Fire collar
A fire collar is a type of fire resistant fitting that maintains the integrity and fire insulating rating of a building element which has been penetrated by building services. This might be required, for example, when walls or floors are penetrated by cables, ducts, pipework, and so on. In this situation, the fire rating of the wall or floor can be reduced as the penetration can provide a path that allows fire to spread beyond the compartmentation intended to contain it.
Typically, fire collars comprise a retaining ring which contains an intumescent material that expands when heated rapidly. The strong compressive force exerted by the expanded material forms a fire-resistant seal, closing off the service component, and creating an insulating barrier.
There are different types of fire collar for different applications (for plastic pipes, copper pipes, general building services, electrical cables, and so on), and they can be cast-in-place or attached to the wall or floor. Other considerations include the fire collar size, ease of installation, aesthetics and so on.
[edit] Related articles on Designing Buildings Wiki
Featured articles and news
Electrotechnical excellence, now open for entries.
Net zero electricity grids BSRIA guide NZG 5/2024
Outlining the changes needed to transition to net zero.
CIOB Global Student Challenge 2024
Universitas Indonesia wins for second year running.
New project and cultural district described in detail.
The nature of EPCs, crticism and inaccuracies.
History, issues and redesign.
From waste recycling to energy performance the hierchy.
An introduction to WERCS and WEEE responsibilities
Dealing with 2 million tonnes of waste equipment a year.
Global BACS Market: analytics and optimisation
A BSRIA glance at building automation and control systems.
What it is and how to use it.
Types of insulating plaster by binder and insulant.
Investors in People: CIOB achieves gold
Reflecting a commitment to employees and members.
Scratching beneath the surface; a guide to selection.
ECA 2024 Apprentice of the Year Award
Entries open for submission until May 31.
UK gov apprenticeship funding from April 2024
Brief summary the policy paper updated in March.
For the World Autism Awareness Month of April.