Solutions for Fire

ARC Cavity Stop Socks & TCBs

ARC Cavity Stop Socks have been developed as thermal and acoustic fire stops that are designed to restrict the spread of smoke and flames within external masonry and timber frame walls, and further to minimise the effect of flanking noise pollution at wall junctions.

ARC Cavity Stop Socks are lengths of low resin, non-combustible, Rockfibre mineral wool, sleeved in 50 micron polythene for on-site weather protection.

• Up to four hours fire integrity for masonry construction- Warrington Fire Research test
• Up to one hour fire integrity for timber frame construction - Warrington Fire Research test
• Polythene encapsulated cavity stop sock
• Easily installed both horizontally and vertically with compression fit
• Prevents the spread of smoke and flames within external masonry and timber frame walls
• Minimises flanking noise at wall junctions
• Available in standard widths of 65, 75, 100, 125 and 150mm, with special cavity widths available on request
• TCB (flanged stopsock) also available for timber frame applications

Standard Dimensions

Please follow this link for information on all standard sizes/cavity widths, required compression, fire integrity and packaging specification.

Non standard sizes available on request.

ARC Fire and Acoustic Party Wall DPC

The ARC Fire and Acoustic DPC enables the closing of an external cavity at the junction with a party wall and between floors, providing resistance to the spread of flame along the cavity. Where a separating party wall meets the external cavity wall, building regulations require the use of a mineral wool closer for acoustic insulation purposes. This product meets the requirement by significantly reducing the sound transmission along the cavity. The Rockfibre insulation is protected by a damp proof course on the external face, therefore satisfying a requirement of the National House Building Council (NHBC).

In order to seal off internal and external corners, an L-shaped acoustic DPC is available, and is recommended by the Robust Details (Jan 05). Dimensions available on request.

• Four hours fire integrity - Warrington Fire Research test
• Part E compliant
• Robust Detail requirement
• Minimises transmission of flanking noise along the cavity of external walls and between floors
• Easily installed as brickwork is constructed
• Vertical and horizontal applications
• Available in standard cavity widths of 50, 65, 75, 90, 100, 125 and 150mm, with special widths available on request

Standard Dimensions

Please follow this link for information on all standard sizes/cavity widths, required compression, fire integrity and packaging specification.

ARC Fire Stop

The ARC Fire Stop prevents the passage of smoke and flames through narrow voids in buildings. Manufactured from high density Rockwool mineral wool, it is held in position by compression.

• Four hours fire integrity - tested at Warrington Fire Research
• High density mineral wool fire stop strip for closing off narrow voids
• 1000mm long lengths
• Thicknesses available 10 - 50mm. Different widths and thicknesses available on request

Applications

• Top of masonry wall under soffit
• Above partitions
• Expansion joint in masonry wall
• Within metal cladding systems
• Between ceilings and walls

Standard Dimensions

when used over blockwork (standard block widths 100 or 140mm)

ARC Fire Stop Slab

The ARC Fire Stop Slab is made from foil faced high density rockfibre. ARC's product is designed with a rebated jointing system for improved fire performance as standard.

Suitable for use in both masonry wall cavities, and at the edge of a concrete floor slab. Available in cavities up to 300mm wide and with over 3 hours fire integrity

• Easily installed
• Suitable for cavity widths upto 300mm
• Over 3 hours fire integrity - Warrington Fire Research test
• Manufactured with a rebated joining system
• ARC will also pre-cut slabs to the required cavity widths

Fitting Instructions

ARC Fire Stop Slab is cut to the cavity width and installed using fixing brackets (2 per length). Ideally friction fitted with a minimum of 5mm compression to prevent smoke leakage. The rebated joints must be fitted as tightly as possible without gaps. If the slab requires air tightness, the joints should be taped and intumescent mastic should be applied to the edges.

Technical Data

The ARC Fire Stop Slab uses rockfibre mineral wool which conforms to BS EN 13162: 2001 Thermal Insulation products for buildings, factory made mineral wool specification, and achieves a fire classification of Euroclass A1 as defined in BS EN 13501-1. ARC's Fire Stop Slabs have been tested in accordance with BS476: Part 20: 1987 and have achieved over 3 hours fire integrity.

