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Belzona® Repairs And Protects Leaking Balcony



Buildings & Structures (BSTR)



Roof Problem Areas (RPA)


Customer Location:

County Council, UK


Application Date:

November 2010


Application Situation:

90m long concrete balcony giving access to flats over shop units.



Over the years the cantilevered balcony had dropped allowing a gap to form between wall and the balcony itself. There was then water ingress through the gap into the shops below.



Belzona 4111 (Magma-Quartz)

Belzona 3131 (WG Membrane)

Belzona 3111 (Flexible Membrane)





Application Method:

The application was carried out in accordance with Belzona Know-How System Leaflets RPA-2 & RPA-8. Belzona 4111 was used to rebuild damaged masonry and then the entire area was sealed with a fully reinforced Belzona 3111 system before applying a further coat of Belzona 3131 blended with Belzona 9231 aggregate to create a hard wearing non-slip surface. 


Belzona Facts:

Belzona were able to meet the specific requirements of the client. Due to the logistics of the long narrow balcony and to provide access to the tenants, duckboards were used for them to walk on.


Photographs Description

  1. Balcony before work commenced 
  2. During the application 
  3. Completed application 
  4. Further view of the completed application
Case study pic one


 Case study pic two


 Case study pic three


 Case study pic four


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