In the grounds of a Grade II Listed Hall, this new multi-purpose space needed to blend in seamlessly with its surrounding. With the Client having a strong desire for sustainable construction, an intricate and detailed report was developed outlining all proposed materials, their performance, environmental impact, and justification for selection.
It was proposed to construct the external walls from Woodcrete blocks, being manufactured from waste timber and fully recyclable, these blocks had excellent thermal values and provided a cost-effective solution. Externally they would be clad with natural, sustainably sourced, stone cladding which reflected the natural limestone used on the existing building. The roof covering selected comprised a natural Zinc standing seam system, having a life expectancy of 100 years with this recyclable product beautifully reflecting the traditional lead roof on the Grade II Listed Hall. Large rooflights were introduced to help maximise natural daylight and form part of a natural ventilation system, featuring automatic opening and closing gear which could be utilised to moderate airflow and temperature.
Internally, in keeping with the sustainable design, a clay plaster render was proposed due to its natural properties and ability to promote a better indoor air quality. Having a through colour pigment finish, the need for painting was eliminated helping reduce maintenance in painting, along with negating toxins and VOCs found in paint. The structural frame was left exposed to reflect the environmentally friendly construction, comprising a Glulam portal frame. A natural cork floor was identified as the perfect floor covering, having excellent acoustic, wearing and hygienic properties making it ideal for any use of the multi-purpose space.
To further enhance the sustainability, the building was backed up by renewable technologies. Thin-film solar technology, a recent advancement in the photovoltaic industry, was proposed. These thin solar panels would lay flat between the standing seam ridges, proving unobtrusive to the eye. Internally, heating was supplied through an air source heat pump, linked to an underfloor heating system to maximise efficiency.