Warranty & Maintenance Guide - Boral
the Boral Steel system, and the use of such will void the Boral Warranty. Mildew, algae and moss We recommend that a professional cleaning company be used, so that you avoid the dangers associated with walking on a roof. Many climates across the country are conducive to mildew, algae and moss growth on everything from glass, stucco, siding and driveways, to roofing products including stone coated steel panels.
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