Triton Systems designed and supplied a ground gas protection system for a new build primary school site in Somerset.
On instruction from engineers, Stride Treglown, the aim was to protect the site from ground gasses on the contaminated, brown field site in accordance with BS8485, CIRIA 665, NHBC and the Local Authority Ground Gas Handbook.
The system was installed by Certus Construction Ltd, comprising Triton’s TGS-GV25, a 25mm thick, single sided geo-composite that provides a void beneath the floor slab and, when connected to the air venting system, allows sufficient air changes to dilute any gases present.
The TGS-GV25 was installed in strips at 6 metre centres across the site and linked to ground level vent boxes before the installation of insulation and Triton’s TGS-HP750 membrane as a gas and waterproofing barrier.
High performance, BBA approved, TGS-HP750 reinforced gas barrier incorporates a 12 micron aluminium foil layer for maximum protection against ground gases. The membrane is very robust, flexible and easy to install on site with its unique composition. In addition, there is no need to install a separate DPM, as when placed below the slab, the system provides protection from damp.
Triton’s liquid applied TT Vapour Membrane was used to treat the steel intense ring beam, before the TGS-HP750 was sealed to it to create a fully sealed gas-proof and waterproof system.
Unit 3 – 5 Crayford Commercial Centre,
Phone: 01322 318830
Fax: 01322 524017
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