How Fire Barriers For Expansion Joint System Can Help You Contain And Prevent Fire From Spreading

Fire barrier is applied in all floor and wall joints in fire-rated locations.

A fire barrier is installed under joint cover.

To prevent fire and smoke from penetrating an expansion joint

opening for specified rating period, e.g. 1, 2, 3 hours.

In some cases, to prevent temperature on the cold side of an

expansion joint opening from rising above a predetermined rate

for the specified rating period, e.g. 2 hours.

The "cold side" of an expansion joint opening refers to the area within a structure adjacent to or opposite the area where a fire or smoke source is


There are three main fire-stopping systems used in expansion joint opening that are:

  1. Mineral Wool + Fire Rated Sealant

  2. Mineral Wool Rope

  3. Ceramic Blanket System

To learn more about how Prospec can assist