Hap V5.11 ((full)) Jun 2026

Generates reports for sizing air system components like coils and fans based on design load output. LEED Compliance:

. Unlike the newer v6.0 series that uses 3D modeling and the Heat Balance Method, v5.11 relies on the ASHRAE Transfer Function Method (TFM) for calculations. Core Capabilities hap v5.11

HAP v5.11 runs within the HEC-HMS user interface or in headless mode (no GUI). It is built on: Generates reports for sizing air system components like

For those pursuing LEED or energy codes, v5.11 now includes updated baseline system types per ASHRAE 90.1-2019 (and 2022 in beta). The software automatically generates: HAP v5.11 is still used in:

While powerful, HAP v5.11 has important constraints:

Despite its age, HAP v5.11 is still used in:

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