052 RCI 0417

RCI April 2017

INSULATION construction. Having manufacturers’ objects in easily accessible formats allows not only more accurate specification, costings and quantities, but also better facilities management information for future maintenance. These are formats such as the independent Industry Foundation Classes (IFC) which is being promoted as the collaborative file format of choice. A wide range of manufacturer objects are available from platforms such as the NBS National BIM library, which also respects the IFC base format. In addition, BIM objects can usually be accessed via a manufacturer’s website. At Kingspan Insulation we also offer BIM objects through our U-value Calculator with select flat roof calculations. Calculations for the future U-value calculators are a quick way of getting confirmation of build-ups, expected U-values and material thicknesses. For example over 8000 calculations for floor, wall and roofs, are available on Kingspan Insulation’s U-value Calculator app and website (www.uvalue-calculator.co.uk) all pre-calculated by a member of its Technical Services Department who is approved under the ‘BBA/TIMSA Scheme for Calculation Competency Part 1 – U-value and condensation risk’. Where appropriate, these calculations also consider fixings and bridging factors. As such, it already contributes hugely to the 052 APRIL 2017 RCIMAG.COM specification of products for their intended purpose and now it also saves time in acquiring the specific build-up for the building element. For certain build ups on the U-value calculator which cover a wide range of green and warm roof constructions featuring high performance Kingspan Therma range products, BIM objects can be provided with the calculation. This allows items to be simply dropped into the completed build-up of the project without the need to switch out layers, research product values, or use generic build-ups that don’t reflect the intended solution. This, again, will save all parties involved time and expense when planning the project with data that is accurate. www.kingspaninsulation.co.uk/BIM Above: Kingspan Insulation’s flat roofing object landing view in Revit Right: An example of Kingspan Insulation’s flat roof object properties in Revit “Construction industry bodies work towards the standardisation of information that manufacturers provide. By doing so, data can be more accurately compared to determine which materials or build-ups are the best value for the project” When property developer Charlotte Thomson and fiancé Joey Auger bought a derelict public toilet in Cornwall, they had their work cut out for them. The couple planned to turn the 200-year-old building into a romantic cliff-top retreat. To get that cosy home feeling, one important step was to insulate the solid-wall building. They installed Celotex GA4000 in the roof and spent around seven months overhauling the old loo to create a beautiful, modern abode. They purchased the loo – along with garden on the other side of a public footpath – for £115,000, well above the £70,000 asking price. Charlotte admits she got “excited” about the building’s potential, but it was also a big gamble since they weren’t sure they’d be able to get planning permission for a change of use. To make the most of the small floor plan, Charlotte and Joey decided to raise the roof and build a second floor, which would include two bedrooms, one an en suite master bedroom with a roll-top bath next to a window looking out to sea. This work was handed over to the professionals and required more time and expense than expected. But once the new roof was finished and the second-floor structure installed, it was time to get started on the interior. One important step in this process was to insulate the property and for this Charlotte and Joey decided to use Celotex GA4000 to insulate the building, and it was installed in the floor, walls and roof. Charlotte said they chose Celotex because they’ve used it before in other renovation projects and have always been pleased with its high-quality and durability on site. Celotex GA4000 is a multi-purpose PIR insulation board that's ideal for pitched roof applications. It was supplied in boards measuring 1200 x 2400mm, and Charlotte was able to cut them to size using a handsaw. Charlotte explained: “Because we used so much of it throughout the property, cutting and fitting it was almost second nature towards the end of the build. “I liked the fact that there was little mess or dust when cutting it, and that it didn’t bend or collapse when it was fitted in the ceiling –it’s a hard enough job as it is!” The insulation boards were easily attached under the rafters, and then they were covered and painted over for a seamless finish. Once the project was complete, Charlotte and Joey considered selling it. The house, now called Harbour Lights, was valued at nearly £600,000 and was listed as one of Coast Magazine’s 9 Homes to Buy Beside the Sea in January 2017. However the couple has since decided to keep the property and let it out as a holiday home. For a range of specification tools, elearning video tutorials and more, visit: celotex.co.uk/members A loo with a view Situated at the curve of the bay, the ramshackle building was built in 1771 and served as a fishermen’s net store for more than 100 years. It was converted into a public toilet after the war


RCI April 2017
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