When softwashing a roof, should you scrape moss from the roof, or not? This is a question we are frequently asked. And there are varying points of view about the best way to softwash moss on a roof.
So we thought to clarify the situation in light of our experience.
Ben, who always goes to great lengths to explore all the possible options when softwashing a roof, has found this from his experience:
Remove large moss balls from the roof prior to softwashing, by using a Benz Professional Roof Moss Scraper. It’s best to remove all moss from low pitched roofs situated in sheltered or shady locations. Steep pitched roofs are more forgiving of less thorough scraping.
In general, spray-only treatment – with any softwash chemical – of roof moss is never completely satisfactory. Pre-scraping prior to treating with Benz Bio Cleanze has proved to be the most effective approach.
Ben also experimented with spraying moss with highly concentrated Lightning Cleanze.
This approach quickly turned the moss into a mush that somehow he had to remove.
The problem was that rain washed the mush into gutters, downpipes and drains. And therefore could potentially cause serious, hard to remove blockages.
Removing the mush by hand, prior to it entering the drainage system, turned out to be messy, difficult and highly unpleasant.
If you try this approach, remember that there could be some active sodium hypochlorite remaining in the mush, so stringent H&S precautions, including appropriate PPE, should be seriously considered and implemented.
Click here to learn about Benz Professional Roof Moss Scrapers – the professional way to remove moss from roofs.
We hope this information is helpful.
Ben, Leo & Fiona
Clear and easy to read – with loads of photographs showing the principles of softwashing in action. This fully illustrated paperback explains the practical how-to of softwashing in a straightforward way that's easy to understand.
The practical knowledge contained within its pages comes from several years trial and error experience.
Would you like to learn a simple step-by-step approach to softwashing?
Download the guide in seconds when you subscribe to the Benz Trade Tips blog. It shows you – step-by-step – how to easily, quickly, and accurately CREATE NEW SOFTWASH BUSINESS QUOTES. This saves you time, looks impressively professional to your customers, and increases your chances of getting that new contract.
© 2019 Benz Softwash Ltd.