Standard Dimensions:

ARC Fire Stop Slabs: 1000 x 600 x 100mm
or cut into strips for the required cavity width.

ARC Eco-Closer

The ARC Fire Rated Eco-Closer is a rigid PVCu profile, with flexible weatherseal, insulated with non-combustible rockfibre insulation. ARC Eco-Closer has 1 hour fire integrity, tested at Warrington Fire Research. Preferred by specifiers and ideal for all types of building work including major contracts.

Four in one rockfibre insulation, providing a fire, thermal and acoustic solution as well as environmental benefits (zero ODP and GWP).

Complies with the 2010 Part L Building Regulations. Prevents cold bridging, eliminating moisture, mould and staining around windows and doors.

• 1 hour fire integrity - Warrington Fire Research test
• Closes off cavities around window and door reveals
• Rigid PVCu profile
• Flexible weatherseal helps prevent drafts around window and door reveals
• Available in cavity widths from 50 to 150mm
• Easy to install (nail to block or build in with stainless steel ties)
• Complies to Part L 2010
• Prevents cold bridging
• Also available with single flange for check reveal detail
• Insulated with non-combustible check reveal detail
• Insulation ODP and GWP rating zero

Standard Specifications

ARC Fire Rated Insulated DPC / Cavity Closer

The ARC Rockfibre Insulated DPC ins an insulated DPC which has been developed to close masonry cavities for thermal acoustic and fire applications. The primary reason for fitting the ARC Insulated DPC is to close off cavities around windows and doors preventing cold bridging. Can easily be installed as the brick and block work progresses where a traditional block return is used. Also available with a polyethylene insulation.

• 4 hours fire integrity - Warrington Fire Research test
• Easy to install
• Prevents cold bridging
• Exceeds the minimum requirement for Part L 2010 provided the window is set back 30mm from the inner face of the outer brickwork and thermally efficient materials are used in the construction

Non standard sizes available on request.

ARC Rockfibre Lamella Thermal and Acoustic Plasterboards

Designed to offer both thermal and acoustic insulation for internal walls, helping to improve upon statutory requirements. ARC Rockfibre Lamella Plasterboards are suitable for both refurbishment and new build projects in the domestic and commerical markets where increased thermal and acoustic performance is required. Rigid rockfibre slabs are cut into strips and turned through 90 degrees so that the fibres lie at right angles to the plasterboard. This gives increased resistance to compression of a slab of the same density.

ARC's Lamella Plasterboards are manufactured using rockfibre mineral wool which conforms to BS EN 13162: 2001 Thermal Insulation products for buildings, factory made mineral wool products specificiation, and achieves a fire classification of Euroclass A1 as defined in BS EN 13501-1.

Also available with a standard rigid rockfibre mineral wool slab insulation.
Various sizes and thicknesses available on request.

ARC Lamella Plasterboard Laminate:

Plasterboard length 2400 x 1200mm wide x 12.5mm thick.
Plasterboard conductivity 0.25W/mk

ARC Thermal and Acoustic Lamella Floor Boards

Designed to provide both thermal and acoustic insulation for both ground and intermediate floors, in either new build or refurbishment work. ARC Thermal and Acoustic Lamella Floor Boards consist of high density Rockfibre mineral wool lamella strips bonded on to tongue and grooved moisture-resistant chipboard.

• Excellent thermal and acoustic insulation
• CFC and HCFC free
• Suitable for all constructions
• Will accomodate pipe runs and minor imperfections in sub floor
• Easy to lay
• Suitable for new build and refurbishment work

The ARC Lamella Floor Board works on the 'floating floor' principle to isolate and absorb impact and airbourne sound. Rigid Rockfibre slabs are cut into strips and turned through 90 degrees so that the fibres lie at right angles to the chipboard. This gives increased resistance to compression of a slab of the same density, whilst remaining resilient to take up imperfections in the sub floor.

Available with either 18 or 22mm chipboard bonded to insulation with a thickness ranging from 15 to 100mm.

ARC Lamella Boards:

Chipboard length 2400mm x 600mm wide x 18mm thick

Chipboard conductivity 0.14 W/mk

Insulation: Lamella Rockwool Conductivity 0.044 W/mk, lamella rockfibre insulation supplied to the required thickness standard thickness 25 - 100mm)

 




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