Windows and doors do far more than bring light and access to your home, they play a major role in how well it retains heat. Their performance is measured by one key metric: the U-Value. A U-Value shows the rate of heat transfer through a material, measured per square metre for every degree of temperature…
Category Archives: SAP calculations
SAP Calculations and U-Values: How They Work Together for Compliance
Energy efficiency is at the heart of modern building design. In the UK, every new build, conversion, or extension must meet strict standards under the Building Regulations, and two of the most important metrics in achieving compliance are SAP Calculations and U-Values. While both are used to assess a building’s thermal performance, they measure different…
SAP 10 vs. SAP 2012: Key Differences Developers Must Know
For over a decade, SAP (Standard Assessment Procedure) 2012 was the standard framework for assessing the energy performance of dwellings across the UK. Every developer, architect, and builder relied on it when working to comply with Building Regulations Part L and to secure a valid Energy Performance Certificate (EPC). The energy landscape, however, underwent significant…
What Are SAP Calculations? A Beginner’s Guide
When undertaking a new build construction of properties or an extension on your home, there are a lot of things you need to consider to ensure your building is compliant with all current Building Regulations. One of the most important considerations for your property development is a SAP calculation (Standard Assessment Procedure). If you’re not…
SAP Calculations Infographic – Learn What’s Involved for New Builds
Discover the process of SAP calculations on new build properties: SAP Calculations are used to assess the carbon emissions and annual energy costs of a property and are best undertaken before building work commences. The calculations are based on these key metrics: Elements of structure Heating and hot water system Internal lighting Renewable technologies…





