Square Air Vent Covers

Square air vent covers and grilles ensure the adequate flow of air through buildings to improve ventilation to reduce the likelihood of dampness and mould. Our range of square intumescent air vent covers are a vital part of any passive fire protection system. Providing resistance against fire and smoke for up to 60 minutes when installed correctly.

At FireSealsDirect, we stock a range of square air vent covers and grilles from leading brands including Lorient and Pyroplex, all designed to be installed on ducts, internal walls and FD30/FD60 fire doors. We stock a range of sizes and can also accommodate bespoke sizes. Our air transfer grilles can be combined with cover grilles for extra protection for up to 120 minutes.

Browse our range of square ventilation grilles and order before 4pm for next-day delivery. If you have any queries about our product range or would like to request a bespoke order, get in touch by using the live chat or call us on 029 2085 7959.

What is the purpose of a square intumescent air vent?

Intumescent grilles are made from materials that expand when exposed to heat. This expansion closes the gaps within the grille to block fire and smoke from spreading. When installed correctly, intumescent grilles are designed to provide up to 60 minutes of resistance against fire and smoke. Square air vent covers may be used with intumescent grilles to achieve a more aesthetically pleasing finish or may have been specified for use by a passive fire protection specialist.

How do you install an intumescent grille?

When installing square ventilation grilles, it is important they are fitted correctly to ensure proper protection in the event of a fire. The method for fitting an intumescent grille will depend on the product type and where it is being installed. For more information on installation, read our guide to fitting intumescent grilles.

Can you put a square air grille on a fire door?

Yes, grilles can be installed on fire doors that have been tested with such an application. However to ensure it complies to fire safety regulations, it should be an intumescent air transfer grille. Depending on the type of grille and fire door, there are requirements you should follow if you choose to install a grille on a fire door.

Filter

ATG Type

Brand

Colour

Height

Width

Price (Exc. VAT)

Lorient 450 x 450mm size Cover Grille Silver

Lorient 250 x 250mm size Cover Grille Silver

Lorient 150 x 150mm size Cover Grille Silver

Pyroplex® 300x300mm Cover Grille - White

Lorient 500 x 500mm size Cover Grille White

Lorient 600 x 600mm size Cover Grille White

Pyroplex® 225x225mm Cover Grille - White

Pyroplex® 225x225mm Cover Grille - Silver

Pyroplex® 150x150mm Cover Grille - Silver

Lorient 100 x 100mm size Cover Grille Silver

Pyroplex® 150x150mm Cover Grille - White

Our Brands

What is the purpose of a square intumescent air vent?

How do you install an intumescent grille?

Can you put a square air grille on a fire door?

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Square Air Vent Covers

Filter

ATG Type

Brand

Colour

Height

Width

Price (Exc. VAT)

Lorient 450 x 450mm size Cover Grille Silver

Lorient 250 x 250mm size Cover Grille Silver

Lorient 150 x 150mm size Cover Grille Silver

Pyroplex® 300x300mm Cover Grille - White

Lorient 500 x 500mm size Cover Grille White

Lorient 600 x 600mm size Cover Grille White

Pyroplex® 225x225mm Cover Grille - White

Pyroplex® 225x225mm Cover Grille - Silver

Pyroplex® 150x150mm Cover Grille - Silver

Lorient 100 x 100mm size Cover Grille Silver

Pyroplex® 150x150mm Cover Grille - White

Our Brands

What is the purpose of a square intumescent air vent?

How do you install an intumescent grille?

Can you put a square air grille on a fire door?

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Warehouse / Collections

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