August 08, 2020
A customer asked us, if it would be a good idea to pressure (jet, power) wash a roof prior to treating it with Benz Bio Cleanze.
That's a reasonable question.
You could jet wash a roof and then treat with Bio Cleanze.
But why would you?
High pressure jet/power washing decreases the lifespan of a surface by removing the protective surface layer. It's like exposing the surface to several years weathering in only a few minutes. Experiment on an area of reasonably fresh concrete and you will observe this for yourself.
Jet/pressure washing a roof would substantially increase the time a job takes, forcing you to increase the price to your customer and therefore inevitably losing some contracts because the price is too high.
Btw: The photo above is of Ben soft washing an artificial slate roof the correct way, treating it with Benz Bio Cleanze.
Q: "What would be the issues with using a jet washer with no chemicals added, aimed from a safe distance and using the blade nozzle down slope on interlocking concrete tiles to remove general soiling and vegetation, followed by an application of biocide to get under the tiles and kill off any remaining vegetation?"
We hope this clarifies the situation regarding the use of pressure / jet / power washing to clean a roof.
Ben, Leo & Fiona
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September 15, 2021
Many soft wash contractors can be unsure of the safest way to soft wash asbestos roofs. So in this post we lay out the best practices we've learned from running a soft washing business since 2013.
Click the link on this page to learn how to treat asbestos ...
September 08, 2021
Ben demonstrates how to scrape moss and lichen from natural slate roof tiles and treat the biofilm to kill all the growths on this natural slate roof.
Click the link on this page to watch the how-to video ...
September 02, 2021 2 Comments
When soft washing it's vitally important to protect surrounding building materials. e.g. lead flashing. And not to create "clean streaks" – from overspray and run-off – on surfaces that are not part of your contract.
Click the link on this page to watch how we achieve this when soft washing a chimney ...
It's a free resource for people wanting to learn about the soft washing industry, to expand an existing business, or build a new business.
Soft washing reduces, or even eliminates, the need to use high-pressure washing.
Instead, once the build up of algae, lichen, fungus, moss and mould – the root causes of properties looking "dirty" – has been treated, the natural "self-cleansing" of sun, rain and wind removes the surface residue through time.
By educating the cleaning trade and public about soft washing we are helping develop an industry that offers sustainable treatments to clean and maintain exterior hard surfaces.
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This saves you time, is a highly professional approach, and increases your chances of winning new contracts.