Quality

Part L Air Tightness What is Air Tightness and its Relevance to Building Performance? Air tightness is the measurement of how well a building envelope can prevent air from leaking out. It is an important energy performance indicator for complying…

Part L U values (2023 and more) What are U-Values in the Part L Regulations (2023 updates)? Part L U-values, otherwise known as thermal resistance is the rate of transfer of heat through a material, structure or matter and it…

Part L Lighting What is the Role of Lighting in Part L Compliance? Lighting, being one of the main systems that affects electricity consumption, is a factor to consider in order to comply with Part L regulations. It accounts for…

Part L Calculations Part L Calculations Intro The calculations assess the key and important components of Part L Calculations such as the thermal insulation and air tightness of insulating materials for walls, floors, and windows (building envelope), thermal bridging in…

How to become a Clerk of Works Read this comprehensive guide to understand how to become a clerk of works, and get access to some free and proven clerk of works resources. How to become a Clerk of Works? Learning…

What is a Clerk of Works? This article answers the question “what is a clerk of works?”, and also provides you with more context, detail and resources about clerks of works and their purpose in the construction industry. What is…

Part L Regulations Windows The Role of Windows in Part L and Energy Efficiency Windows are great contributors in heat loss and gain in buildings and that’s why Part L regulations contain key requirements for windows, most specifically regarding their…

Part L explained Part L Explained: Overview of Buildings Regulations Part L is a section of the UK’s Building Regulations that addresses how to conserve energy in new and existing buildings, for both domestic and non-domestic use, and focuses on…