KHIA header Know-How in Action


Belzona® Repairs And Protects Roof From Leaks



Commercial Facilities (COMM)



Roof Problem Areas (RPA)


Customer Location:



Application Date:

April 2010


Application Situation:

Property Management Company/Owner was looking for a cost-effective solution to seal several old, leaking roofs for his property in order to buy time for budgeting for a complete overhaul.



All five roofs of this commercial business park had numerous water leaks and interior water damage. 



Belzona 3111 (Flexible Membrane)

Belzona 3921 (GSC Surface Conditioner)

Belzona 9311 (Reinforcing Sheet)





Application Method:

The rock ballast was moved to expose all joints, seams, penetrations, parapets and patches. These known problem areas then received the fully reinforced Belzona 3111 system remediation. The application was carried out in accordance with Belzona Know-How System Leaflet RPA-1.


Belzona Facts:

Previous patching had proven ineffective and the roofing consultant declared the roof beyond its usable life and called for a complete replacement. Treating just the problem areas alleviated all of the leaks at a substantial savings over tear-off and replacement. The tax implications for this “maintenance” procedure proved just as beneficial.


Photographs Description

  1. Overview of the roof
  2. Areas to be treated
  3. Belzona 3111 applied to designated areas, including possible penetrations throughout
  4. Completed applications, including the seams of the entire perimeter
Case study pic one


  Case study pic two


  Case study pic three


  Case study pic four


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