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RCI Feb 2018

CLADDING & SHEETING Greenwich Peninsula set to benefit from Frametite airtightness system The construction of a £45 million all-through school on the Greenwich Peninsula in London will have the Frametite air barrier system from the A. Proctor Group installed. Designed by architects Penoyre & Prasad, the ‘St Mary Magdalene C of E School’ will provide educational facilities for up to 1,646 children from ages 3 to 19, as well as around 200 staff. Part of one of the largest regeneration projects in London, the development includes facilities for nursery, primary, secondary and sixth form education, along with community-use sports facilities and landscaping. BAM Construction has been chosen to build and manage the project which spans approximately two hectares. The development aims to reach BREEAM ‘excellent’ assessment and to achieve a 35% reduction of carbon dioxide emissions above building regulation requirements. Sub-contractor Bellwood Interiors, required a high-quality air tightness membrane and chose the Frametite System as an external air 050 FEBRUARY 2018 RCIMAG.COM barrier and alternative to a traditional standard breather membrane with EDPM for the steel detailing. The Frametite System comprises Frametite, a low-resistance vapour permeable air barrier for walls, plus Wraptite Tape. In addition, Wraptite selfadhesive membrane was applied to the external envelope in continuous pieces. Wraptite is reportedly the only selfadhering vapour permeable air barrier certified by the BBA and combines the properties of vapourpermeability and airtightness in one self-adhering membrane. This approach saves on both the labour and material costs associated with achieving the demands of energy efficiency in buildings. Mark Nixon, managing director of Bellwood Interiors, commented: “We have been delighted with the Frametite System and with the self-adhesive Wraptite membrane which has proven really easy to use, robust and has speeded up the installation process. We will certainly be recommending the system on future projects without hesitation.” Unlike internal air barriers, which can be complex and costly to install due to the need to accommodate building services such as electrical, lighting, heating and drainage systems, positioning an air barrier on the outside of the insulation simplifies the process of maintaining the envelope’s integrity as there are less building services and structural penetrations to be sealed. By reducing the likelihood of potential failures to meet designed airtightness levels, the Frametite System helps ensure “as-designed” performance, narrowing the performance gap between asdesigned and actual energy performance. www.proctorgroup.com T R Freeman has completed the roofing and cladding element of a primary school in Houlton. Appointed by lead contractor Stepnell, T R Freeman installed in excess of 660m² of Tecu Oxid copper roofing to the main hall, small hall and two lantern roofs. Working with Van Heyningen and Haward Architects (VHH) striking design, Tecu Oxid copper was also used for the cladding on the hall walls, lantern walls and flue wall. In contrast, the flat roof consisted of Resitrix SKW – a light grey selfadhered EPDM rubber membrane. One of the most complicated elements of the development was the curved, copper hyperbolic paraboloid / saddle roof over the main hall, which was said to give a dynamic and futuristic feeling to the design of the building. Gary Webb, pre-construction director of T R Freeman, said: “This exceptional primary school building will be set to serve the first wave of residents in the new township of Houlton – a 1,200-acre phased urban extension on the east of Rugby. The materials and design of the school were chosen to set the tone for the schools and buildings which will follow.” During the construction of the build, T R Freeman’s experience and skills were called upon to assist with obstacles as they arose. One such instance was in designing and installing a multi-span 159mm steel deck with a double curved steel structure and not knowing until installation if the deck would flex sufficiently to accommodate the curve of the steel. Throughout the duration of the project the management team coordinated all activities on site between the company, contractors and individuals to ensure that all the requirements of our BS OHSAS 18001:2007 Occupational Health & Safety Management System were met. T R Freeman worked closely with Stepnell to ensure the project was delivered on time and in budget and importantly, to a high standard of workmanship. www.trfreeman.co.uk TR Freeman completes work on primary school


RCI Feb 2018
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