TECHNICAL BULLETIN
ISSUE 32 AUGUST 2019
SAP 10 CHANGES TO HEATING PATTERNS MATT DR LISA NALLY BLAKE FOUNDER, TECHNICAL SURVEY MANAGER, BOOKER SAVA
In our last Technical Bulletin, we described the changes to the hot water calculations for SAP 10. In this issue, we will be taking a closer look at the changes to the heating patterns. Background
Figure 1 – SAP model heating calculation (simplified)
As explained in our previous article, the Standard Assessment Procedure (SAP) methodology maintained by BRE is due to be defined and adopted following changes to the building regulations. Therefore, the current version, SAP 20121 , will eventually be superseded by SAP 102.
Heating patterns in SAP
In simplified terms, you can see in figure 1 (right) how the heating patterns fit into the SAP calculation.
1 https://www.bregroup.com/sap/ standard-assessment-proceduresap-2012/ 2 https://www.bregroup.com/sap/sap10/
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