Mackridge SV

Mackridge SV ridge ventilators in-situ at a project in Brimingham


A competitively priced, natural exhaust roof ventilator specifically designed to fit along a building ridgeline. Units can be sited along the ridge as single units or joined together to form continuous runs.

A view on the internal bird guard inside the Mackridge SV

A view on the internal bird guard inside the Mackridge SV

Design and Installation Flexibility

With such a wide range of throat opening widths and lengths, together with the option of employing either individual units or continuous runs, design and installation options are endless.


Available in a wide range of standard throat widths from 152mm to 305mm, units are made-to-measure in lengths and configurations to suit your requirements.


Aluminium alloy units weigh 18-70kg
Plastisol steel units weigh 28-104kg

Materials & Finishes

The most commonly used materials are:-

  • Mill finish aluminium
  • Plastisol coated steel
  • PVDf coated steel

Other materials and finishes include:- Aluminium with a polyester powder paint finish (including Syntha Pulvin) with a wide choice of colours and gloss levels.

Steel units manufactured using galvanised steel in mill finish or with a polyester powder paint finish.

Pre-coated units manufactured using a wide range of coated aluminium and steel substrates including HPS200 & Prisma.


  • Joining kits to form continuous runs
  • Bird guards
  • Insect mesh
  • Internal closure trim flashings
  • Security guards

Functional option

  • Permanently venting.


Maintenance should be carried out in accordance with McKenzie-Martin’s recommendations.

System Design & Product Selection

Assistance with scheme design and product selection is offered by our experienced technical team.



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