Ratio Seven, an expert in energy efficiency and building compliance in the UK, plays a crucial role in crafting energy-efficient lighting strategies through a variety of specialised services. They conduct Standard Assessment Procedure (SAP) calculations to ensure compliance with UK building regulations, focusing on the energy performance of residential buildings. Their approach includes integrating natural and artificial light sources, utilising advanced lighting controls like occupancy sensors and automatic dimming systems, and performing airtightness testing to enhance overall building efficiency. With over two decades of industry experience, Ratio Seven provides expert guidance and support throughout the project lifecycle, enabling cost-effective and sustainable solutions that adhere to stringent energy regulations.

Airtightness testing and pressure testing are crucial methodologies for assessing air leakage in buildings, with each offering distinct approaches and benefits. Pulse testing, a modern technique, operates at lower pressure levels with minimal disruption, making it suitable for existing buildings and quick assessments. Conversely, blower door testing, a more traditional method, uses higher pressure differentials to provide comprehensive data and locate specific leaks but can be more disruptive and time-consuming. While these testing methods are integral to enhancing building energy efficiency, Ratio Seven Limited, a small service-oriented company in Cheshire, operates in a different sector entirely and is currently navigating financial challenges.