Slate Roof Cleaning Chemicals

Debris and moss buildup hold moisture in the slates that can split them during winter freezes.

Slate roof cleaning chemicals.

When cleaning a slate roof don t use chemicals like ammonia or chlorine bleach. Both artificial slates and natural slates have to deal with moss and pollution in the long run. Roof cleaning by using the correct chemicals. Unlike other roof cleaning products spray forget does not contain any bleach.

It is a proven chemical that is non corrosive and biodegradable. Our customer told me i ve tried all the specialty products over the years and have little to no evidence they work any better we ve also heard that chlorine bleach or copper solutions don t seem to have any affect. Small amounts of dirt are usually not a problem as opposed to when large parts of the roof are covered with moss. Regular roof cleaning is critical for your roof as slate is easy to cleave and water absorbent.

One of the most gentle yet effective ways to remove roof moss and clean the roof is by way of scraping. Bleach or sodium hydroxide lye which can destroy all perimeter vegetation burn your skin and eyes and potentially degrade your asphalt shingle performance. Buildup of moss and debris on slate roofs hold moisture in the slates that can split them during winter. A normal 9 trowel is suitable if your roofing contractor chooses a dry day any moss will flake off the roof much easier and there won t be any scratch marks on the tiles.

While you might be tempted to reach for a strong chemical or a pressure washer it s better to leave them behind and give your slate roof a little tender loving care. The goal when cleaning a slate roof is to soften and loosen the undesirable buildup.