Loaded Floor

FIREFLY® Loaded Floor system is an easy to install, single layer, fire-rated compartmentation system that can be simply installed in loaded floor spaces from above and below. Tested and certified to provide up to 60 minutes fire integrity and insulation, utilising the trusted FIREFLY® FB180 Batt floor system.

Can be easily installed and friction-fit into new and existing floors, with excellent sound reduction and insulation properties.

USE AREAS
Developed specifically for enhancing fire resistance in loaded timber floor constructions, the FIREFLY®Loaded Floor System is designed to friction-fit between joists coated with FIREFLY® Ablative Coating. It can be installed from above? or below, making it ideal for projects where ceiling access is restricted

Fire compartmentation in multi-occupancy dwellings, flats, and conversions
New-build timber floors requiring REI 60 fire performance
Widely used to provide fire compartmentation in applications such as multiple occupancy dwellings, retail and leisure
Can be installed retrofit from above or below, ideal for historic buildings
where existing ornate or lathe and plaster ceilings cannot be disturbed
Compatible with FIREFLY® products as part of a tested system.

APPLICATION
Batt is cut to size and friction- fitted between timber joists (minimum 44 × 196 mm C16 softwood at 600 mm centres), all of which must be treated with FIREFLY® Ablative Coating to maintain fire performance. Batts are installed flush with the underside of the joists and sealed at all joints and perimeters using FIREFLY® FR Acrylic Intumescent Sealant to form a continuous fire protection layer.

CONSTRUCTION
Layers of mineral wool are combined to create a 60mm thick board product, with an ablative coating factory-applied to both sides. The board has a density of 180kg/m3 with a rigidity that makes it suitable for friction fitting.

KEY BENEFITS

Single-layer 60 mm batt installation provides 60 minutes loadbearing capacity, integrity & insulation (REI 60)
Fully tested to BS EN 1365-2:2014 (loaded floor) Ideal for retrofit to leave ornate or lathe-and-plaster ceilings undisturbed while upgrading fire compartmentation
Ease of installation with standard batt tools and friction fitting – no mechanical fixings required; FIREFLY® Sealant and Coating also available as part of the tested system
Acoustic reduction of 27 dB from batt in isolation
Fully supported with detailed drawings and installation instructions, including service penetration guidance Meets requirements of BS EN 13501-2:2023, providing a tested and certified solution as part of a FIREFLY® system

TITLE
FIREFLY® FB180 Ablative Batt Loaded Floor System 60mm

DESCRIPTION
Easy-to-install fire-rated system for loadbearing timber floors, providing 60 minutes loadbearing capacity, integrity, and insulation

TESTING
Meets requirements of BS EN 1365-2:2014 – REI 60 (Loadbearing Capacity, Integrity & Insulation)

CERTIFICATION
Classification Report No. WF551857 (Issue 1) – REI 60 to EN 13501-2:2023. 3rd-party certification under application via IFCC Scheme (IFCC 1983)

APPLICATION
Floor use only. Tested for penetrations – see installation drawings for specific details. Refer to FIREFLY® FB180 Ablative Batt 60mm. Floor System Data for VERTICAL use or visit the FIREFLY® website / loaded floors.

PROPERTIES
Layered mineral fibre, ablative coating on both sides, white appearance. Density 180kg.m-3

ACOUSTICS
27dB sound reduction

DIMENSIONS
1200 x 600 x 60mm.

PACKAGING
Supplied bagged to provide protection in transit and on site. Do not allow the batt to be exposed to rain or prolonged wet conditions.

LIMITATIONS
Not to be installed in areas of RH >85%
Storage: cool, dry place – protect from frost