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A new study has compared costs of installing underoor heang with radiators


data from leading contractors based on three specifications: traditional radiators and 75mm sand and cement screed, traditional radiators with a 50mm flowing screed, and a 50mm flowing screed with underfloor heating.


The findings showed that, for an 80m2


dwelling, installation costs range from £3,003.72 to £3,483.10 for the sand and cement approach; £3,163.72 to £3,563.10 for a 50mm flowing screed with radiators and £3,464.63 to £4,082.30 for a 50mm flowing screed with underfloor heating. The underfloor heating cost includes force drying, which reduces drying time typically by around two thirds, representing a


significant time and cost saving in the construction process. Ross Verity, managing director of ForceDry, says: “Our study shows this approach is only marginally more expensive to install than radiators, but when combined with force drying with the considerable cost benefits of the time saved factored in, the overall costs could actually be much less. Underfloor heating with a flowing screed can be a viable solution for all kinds of housing, including social and affordable. Flowing screeds also have a considerably lower carbon footprint than that of sand and cement screeds.”


www.forcedry.co.uk


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Underoor heang a commercially viable alternave to radiators a new study nds The research, by ForceDry, used


uRoss Verity, managing director of ForceDry


Endeavour to achieve ‘excellent’ energy eciency


The UK’s only Marine Enterprise Zone is set to achieve excellence, in part through innovave use of Brish engineering experse


uOceansgate scheme in Plymouth


Phase one of the 35 hectare Oceansgate scheme in Plymouth is the creation of an office block delivering over 1,000m2 of accommodation over three floors, with a further two terraces yielding 1,200m2 of light industrial space.


With a BREEAM rating of ‘Excellent’, the offices in Endeavour House all feature Gilberts’ Mistrale Fusion (MFS) stand-alone hybrid ventilation, integrated at high level into the façade glazing, specified by consultant engineer Services Design Solution (SDS). In total, 36 MFS128 units have been strategically positioned across the floor spaces, to provide fresh air with no need for additional ductwork or plant. Normally automatically controlled using CO2 and temperature sensors, at Oceansgate a manual boost option also gives occupants control over temperature and air quality in both summer and winter (up to 143l/s in summer and 39l/s in winter); in effect, the system functions primarily as a natural ventilation system, with the built in low energy fan supplementing throughout the year as conditions demand.


MFS draws fresh air into the building, using a mixing damper to modulate airflow and mix the incoming fresh air with warmer exhaust air, extracting the heat without the need for a separate exchanger (as required in conventional MVHR systems). The integrated low energy fan energises to blend the internal air, ensuring an even distribution of airflow, with control over temperature and CO2 levels within, and maintenance of a comfortable internal environment for occupants. In keeping with its ‘green’ credentials Gilberts maintains that MFS can ventilate a typical classroom-sized space for less than £5/annum. The product’s design and construction has a positive impact on the overall building energy efficiency too: MFS attains air leakage better than legislative requirements - 5m3 1W/m2


/HR/m2 /°C. https://gilbertsblackpool.com Kingspan installed on pioneering manufacturing building


The University of Nongham is developing the manufacturing soluons of tomorrow at its new, RIBA award winning research facility featuring pipe and duct insulaon from Kingspan Industrial Insulaon


The Advanced Manufacturing Building has been designed by Bond Bryan and acts as a stylish gateway to the university’s Jubilee Campus. Inside, there is a range of teaching spaces, laboratories and workshops fitted out with cutting-edge production technologies for automation, precision manufacturing and 3D printing. Over 7,000 metres of Kingspan Kooltherm FM Pipe Insulation was installed on pipework across the building. The product is the most thermally efficient pipe insulation in common use within the UK construction industry today and has been awarded Eurofins Indoor Air Comfort Gold.


Richard Drew, group managing director from installers, Gill Insulation, comments: “The big advantage with Kooltherm Pipe Insulation is you can keep thicknesses to a minimum without any trade off in performance. That reduction in size can make a real difference when you’re working in tight service spaces. Our experienced team were able to complete a streamlined fit-out process on the Advanced Manufacturing Building. As ever, Kingspan were on hand to provide any technical support when we required it.”


www.kingspan.com/gb/engb Largediameter pipe lining opens way to wildlife revival


Drainage specialist Lanes Group has used foldandinstall largediameter lining technology to rehabilitate a pipe that that will play a crucial role in creang Europe's largest manmade nature reserve.


Lanes Group has deployed a pillow packer to install a series of point repairs inside a 1,220mm-diameter inlet pipe supplying water to an area of land being turned into the Wallasea Island Wild Coast. The Royal Society for the Protection of Birds, which manages the site on the Thames Estuary in Essex, has a 20-year project to turn farmland into a wildlife-rich saltmarsh twice the size of the City of London. Rehabilitating the pipe was an important step to allow tidal water from the River Roach to flow into a lagoon, one of a number being created to transform 670 hectares of farmland.


Main contractor, Bam Nuttall, commissioned Lanes Group's East London depot, based at Rainham, to line the pipe, using a novel approach that ensured the project could be completed with minimal disruption to wildlife and least cost.


The Lanes team used a pillow packer to install five point repairs, also known as patch liners, to rectify defects and strengthen the pipe so it can


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withstand high water flow rates, especially during high tides.


The pillow packer was lighter and easier to handle than a conventional liner packer. It could be folded to a width of 450mm and installed without an entry manhole having to be dismantled and rebuilt. Once inside, along with each liner, the specialist packer was inflated using compressed air, pushing the resin-impregnated glass reinforced plastic (GRP) liner against the pipe. The liner could then be left to cure in ambient temperature before the packer was removed.


The Lanes East London depot has invested in two pillow packers, each capable of being used to line circular, egg-shaped, or ovoid pipes with diameters of 600mm to 1,300mm. The packers are available for deployment across the UK.


www.lanesfordrains.co.uk BUILDING SERVICES & ENVIRONMENTAL ENGINEER DECEMBER 2018 33 , and a U value of

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