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Ductwrap and Ductslab For the thermal insulation of ductwork and water storage tanks.

Ductwrap and Ductslab ROCKWOOL Ductwrap and Ductslab provide thermal insulation for air conditioning, warm air and extract ducts used in the internal and external environment generally within plant rooms and boiler houses. Offering a choice of a flexible roll or semi-rigid slab according to the application, Ductwrap and Ductslab deliver an acoustically absorbent and non-combustible insulation solution which is easy to handle and install.

ROCKWOOL Ductwrap and Ductslab are used for the thermal insulation of cold water storage, feed and expansion tanks. The products are recommended for ductwork for service temperatures of up to 230°C. Acoustically absorbent Water repellent Chemically inert Ductwrap is a lightweight, flexible insulation roll, faced with reinforced aluminium foil. Easy to handle and install Ductslab is a semi-rigid insulation slab, faced with reinforced aluminium

Calculation of length The calculation to determine the length of Ductwrap required to insulate the pipe or duct is made using the formula shown below. The required thickness of Ductwrap and Ductslab insulation will depend on such factors as duct air temperatures, ambient air temperatures and the designed heat losses. The tables included are for general guidance only. t Thickness of ROCKWOOL insulation for chilled air ducts (taken from BS 5422:2009 Table 12) Table 12 - Ductwrap Minimum insulation thickness for condensation control on ductwork carrying chilled air in ambient conditions:...

Indicative thickness of insulation for ductwork carrying warm air to control heat loss (taken from BS5422:2009 Table 13) Horizontal duct @ 35ºC, still air @ 15ºC Table 13 - Ductwrap External surface emissivity Minimum thickness of ROCKWOOL Ductwrap (mm) 0.05 (eg. Bright aluminimum foil) Maximum heat loss (W/m²) 0.44 (eg. Dusty galvanised steel) Calculated Advised Calculated Advised Calculated Advised thickness (mm) thickness (mm) thickness (mm) thickness (mm) thickness (mm) thickness (mm) Table 13 - Ductslab External surface emissivity Minimum thickness of ROCKWOOL Ductslab (mm) 0.05 (eg....

Performance Standards and approvals Ductwrap and Ductslab products are CE marked in accordance with BS EN 14303. For more information please visit www.rockwool.co.uk/DOP Ductslab satisfies the requirements of BS 3958–5, ‘Specification for bonded man-made mineral fibre slabs’. Ductwrap and Ductslab can be used to satisfy the requirements of BS 5422 ‘Method for specifying thermal insulating materials’. The product has been authorised for use in LUL surface and sub-surface premises when installed in accordance with this data sheet – please refer to the LUL Approved Product Register website...

pH neutrality ROCKWOOL insulation is chemically compatible with all types of pipes, ducts, equipment and fittings. (Guidance is given in BS5970 regarding the treatment of austenitic stainless steel pipework and fittings). Stonewool insulation is chemically inert. A typical aqueous extract of ROCKWOOL insulation is neutral or slightly alkaline (pH 7 to 9.5). Durability ROCKWOOL stone wool insulation products have been proven in service for over 60 years, in a wide range of climates and degrees of exposure. ROCKWOOL insulation will generally perform effectively for the lifetime of the...

a) Flat aluminium zinc coated steel protection Mild steel sheet continuously hot dipped with 185g/m2 aluminium-zinc coating to BS EN 10326 and BS EN 10327, applied directly to insulating material. 0.4mm thick flat sheet Fixed and installed in accordance with BS5970. b) Ribbed aluminium-zinc coated steel protection Mild steel sheet continuously hot dipped with 185g/m2 aluminium-zinc coating to BS EN 10326 and BS EN 10327, applied directly to insulating material. 0.4mm thick ribbed sheet Fixed and installed in accordance with BS5970. c) Aluminium sheeting protection Apply flat (embossed) or...

2. Horizontal ducts concealed from view To be insulated with ROCKWOOL Ductwrap/ Ductslab, nominal density 45kg/m3, having a factory applied reinforced aluminium foil facing. Joints to be securely taped with 75mm minimum wide soft aluminium self adhesive tape. The insulation on the underside of the ducting to be additionally secured by suitable insulation hangers at 300mm centres. The whole to be further supported by means of:▪ 19 - 22 SWG x 50mm mesh galvanised wire netting. Where a vapour barrier is required, care to be taken when applying wire mesh support to avoid damaging the aluminium...

Fire resistance When it comes to our approach to sustainability, it is, simply put, a matter of living our purpose to address the challenges of modern living in a sustainable manner. This means using natural materials to make products that have a positive impact on society. Acoustic comfort Sustainable materials Durability Health and safety The safety of ROCKWOOL stone wool is confirmed by current UK and Republic of Ireland health & safety regulations and EU directive 97/69/EC:ROCKWOOL fibres are not classified as a possible human carcinogen. A Material Safety Data Sheet is available and...

Legal disclaimer The ROCKWOOL Trademark ROCKWOOL® - our trademark The ROCKWOOL trademark was initially registered in Denmark as a logo mark back in 1936. In 1937, it was accompanied with a word mark registration; a registration which is now extended to more than 60 countries around the world. The ROCKWOOL trademark is one of the largest assets in the ROCKWOOL Group, and thus well protected and defended by us throughout the world. If you require permission to use the ROCKWOOL logo for your business, advertising or promotion. You must apply for a Trade Mark Usage Agreement. To apply, write...

January 2021 ROCKWOOL Limited Pencoed Bridgend CF35 6NY Tel: 01656 862 621 info@rockwool.co.uk rockwool.co.uk Revision No - v1. © ROCKWOOL 2021. All rights reserved.