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Specifiers Journal 2016

Specifiers Journal 2016

Prefabricated three

Prefabricated three dimensional façade design and construction using prefabricated precast concrete Modern contemporary building designers are demanding buildings requiring a high degree of relief in the surface of the façades. This usually involves constructing the buildings in a traditional method where an internal structural layer is built, a cavity is left which can then contain thermal insulation (If it is not already installed in the structural layer as in structural framed steel systems); the external elements are then installed. This system has in the past worked very well, now however, where Building Regulations have started to demand higher thermal standards combined with the increasing deleterious effects of the Y factors, (the thermal bridges associated with fixings such as wall ties and cladding supports) means that attempting to achieve the lower U values demanded by the regulations is becoming increasingly difficult. Wall thicknesses are increasing and this creates a number expensive building solutions. There is now however an alternative way of keeping these costs in check and reducing the overall wall thickness. A revolution had been occurring in the concrete industry allowing the external façade to be installed in one process. This can be achieved either by pouring in place on site or more commonly by installing 8 SPECIFIERS JOURNAL prefabricated precast concrete panels to form both the structure and the visible architectural finish complete with windows if required. Whilst this method of construction is not new to the construction industry; hospitals, schools and hotels as well as industrial buildings have been built for many years all over the British Isles. The new development is now enabling a sculptured relief in the façade, completely thermally broken. No longer does a thermally broken concrete sandwich panel have to flat and boring. The installation of the complete wall using a series of panels in one operation, using the Thermomass thermally broken connectors has enabled U values as low as 0.10 W/m 2 K to be achieved and lower if required, the real innovation came with the development of the X connector technology from Thermomass. Designed initially to achieve composite reaction between two wythes of concrete its has exceptional strength characteristics proving to be a real asset when insulation thicknesses are having to be increased and when additional deep rustications in the external façades are becoming a commonly specified requirement. The over all effects are stunning, making good use of natural products, creating completed project that is highly sustainable, has increased thermal mass and comfort yet enabling projects to be delivered on time and to budget.

Whatever you’re building Energy saving Thermomass concrete sandwich panels are changing the way Britain Builds by providing off-site construction proven to give: Sustainable, thermally broken constructions with certainty of programme and certainty of cost. With over thirty years experience the Thermomass system has been supplied on over 80 million m 2 of walling worldwide with no failures. With this track record and proven ability, certainty of programme and cost can be assured. Thermomass is now changing the way the Britain builds over the last ten years in the UK many high specification thermally broken buildings have now been completed. The very low “U” values (0.10W/m 2 K and below) and thermally broken characteristics of Thermomass capitalise on the high thermal mass of concrete ensures that operating costs are low as well as increasing thermal comfort, this makes the system suitable any building where people are working or living providing a sustainable solution to modern habitation. Thermomass buildings include zero carbon and PassivHaus standard projects. Thermomass structures for educational establishments large and small, hospitals, secure establishments such as prisons and police stations as well as entertainment locations such as shopping centres and cinema’s. The retain sector has also been supplied from supermarkets to their distribution supply chain including temperature controlled freezer locations and factories where the robust, fireproof and durable nature of the Thermomass system is highly desirable. This structural ability of the panels allows them to be used as part of cross-wall constructions for multi-storey developments such as Hotels, student accommodation and apartment blocks. All Thermomass projects are installed with no scaffolding and minimum site movements making a huge contribution to increasing on-site health and safety.

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