Expanded EJOT range provides soffit insulation boost
News Desk

Expanded EJOT range provides soffit insulation boost

New fastener lengths for EJOT’s DDS-Z range enable soffit insulation depths of up to 375 mm to be installed easily and efficiently, with the screws still only requiring an embedment depth into concrete of just 25 mm.

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DDS-Z fasteners are a popular choice in projects requiring soffit liners to meet higher thermal performance and fire resistance objectives in projects such as car parks, undercrofts and other ‘cold’ spaces over which residential or commercial accommodation is built.

However, to meet more stringent standards, much thicker soffit insulation is increasingly being used, particularly non-combustible mineral fibre where performance to Euroclass A1 non-combustible fire classification is also required.

EJOT has responded with the development of a 400 mm option for the EJOT DDS-Z range. Available now, this fastener enables streamlined installation of insulation with a thickness of 375 mm.

Despite the greater fastener lengths, however, all versions still only require a 25 mm embedment into the concrete. This reduces the potential for impacting on reinforcement within the concrete, which could add time, complexity and cost to the project, and because the screw does not expand, it is more favourable for use with pre-stressed concrete beams.

The DDS-Z brings together a premium quality concrete screw with the EJOT DD-T washer. As a fastener specifically designed for the attachment of ceiling insulation and acoustic boards to concrete soffits, the DDS-Z is a steel screw featuring a duplex coating and self-tapping thread for use in cracked and non-cracked concrete.

Resistance to corrosion is assured through DDS-Z’s classifications of C1 (very low), C2 (low) and C3 (medium), making it suitable for projects located in urban and industrial environments with moderate levels of sulphur dioxide pollution in the atmosphere.

To achieve the most effective and best value fixing methodology when using DDS-Z, the EJOT team supports installers and insulation suppliers at the outset to help them achieve the performance goals without making the installation process complex or costly.

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