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Allproof Drop-in fire collars offer a straightforward and efficient passive fire rating solution for thin concrete floors or trapezoidal steel tray concrete floors. These floors, featuring profile changes on the underside of the slab, pose challenges for conventional fire collars fixed beneath a floor slab.
Designed, manufactured, and tested in New Zealand for NZ projects, Drop-in fire collars can be retrofitted around pipes, easily dropping into position and fixed from above. The unique extendable tab allows for adjusting the collar to varying depths of composite floor slabs. DIFCs provide a passive fire protection system for composite floor penetrations on various plumbing services. Assessment confirms that Allproof DIFCs’ Fire Resistance Level (FRL) equals that of composite floors with tray profiles of 60mm, 80mm, and 210mm.
These collars have also undergone testing to provide passive fire protection on floor waste systems, flat slabs, and plasterboard ceilings.
As per requirements set out in NZBC C/AS2 Clause 4.4 Allproof fire stopping products installation “shall be identical to those of the prototype used in tests to establish their FRR”.
Allproof passive fire systems are required to be used in closed, internal spaces, protected from excessive moisture, solvents, oxidising agents, acids and alkalis. They should not be exposed to UV light in service.
Separation or protection must be provided to Allproof Passive Fire Protection Products from heat sources such as fireplaces, heating appliances and chimneys. Part 7 of NZBC Acceptable Solution C/AS1 and C/AS2, and NZBC Verification Method C/VM1 provide methods for separation and protection of combustible materials from heat sources.
NZBC C/AS2 C3.1, C3.2 and C3.3: Allproof PFP products are designed to limit the spread of fire between property from its origin by sealing service penetrations in the separating elements of fire cells. The Technical Literature gives the fire resistance ratings (FRRs) for the Allproof Passive Fire Protection Products that can be achieved to provide the FRR’s as determined by NZBC Acceptable
Solutions C/AS1, C/AS2 and NZBC Verification Method C/VM2.
NZBC C/AS2 4.4 Fire Stopping: Allproof PFP products have been tested in accordance with Appendix C C5.1 for fire stopping. Detailed information on the tested prototypes is available in Allproof’s PFP literature to assist with the correct product selection and install details. When installed as per documentation Allproof PFP products will provide an FRR consistent with the published results and therefore, if selected correctly, no less than the separating element.
NZBC B2: Allproof Passive Fire Protection Products meet code compliance with the NZBC Clause B2.3.1 (b), 15 years.
NZBC F2.3.1 Allproof Passive Fire Protection Products does not present a health hazard to people
This product has been used in a wide variety of projects using a com floor since its launch.
Most plumbing merchants who are located in areas that service tradespersons constructing multi level buildings (i.e. Auckland city centre) now stock this item on their shelves due to its popularity.
At the core of the Allproof passive fire protection product range is the advanced intumescent technology. This enables Allproof to offer products with performance and design advantages for engineers and installers of passive fire protection products.
Allproof’s intumescent material expands when exposed to heat and as its volume increases with significant expansion pressure, it produces a stable char. The intumescent char formed is a poor conductor of heat, retarding heat transfer and retaining the integrity and insulation of service penetrations through otherwise fire-resistance rated walls or floors.
A New Zealand owned company specialising in the manufacture of plumbing and drainage products and systems.
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