Bentham Primary School, Ingleton
New Build Primary School, Photovoltaic Installation and Sedum Roof
In order to satisfy North Yorkshire’s sustainability policy the new school being built at Bentham needed to achieve a “Very Good” BREEAM rating. Part of this entailed a Simplified Building Energy Model (SBEM) calculation.
A computer programme could be used to assess how energy efficient the property will be, based on the buildings energy usage and carbon dioxide emissions from month to month.
The buildings were modelled using IESVE software which allowed our Mechanical and Electrical services team to work closely together with the architects at a very early stage into the design process. A Passive solar design was evolved that would help with the BREEAM accreditation. The introduction of shading devices also assisted with the summer time temperature analysis to satisfy guidance within Building Bulletin 101.
A living sedum roof was installed across all the classrooms that provided extremely good thermal insulation to the classrooms below as well as providing sound proofing from any rain.
Photovoltaic (PV) modules were also introduced on the south facing hall roof using a metal frame. These modules convert solar radiation into electricity.
Water shut off devices were also incorporated throughout along with a water leak detection system to ensure “Water Efficiency” measures were followed in order to comply with BREEAM Wat 01 and 02 criteria.
The Passive solar design allowed the building to be designed with the optimum orientation and glazing ratios for passive solar design to reduce heating and cooling loads.
The living sedum roof installation enhanced the biodiversity of the site as well as improving the thermal mass of the roof structure, which reduced the heating and cooling loads of the spaces and improved the internal acoustics.
The power generated using Photovoltaic (PV) modules replaces electricity, which would otherwise be purchased at commercial rates and this is also exported back to the grid when not used.
A monitoring system was installed in the foyer, so the school children are aware of the contribution that the Solar PV system makes, which provided an excellent teaching resource.