com/slate-roof-cleaning/
http://www.libertysoftwash.com/cedar-roof-cleaning/
See more here:
http://www.libertysoftwash.com/slate-roof-cleaning/
http://www.libertysoftwash.com/cedar-roof-cleaning/