How to Softwash a Zinc Roof
A customer asked us about softwashing a zinc roof
His question was: We have to clean a roof that is clad in sheets made of zinc. We are planning to use Benz Lightning Cleanze and want to know if it's compatible with, and safe to use on, a zinc roof?
We replied: Zinc is one of the materials you need to be very careful with. Like lead it can discolour if you do not protect it by pre and post wetting with fresh water. Zinc can go hazy if not looked after in this manner.
We've never cleaned a zinc roof with Lightning Cleanze, so cannot comment from experience. However, at 10:1 Lightning Cleanze is not classified as corrosive to metal, so should be ok. But it may still tend to slightly oxidise the zinc, so be careful.
As always, first treat a test patch to check that your method works on the zinc roof you intend to softwash.
In general, we recommend using Benz Bio Cleanze ("Biocidal Wash") at 40-50:1.
Apply two treatments to the zinc roof if the colonisation is severe, which will enable the product to soak more deeply into the biological growths than is possible with a single treatment.
After treating the zinc roof with Bio Cleanze, leave it (do not rinse) and allow natural weathering complete the cleaning.
We hope you found this information helpful.
Ben, Leo & Fiona
Leave a comment
Comments will be approved before showing up. Please revisit this Trade Tips post to read our response.
Also in Benz Trade Tips
Huge thanks to all our customers for your loyalty in making Benz your softwash product supplier of choice. We appreciate the fact that so many of our trade customers come back to us week after week, month after month, year after year.
And by way of practical appreciation, we've decided to no longer pro-actively seek domestic customers for our products and will not knowingly sell products to the customers of our trade customers, i.e. those who want to play around with d.i.y.
Click the link on this page to continue reading ...
The good news is that there are ZERO customs duties to pay on Benz products.
Brexit has brought about many changes and challenges to business supply chains. And there's a lot of fear floating about regarding the excess taxes being levied on customers when ordering from EU-based companies.
So we want to reassure all our customers that we are able to continue supplying both our Irish and UK customers - with no additional duty, customs costs, or delays.
Click the link on this page to find out how we've achieved this ...
In this third video in our "Building a Softwashing Van" series, Ben waterproofs the van floor. To do this he has to complete some important preparatory tasks that must be done first to ensure there are no leaks further down the line.
Click the link on this page to watch the video ...