Sitting on the North West’s “golf coast”, with unimpaired views of Anthony Gormley statues and the sea beyond, the prestigious and elegantly designed Burbo Point development sets a new benchmark for apartment blocks. For such an impressive development, the thermal performance of the building was of vital importance. With that in mind, highly efficient Celotex XR3000 insulation was specified as the roof insulation.

Featuring Merseyside’s most expensive apartment, the £1.7 million penthouse is the crowning glory of the development, a joint venture by Blythe Homes Plc and Ultimate Homes and built by Felton Construction. Below it are 21 luxurious apartments, designed and fitted by some of Europe’s top designers, one step from the beach and set in a thriving village community with a cosmopolitan choice of bars, shops and restaurants.

For such a prestigious development, RAL Architects paid careful attention to the specification materials. With performance and quality a high priority, Celotex was the natural choice of insulation for the inter-rafter space.

RAL Architects specified Celotex’s XR3000 for the internal roof space having been won over by its excellent thermal properties, which makes it a consistently popular choice with architects and specifiers across the country. The 150mm thick polyisocyanurate (PIR) foil faced boards, with an R-value of 6.50, outperform many other insulators, including mineral wools.

With such effective insulation per mm, it is ideal for minimising the shell thickness whilst ensuring that the building’s thermal envelope provides optimal energy efficiency. At Burbo Point, the Celotex insulation solution was used to maximise roof space in the stylish loft apartments for a more spacious and open effect.

The only PIR insulation to be rated A+ by the Green Guide to Specification, the Celotex insulation boards are a proven means of reducing heating needs – thereby lessening carbon emissions and lowering costs.

Fitted between roofing rafters by specialist contractor, Thexton Plastering & Dry Linings Limited, the Celotex boards were exceptionally simple to install. Though durable, they are extremely lightweight and easy to cut to fit. After being shaped, the boards were simply slotted into place between the rafters where they were fixed with the innovative Celotex Insulation Clip.

The clip has been designed to allow the boards to be fixed between rafters and joists without the need for nails, screws or battens. The points of the clips were slid into the sides of the insulation and then fitted into the timber frame of the roof. This was then covered with plasterboard to complete the interior, and provide extra support for the insulation within.

RAL Architects commented, “This scheme utilised modern methods of construction, with high performance materials specified throughout to respond to the aggressive nature of the environment in which the building is located – overlooking the Irish Sea. Specifying Celotex products ensured our prerequisite of using high quality materials was maintained.”

Now opened to a great deal of fanfare and media attention, the first owners are preparing to move in to the stunning residences at Burbo Point. They will notice the high quality finishes, the Porcelanosa bathrooms and Miele bespoke kitchen appliances, but one key element of their homes will be hidden to them – the Celotex XR3000 insulation that offers supreme energy efficiency, lowering their heating bills and protecting the environment for decades to come.

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