External wall insulation cladding: Do you know the best softwash products to clean it?

November 25, 2021

External wall insulation: What are the best soft washing products to clean?

Often used to extend the life of deteriorating older properties, especially concrete buildings when the concrete begins to decay (“concrete cancer”) and make them warmer to live in, external wall insulation cladding is increasingly used in new-build construction.

What is external wall insulation cladding?

External wall insulation is a wall cladding system in which insulated boards are attached to the outside of a building and then coated with render or an acrylic coating.


How to clean external wall insulation cladding?

External wall insulation can be soft washed in the normal way with Benz Lightning Cleanze, Bio Cleanze, Tornado Cleanze or Perma Cleanze.

Click here to learn about Benz softwash products suitable for treating external wall insulation cladding

Quick tip: If the external wall insulation has been left for a long time without cleaning, then discolouration or “shadows” can remain. It's best practice to let your customers know about this possible outcome of a soft wash treatment before starting work.

Re-coating: STO is one of the leading brands of wall insulation and they suggest occasional re-coating to freshen the look of their cladding, or simply to change the colour. The cladding will require thorough soft washing prior to re-coating to ensure all colonisation by growths such as algae, etc has been killed. If not treated with a quality biocide prior to re-coating, the algae can regrow under the surface of the new coating.

We hope this information is helpful and sincerely wish you great success in your soft washing business,

Ben, Leo, Fiona, Stevie & Anthony


Click here to explore the full range of Benz 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 to read our response.

Also in Benz Trade Tips

Can soft washing chemicals damage climbing ropes?
Can soft washing chemicals damage climbing ropes?

May 17, 2022

Is it safe to use a sodium hypochlorite (sh) based product – such as Benz Lightning Cleanze softwash biocide – with ropes, or will it damage them?

Click the link on this page to find out ...

View full article →

What are the uses & advantages of Benz Tornado Cleanze for soft washing?
What are the soft washing uses & advantages of Tornado Cleanze?

May 11, 2022

Why should you use Benz Tornado Cleanze, a powerful softwash cleaning gel? What are its uses and advantages?

Click the link on this page to find out ...

View full article →

Shadow stain remaining after soft washing
When should you tell customers about shadow ("ghost") staining?

May 03, 2022

Shadow, or "ghost" staining may sometimes remain after soft washing. Customers can misinterpret this as poor workmanship. But fortunately there's a simple solution that keeps everyone happy.

Click the link on this page to find out what it is ...

View full article →