How to soft wash wet dash wall render

October 17, 2020

Wet dash wall render

A customer emailed us asking how to soft wash wet dash wall render without using a pressure/jet washer or harsh chemicals. He was wondering if Benz Bio Cleanze alone would do the job. And if so at what dilution ratio and should it be brushed in?

He also asked if his customers want a same-day result would one treatment of Benz Lightning Cleanze do the job if applied at 4:1? Or would it require several treatments and rinses? 

 

Bio Cleanze and Lightning Cleanze will restore wet dash wall render

Option One:

Apply Bio Cleanze at 30:1 by spraying and then brushing-in to make sure the biofilm is saturated. The render will continue to become cleaner through time by the natural action of sun, wind and rain.

You will see a dramatic improvement within two weeks, sometimes only a few days, when the red staining should disappear. And you will see another improvement at around two months when some of the black will have gone.

From then on it's a slow but sure process of continual cleaning over the next 6-12 months, by which time the surface of wet dash render will be mostly restored.

Quick tips:

  1. Sometimes there may be some light residual staining, such as darker "shadow" patches where water has been running down the wall, caused by leaking gutters, run-off from window sills, etc.

    It may never be possible to remove these deeply ingrained stains completely but we've found that our customers do not consider them to be a problem and are always delighted with the results.

  2. Occasionally, if some particularly well-established lichen remains it may be necessary to give it a very gentle pressure/jet wash and/or another treatment.

Option Two:

Treat wet dash render by spraying with Lightning Cleanze at 5:1, followed by a second coat brushed in at 4:1.

Rinse well and then treat with Bio Cleanze at 50:1 to ensure all spores are dead, to give ongoing residual protection, and promote further natural deep cleaning over time.

Much of the black staining will be gone once the wet dash render has dried out and the red staining will be gone in 2-48 hours.

 

Option Three:

Treat with Bio Cleanze and return to the job after a period of time, say from 2 weeks to 4 months (the longer the better) and use Lighting Cleanze to remove the dead biofilm, which will achieve a faster result than leaving it to nature alone.

A very heavy, well-established biofilm is easier to remove with Lightning Cleanze once it's been treated with Bio Cleanze and left for a period of time. This will reduce the need for multiple applications of Lightning Cleanze to get the wet dash render fully clean on the same day.

With some forward planning this approach is the perfect preparation for painting previously unpainted wet dash render.

There are a number of helpful how-to pages on our website that answer all commonly asked questions about softwashing render.


Quick tips:

  1. Like most other surfaces that have been heavily colonised for many years, wet dash render may require multiple applications of Lightning Cleanze to get the render fully clean on the same day. It’s for this reason we have outlined the other methods.
  2. We usually treat any surrounding paths while we are treating wall render. This helps prevent spores recontaminating the wall by coming up from the paths. Our customers also appreciate our going the "extra mile" to provide them with the cleanest possible property and the best possible service.

Click here to learn about our free online softwash training


Follow us online:

Instagram
Facebook
LinkedIn
Website

Click here to visit our softwashing how-to YouTube channel

Benz soft washing how-to videos cover every aspect of soft washing. We show you how to soft wash domestic and commercial roofs, paths and drives, tarmac, concrete, walls, wall render (including KRend, Monocouche, Weber), wet pour safety surfaces, tennis courts, car parks, wood decking, fences, sheds and more ...

 
Our sincere wishes for a good life and a profitable business,

Ben, Leo & Fiona

 

Click here to explore the full range of Benz popular softwash cleaning products
Benz Softwash Bio Cleanze DDAC biocide & Benz Softwash Lightning Cleanze SH sodium hypochlorite biocide




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

How to avoid clean streaks on tarmac when soft washing wall render
How can you prevent "clean streaks" on a tarmac path when softwashing render?

October 10, 2020

When soft washing wall render the run-off can create "clean streaks" on an adjacent tarmac path or drive. In this video Ben shows you the simple, free and highly effective way to prevent clean streaks appearing on a tarmac path or drive.

Click the link on this page to watch the video ...

View full article →

The fastest and most profitable way to learn professional soft washing (video how-to)
The fastest and most profitable way to learn professional soft washing (video how-to)

September 02, 2020

 

How can you learn the practical how-to of soft washing quickly, easily and simply – without wasting several years "re-inventing the wheel" – learning through arduous trial and error – when you could have been up and running in a few weeks?

And earning well-deserved profits from a highly efficient soft washing business.

Then there is the thousands of pounds/euros that the unwary, knowing no better, can waste on expensive, and often unnecessary or inappropriate, softwash equipment. We're sure you don't want to be like them.


Click the link on this page to learn more ...

View full article →

Softwash Equipment 01 - Planning our new softwash van
Softwash Equipment 01 - Planning our new softwash van

August 25, 2020

In this ongoing soft washing video series Ben explains why and how he uses various types of softwash equipment.

What soft washing equipment you choose to build or purchase depends on several factors: for example the number of employees you have and the type of properties you soft wash.

Want to know more?

Click the link on this page to watch the video ...

View full article →