Providing a fire-tested solution to close the void between roof membrane and tile at compartment lines, FIREFLY Roof Cavity Closer is a specially manufactured combination of Ablative Batt & Intumescent Graphite.

Use Areas:

The FIREFLY Roof Cavity Closer is designed to extend the compartmentation line all the way through the roof membrane to the outer tile/sheet. It is installed below the membrane and features a bonded intumescent graphite strip that will expand to fill the void to the outer tiles in the event of a fire. FIREFLY Roof Cavity Closer can be used when installing a FIREFLY Barrier or a FB180 Batt system, in order to provide a tested and certified solution. CONSTRUCTION Manufactured using FIREFLY FB180 Ablative Batt and an intumescent graphite layer bonded to the narrow edge of the Batt. Supplied in cut sizes suitable for intended applications, but can be further trimmed to size on site.

Testing: Tested as a system against the requirements of BS EN 1363-1:2020

Certification: 

Fully tested with 3rd party certification under application

Application: Vertical use only

PROPERTIES: Layered mineral fibre, ablative coating on both sides, white appearance with intumescent graphite strip

Dimensions: 1200 x 150 x 50mm, 600 x 150 x 50mm (stocked) 1200 x 400 x 50mm, 1200 x 300 x 50mm, 600 x 400 x 50mm, 600 x 300 x 50mm (made to order)

Packaging:

Supplied bagged to provide protection in transit and on site. Do not allow the batt to be exposed to rain

Storage: cool, dry place – protect from frost

Product Data Sheet Links

Firefly Roof Cavity Closer Data Sheet

The above information is based on current test data, health and safety information and application instructions supplied by our suppliers and manufacturers of the products. It is supplied for guidance and to the best of our knowledge is true and accurate. Customers should satisfy themselves to the suitability of the products in its intended use and no guarantee is given or implied as the conditions of actual use are beyond our control. If in doubt the customer should consult the designer of the project or the local building control. 

Fire Stopping Shop, disclaim any liability for loss, damage or other expense which may arise from the use of this information, data or products refereed to and reserve the right to amend or change any details without notice. This statement does not affect your statuary rights.