SAP calculations explained
Understand what SAP calculations involve and when your project may need them.
Read guide: SAP calculations explainedGuides
Clear explanations of energy assessments, building regulations and the calculations your project may need.
Home Energy Model explained
Read about the Home Energy Model and how it relates to SAP.
Read guide: Home Energy Model explained
Why is my SAP calculation failing on fabric energy efficiency?
Understand DFEE and TFEE, find out what affects your fabric result and compare practical improvements before spending money on your build.
Read guide: Why is my SAP calculation failing on fabric energy efficiency?