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Gap Vent

A vent designed specifically to fireproof smaller gaps and openings in the façade while maintaining the necessary venting.

Flame and ember resistant Gap Vent

The gap vent is a vent developed by Securo with the aim to secure small, uneven gaps and openings in old wooden facades while maintaining required venting. Typical application can be openings at ends of roof boarding. The gap vent will secure these openings while ensuring necessary venting.

A unique quality of the gap vent is that it is flexible. It can be pressed flat but will bounce back to its original shape when the pressure is released. This property makes the gap vent suitable for use in small air gaps of varying width. The product is easy to install by hand and is barely visible from the outside once installed. The vent is easy to remove without leaving any trace on the building, making it well suited for listed/protected buildings.
The Norwegian organization for cultural heritage recommends the product in its guide for fire protection of old wooden churches.

The gap vent can be described as a wire mesh tube containing a string of intumescent. The vent will not seal the gap when installed but allows necessary venting. The mesh is dimensioned to stop embers and flames. The intumescent will expand when exposed to heat and will fill and close the vent. Hence, the vent will stop both embers and initial fire as well as sustainable fire.

The standard dimensions 20 mm and 40 mm diameter can be used in gaps up to 16 mm and 30 mm, respectively.

Product data

Available in desired lengths.
Diameter: 20 mm and 40 mm

Tested in accordance to: prEN 1364-6:2016 

Fire rating 20 mm:
E 55 tested in wood
E 60 tested in gypsum
(Placed double, the vent can achieve E 60 and EI 20 and E 60 and EI 48 in wood and gypsum respectively.)

Fire rating 40 mm:
E 57 tested in gypsum

Documentation and descriptions

The concept

Firebreather technology (FB) is a unique concept for the development of passive ventilation grilles which has the exceptional characteristic that they block the spread of flames, heat and embers with immediate effect in the case of fire.

Firebreather by Securo Logo

Our products

Cavity barrier

Façade vent

Air Transfer Grilles

Eaves Vent (Sold out)

Gap Vent