BREEAM Thermal Comfort Analysis
Back to Services Page
BREEAM Thermal Comfort Analysis
BREEAM’s thermal comfort credit rewards modelling done early, not paperwork done late. We deliver PMV and PPD analysis to ISO 7730 for the occupied zones, plus a future-climate scenario to demonstrate the building stays comfortable as the climate shifts — documented to the credit requirements of BREEAM International New Construction and BREEAM ES Nueva Construcción. Targeting LEED or WELL on the same building? One model serves all three pathways.
What we deliver.
PMV and PPD per ISO 7730 modelled at zone and building level. Operative temperature visualisation. Clothing schedules and setpoint temperatures aligned to the BREEAM scheme. Daily and seasonal performance graphs. Future weather file scenarios available on request.
Well With LEED • One Model, Two Pathways
Most premium projects target LEED and WELL in parallel. We structure a single source of truth simulation that serves both scopes without doubling the modelling effort. Same building geometry. Same HVAC. Two reviewer pathways. Both reviewer ready.
What are PMV and PPD?
PMV is a 7 point scale prediction of thermal sensation, minus 3 cold to plus 3 hot, per ISO 7730. PPD is the percentage of occupants expected to be thermally uncomfortable at a given PMV. ISO 7730 Category B asks for PMV between minus 0.5 and plus 0.5 and PPD at or below 10 percent.
Adaptive comfort or PMV. Which model applies?
Adaptive comfort applies to naturally ventilated spaces. PMV applies to mechanically conditioned spaces. For most LEED, WELL and BREEAM projects in mechanically conditioned buildings, PMV is the correct model.
Why is PPD compliance harder on large zone count buildings?
Because each zone has different HVAC behaviour, internal load profile and envelope exposure. A single zone breaching PPD over 10 percent can fail the credit. On large projects we tune HVAC distribution, setpoint schedules and zone grouping until building wide compliance is reached.
Do you run future weather file simulations?
Yes. On request we run thermal comfort simulation against predicted climate change scenarios using future weather files.
