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Belzona® Seals Switch Room Roof Penetrations



Power (POWR)



Roof Problem Areas (RPA)


Customer Location:

Power Station, Teesside, UK


Application Date:



Application Situation:

Switch room roof vents.



A series of vents and AC units had been positioned on roofs over the switch rooms. Cladding panels and sealant had been used in attempts to weatherproof the penetrations but this had proved ineffective. In addition, some of the fabrication joints for the vents were also failing, which allowed even more water in. After an incident which had forced sections of the power plant to shut down, Belzona were approached for a solution that could rapidly be installed to seal the complicated details and roof profiles.



Belzona 3111 (Flexible Membrane)



Galvanised steel and plastic coated steel


Application Method:

Applications were carried out in accordance with Belzona Know-How System Leaflets RPA-01, RPA-6, and RPA-8, to address the different situations.


Belzona Facts:

The Belzona roofing membranes are cold applied and can be used to seal even the most complex of geometries with a simple brush application. With so much at stake, the client was desperate for a solution, and so was delighted to find the Belzona solution could be delivered in a single day. A series of vents and AC units were sealed quickly to prevent further water damage and disruption to the facilities. This localised application consumed minimal materials and proved very cost effective.


Photographs Description

  1. Switch room vent, cladding detail
  2. Failed fabrication seam
  3. Seams and cladding sealed with Belzona 3111
  4. Completed application
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