Nov 14, 2019 Last Updated 10:52 AM, Aug 14, 2019

Marmox Thermoblock specified for low energy extension to Kent School

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The construction of a new extension to the teaching facilities at Glebe School in West Wickham, Kent, has featured the use of 140 mm wide Thermoblock units manufactured by Marmox Limited, specified to carry the main structural envelope of the two-storey building.

The incorporation of Thermoblocks at the wall-floor junction results in the virtual elimination of the heat loss at this cold bridge. The new building will provide the secondary school with a number of facilities including an art-room, additional classrooms and new washrooms. Furthermore, as is common now in the education sector, the extension has been designed to achieve very good standards of energy consumption through high levels of insulation.

Marmox Thermoblocks are ideally suited to this ‘Fabric First’ approach and are regularly used to address the problem of perimeter heat loss at both ground and upper floor levels in either timber frame or more traditional masonry construction.

Romford based Lakehouse was the main contractor for the work and the 270 Thermoblock units – each measuring 140 x 600 x 65 mm – were supplied through Jewson Builders Merchant. In addition, the branch supplied tubes of Marmox Multibond adhesive, which were used for jointing the interlocking Thermoblocks. Thermoblock, which has a compressive strength of 9N/mm² was specified for this demanding application of footing the supporting walls. Thermoblock then serves to greatly extend the heat flow path for the critical floor/wall junction throughout the life of the building.

The 600 mm long units incorporate mini columns of high strength concrete to support the load of the wall above, while the low lambda value insulation effectively lengthens the path for cold-bridging. They are laid just using ordinary bricklayer’s mortar and then by sealing the interlocking ends together with Marmox Multibond, they create a permanent waterproof seal onto which the block or brick wall is then build on.

Last modified on Thursday, 29 September 2016 08:16
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