Case Studies

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Render Stain Removal - Render Steam Cleaning

After hearing about our patented technology, the property services manager from a housing association client came to us at Spectrum to discuss cleaning badly stained render. As the render was so heavily contaminated, the housing property team had concluded that it was past the point of cleaning and painting was the only solution. We inspected the site and proved with a sample test that our expert team and patented processes could deep clean it and avoid the cost of painting.

Combining our specialist cleaning knowledge, highly experienced team, and our patented P.A.S.T. method, we removed deep and extensive stains on this render property.

The Project

Render Stain Removal

Render Steam Cleaning

  • Location:Reading
  • Client:Housing Association
  • Project Duration:3 Weeks
  • Substrate:Render
  • Access Method:3D Printed Equipment

The Site

A full survey was conducted to confirm that there were no other sources of staining than the three that had been identified during the original sample survey. 

The Logistics

To access the full surface of the facade we used our patented 3D printed equipment which can be operated safely from ground level. This specially designed and printed arm mechanism allows us to access hard to reach areas without having to send operatives up in a cherry picker. Safety is always our number one priority for our operatives and in this case also for the housing association’s residents. To ensure safety, manage expectations and keep everyone informed, the area was cordoned off and notices given to all residents about what was happening and when.

+plus point

Through the extremely heated steam applied in our P.A.S.T cleaning system, our team removed all signs of carbon monoxide stains on this property!

Render Stain Removal
Case Study

Innovative Render Cleaning

Following the survey, we were able to select and apply the correct processes. It’s the combination of experience and bespoke render cleaning equipment that allows us to succeed in extreme situations. In this case, the team applied CPD knowledge from maintaining modern render and we followed our patented P.A.S.T. technique which has 4 clear stages: 
P – Preparing the render and the area.
A – Applying the biocide to the render.
S – Steam-cleaning the render at 150 degrees celsius.
T – Targeted treatment to any stains remaining on the surface.

When these four stages are used in combination, they are exceptionally effective at removing stains and cleaning modern render. The DOFF steam cleaning system heats water to 150 degrees and was essential to remove the carbon. Biocide was also applied to kill the algae prior to cleaning. To maintain the quality of the result we also applied K-rend to the render. For this housing façade, we had to repeat the P.A.S.T. process three times to achieve the optimum result. 

+plus point
Our initial survey allows our team of trained technicians to identify the substrate and the best cleaning system for the respective substrate.

Transforming Properties

When we take a brief from a client, we will always examine all the options with the view to minimise cost and disruption while at the same time ensuring the possible best result. For this housing association client, this meant a deep clean of a building façade that left the building looking like it had been newly painted. The result for our housing association client in Reading was a completely fresh look within three weeks of the team arriving on site!

Back to Case Studies

Read Our Render Cleaning Case Studies

Complex Render Cleaning in Essex

18th June 2020

+plus pointThe whole building restored with no paint required.

Scaffold-Free Render Cleaning - No Painting Required

18th June 2020

+plus pointAll rust and lead staining was removed with out PAST process.

Render Stain Removal

21st December 2020

+plus pointThrough the extremely heated steam applied in our P.A.S.T cleaning system, our team removed all signs of carbon monoxide stains on this property!

How We Cleaned 100 Rendered Elevations In Just Two Months!

18th June 2020

+plus pointWe saved our client thousands of pounds in access costs.

How We Cleaned 15 Rendered Blocks In Kent In Under 5 Weeks

18th June 2020

+plus pointOur self contained vans carried 1000 litres of purified water to site each day.

Rope Access Render Cleaning In Clapham 600 Man Hours And A Clean Facade Later!

18th June 2020

+plus point20% cleaned with custom 3D printed cleaning equipment.

Render Facade Restoration

1st July 2021

+plus pointAbseiling is a cost-effective method when it comes to façade cleaning

The Impossible Render Clean

18th June 2020

+plus pointThe Housing Association saved £120K on access costs over 3 decorating cycles.

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