Insulation for Acoustic

ARC Rockfibre Insulated Acoustic DPCs

ARC Rockfibre Insulated Acoustic DPCs has been specifically designed to provide fire protection and an acoustic barrier within the cavities of external walls.

ARC Vertical Acoustic DPC

The ARC Vertical Acoustic DPC enables the closing of an external cavity at the junction with a party wall, 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, as shown to the right, and is recommended by the Robust details (Jan 05). Dimensions available on request.

• 4 hours fire integrity - Warrington Fire Research test
• Meets NHBC Acoustic standards
• Part E compliant
• Robust Detail requirement
• Minimises transmission of flanking noise along the cavity of external walls
• Easily installed as brickwork is constructed
• Vertical and Horizontal applications
• Available in standard cavity widths of 50, 65, 75, 90, 100mm. Special widths available on request

Standard Dimensions

ARC Horizontal Rockfibre Fire and Acoustic DPC

The ARC Horizontal Rockfibre DPC has been developed to restrict the passage of smoke and flames and to minimize sound transmissions through external cavities at separating floor levels which is a requirement of building regulations. 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, thus satisfying a requirement of the National House Building Council (NHBC).

• 4 hours fire integrity - Warrington Fire Research test
• Meets NHBC Acoustic standards
• Part E compliant
• Robust Detail requirement
• Minimises transmission of flanking noise along the cavity of external walls
• Easily installed as brickwork is constructed
• Vertical and Horizontal applications
• Available in standard cavity widths of 50, 65, 75, 90, 100mm, and special widths available on request

Standard Acoustic Wall DPC Dimensions (Vertical and horizontal)

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 commercial 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 Rockfibre Lamella Plasterboards are available incorporating tapered edge, square edge, and foil-faced plasterboards. Non-combustible to BS476: Part 4 1970 (1984) and Class 1 Surface Spread of Flame to BS476: Part 7 1987 and Class ‘0’ to the building regulations. The base Rockfibre material is chemically inert and compatible with all building materials, rot-proof and does not encourage the growth of fungi, mould or bacteria.

Also available with a standard rigid Rockfibre mineral wool slab insulation.

Various sizes and thicknesses available on request.

ARC Lamella Plasterboard Laminate:

Plasterboard length 2400mm x 1200mm wide x 12.5mm thick.

Plasterboard Conductivity 0.25 W/mk

Insulation: Lamella Rockwool Conductivity: 0.044 W/mk

ARC Thermal and Acoustic Plasterboard Laminates

Designed to provide an insulated internal lining for walls and ceilings, enhanced thermal and acoustic insulation is provided to satisfy the ever increasing requirements in both new build and refurbishment projects.

ARC Thermal Plasterboard Laminates are available incorporating tapered edge, square edge and foil faced plasterboard, incorporating a variety of insulations offering varying degrees of thermal and acoustic efficiency for both adhesive and mechanical fixing methods.

ARC Plasterboard Laminates:

Plasterboard length 2400mm x 1200mm wide x 12.5mm thick.

Plasterboard Conductivity 0.25 W/mk

Insulation: Extruded Polystyrene Conductivity 0.029 W/mk

                Expanded Polystyrene Conductivity 0.038 W/mk

                Polyurethane Conductivity 0.024 W/mk

                Phenolic Conductivity 0.019 W/mk