Introducing a Brand New Series: Meet The Contractor | Watch Now

  • United Kingdom flag icon.

    Proven, quality UK-made passive fire protection products.

  • Flame icon.

    Tested firestopping solutions with full support and documentation

  • Person presenting icon.

    Regular CPD training, toolbox talks, and early engagement sessions.

  • Book icon.

    Online tools and resources for effective passive fire protection.

An orange gradient screen with the Quelfire team talking to customers at an exhibition.

Glossary

Explore our latest project case studies, showcasing how Quelfire systems have been used across a range of real-world applications and building types.


  • Fire Stop

    A seal provided to close an imperfection of fit or design tolerance between elements or components, to restrict the passage of fire and smoke.

  • Fire Stop Slab

    Cavity fire barrier manufactured from rock fibre mineral wool insulation for masonry construction.

  • Fire Stopping (Firestopping) System

    Is a fire protection system made of various components used to seal openings, control joints in fire resistant walls, floors, or assemblies.

  • Fire Triangle

    Also called the Combustion Triangle, this is a simple model for understanding the necessary ingredients for most fires. The triangle illustrates the three elements a fire needs to ignite: heat,...

  • Firewalls

    Firewalls not only have a rating, but they are also designed to sub-divide buildings such that if collapse occurs on one side, this will not affect the other side.

  • Flexible Construction

    Drylining horizontal or vertical supporting construction consisting of studs or joists, including linings and optional insulation.

  • Flexible Ducting

    Flexible ducts (also known as flex) are typically made of flexible plastic over a metal wire coil to shape a tube. They have a variety of configurations. In the United...

  • Flexible Partition

    A metal stud drylined partition is defined as a flexible partition in a fire test.

  • Flexible Wall

    Flexible wall is a vertical supporting construction consisting of studs or joists, including linings and optional insulation. The term is commonly used when referring to fire-rated plasterboard partition systems. This...

  • Formed Letterbox

    A formed letterbox is an aperture that has been physically constructed within a wall construction using stud and boards of the same specification as the wall itself. Otherwise known as...

  • Fire Insulation Rating

    A fire insulation rating is a measure of time that a specific component or system can withstand the heat generated from a fire and prevent it from breaching the building’s...