Energy Performance Gap
The energy performance gap is the difference between the anticipated or predicted energy performance of a building at the design stage and the actual performance once built or occupied. These case studies and technical analysis explore real-world use cases of air tightness testing, building performance evaluation and post-occupancy evaluation. All of our products are designed to measure building performance accurately and help minimise the performance gap through testing and quality control.
Recent case studies and technical reports
Measurement technology improves surveying
The number of homes with an Energy Efficiency Rating of C or above was 46 per cent in 2022. This is up from 13 per cent in 2010, so whilst things are moving in the right direction much more must be done to meet net-zero targets by 2050.
Ventilation Assessment in Cavity Wall Insulation
Pulse testing was used to inform the ventilation requirements associated with the installation of cavity wall insulation for a semi-detached bungalow, demonstrating that the house had sufficient infiltration to provide adequate ventilation.
Ground Source Heat Pump Sizing Using SmartHTC
Accurately sizing a heat pump is important to achieving an efficient system. This case study analyses how SmartHTC was used to measure the actual thermal performance of the dwelling rather than relying solely on design calculations.
Dr Zachary Gill
AirEx Smart Airbrick Impact Validation
AirEx Floorvent is a smart airbrick that claims to deliver significant heat loss reductions through floors. This project analyses how SmartHTC and U-value measurements were used to validate its performance across 115 properties.
Dr Richard Jack