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NBT Helps Islington Nursery Expansion
Natural Building Technologies’ (NBT) high performance building and render systems have been specified for the complete refurbishment and significant extension of the North Islington Nursery School & Children’s Centre in London. Selected by Project 5 Architects, NBT’s ThermoPlan blocks and renders provided the sustainable credentials required by the planning authorities.
One of London’s oldest nurseries, North Islington has 95 nursery places for children aged between three months and five years. As part of Islington Council’s plans to improve the quality of life for children and families in the local area, the nursery school has been developed and upgraded to incorporate a children’s centre. The provision of a range of additional support services, including healthcare, parenting advice and family support, enables the new facilities to further meet the needs of the local community.
To comply with the ‘green’ credentials required in the council’s planning permission for the expansion of North Islington Nursery School, sustainable building materials needed to be identified. As such, Project 5 Architects specified NBT’s ThermoPlan solid wall building system for the extension to the centre. A honeycomb fired-clay building block system, ThermoPlan provides a simple and robust construction method. Additionally, NBT’s ThermoPlan system offers excellent acoustic performance, over-heating control due to its high thermal mass, as well as very high levels of thermal insulation.
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Mary Plowman, Partner at Project 5 Architects, comments: “NBT’s ThermoPlan system met the sustainability and performance credentials required by the council for the expansion of the North Islington Nursery School & Children’s Centre. Compared to conventional construction methods, NBT’s ThermoPlan system was straightforward and easy to detail architecturally. Moreover, the thin-bed joints on the blocks enabled the building work to proceed very quickly, ensuring the tight deadlines were adhered to.”
To provide air and weather-tightness and additional thermal insulation, Projects 5 Architects also specified two of NBT’s Baumit renders and plasters, which are recommended for use with the ThermoPlan system. Incorporating the benefits of lime mineral products, MP69 render was installed on the external walls of the building. A lightweight, fully breathable, mineral-pore render, which forms a waterproof surface, MP69 also offers high elastic performance to safeguard against shrinkage cracking.
Completing the construction work at the nursery, the internal surfaces of the ThermoPlan blocks were ‘hard-plastered’ with Baumit RK389 pure lime render. A natural, eminently hydraulic lime plaster, RK389 has a cement-free formulation, making it ideal for use where building and human health issues are important. A healthier alternative to gypsum or cement-bound products, RK389 can fulfill the function of a lime/cement bound render or mortar.
