FIREFLY BATTS BUILD COMPARTMENT WALLS IN THE MIDLANDS

Coventry-based KRASI Fire Protection was appointed to carry out all the upgrades within the roof space of a late 20th-century residential development.

As well as undertaking the design work, KRASI installed a temporary walkway within the roof zone and began erecting studwork partitions to either side of the central access corridor, creating a framework into which the FIREFLY FB180 batts could be built.

This construction was treated on both sides with the ablative coating, while the manufacturer’s Penowrap was used to protect service penetrations.

Contracts Manager for KRASI, Daniel Oldacre, said: “We decided to install the FB180 fire batt system to achieve the specified fire rating in terms of both integrity, 90 minutes, and insulation, 60 minutes. The total installed area was over 200m², incorporating the cavity closer at the head to achieve full compliance.

“Access through the barriers for any future work has been facilitated by installing eight FR120 access hatches.”

The 1200 x 600mm batt sheets are 60mm thick and feature the ablative coating on both sides of the layered, non-combustible mineral fibre, which has a density of 180kg/m³. FIREFLY FB180 Batts also deliver a sound reduction of up to 32dB in floor and ceiling voids.