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
![Heat loss measuring report front page](https://cdn.sanity.io/images/m16cqsyp/production/33c4b5c2ef3fe2759347c27a598b731fb646d8d6-550x778.png?w=520&auto=format)
![Report cover image](https://cdn.sanity.io/images/m16cqsyp/production/094598089aad27ce9f20d6422093b6876bedbdd0-785x1114.png?w=520&auto=format)
![HTC of different houses](https://cdn.sanity.io/images/m16cqsyp/production/a985d2e0f72ab687be378881e71cb5745a1fddd9-2560x1440.jpg?w=520&auto=format)
![Pulse system in a home](https://cdn.sanity.io/images/m16cqsyp/production/3b4d5cb325e21d361dfd33dce95402a1ad01e7d7-2526x1787.png?w=520&auto=format)
Rachel Brain![Rachel Brain](https://cdn.sanity.io/images/m16cqsyp/production/347442c7d39eea8583940d450fc7422da4ed585c-2584x4592.jpg?rect=0,1332,2572,2572&w=40&h=40&fit=crop&auto=format)
![Rachel Brain](https://cdn.sanity.io/images/m16cqsyp/production/347442c7d39eea8583940d450fc7422da4ed585c-2584x4592.jpg?rect=0,1332,2572,2572&w=40&h=40&fit=crop&auto=format)
Rachel Brain
![Streetscape](https://cdn.sanity.io/images/m16cqsyp/production/347cdd041ff3588265eb85bb1d3c73f665556867-2892x2766.jpg?w=520&auto=format)
![Air tightness tester using Pulse for PAS 2035](https://cdn.sanity.io/images/m16cqsyp/production/f3870252b641538989b2117965668806e8123ffa-5000x3333.jpg?w=520&auto=format)
![Checking air leakage paths using Leak Checker under PAS 2035](https://cdn.sanity.io/images/m16cqsyp/production/23086712060a5abc848c79c10c77d8caa40f9234-5000x3333.jpg?w=520&auto=format)
![Illustration of heat loss paths in a house](https://cdn.sanity.io/images/m16cqsyp/production/6444708042c714080fac9412d2987d2c22af8f74-2526x1786.png?w=520&auto=format)
![Drilling bore hole for ground source heat pump](https://cdn.sanity.io/images/m16cqsyp/production/23b8a1da742486a453596f2e415ffe715b682a46-612x408.jpg?w=520&auto=format)
Dr Zachary Gill![Dr Zachary Gill](https://cdn.sanity.io/images/m16cqsyp/production/8e9c641d5730e437614a22ed1cc379b4ddf44680-900x900.png?w=40&h=40&fit=crop&auto=format)
![Dr Zachary Gill](https://cdn.sanity.io/images/m16cqsyp/production/8e9c641d5730e437614a22ed1cc379b4ddf44680-900x900.png?w=40&h=40&fit=crop&auto=format)
Dr Zachary Gill
![Treadgold House prior to retrofit works](https://cdn.sanity.io/images/m16cqsyp/production/b9fea4c9efe624585a3a5bcdfc08748163c2f80c-4640x3472.jpg?w=520&auto=format)