I understand that there were not any requirements regarding TAB in LEED 2009 -- is this still true for v4? Just want to confirm that there are no issues with having the balancer contracted under our construction manager.
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Dave Hubka
Practice Leader - SustainabilityEUA
LEEDuser Expert
494 thumbs up
June 4, 2021 - 2:50 pm
LEED v4 does not have a contract language with respect to the balancing contractor and who they can/cannot be contracted through.
Mark Laitysnyder
December 19, 2023 - 4:10 pm
Dave,
Is there any language about the amount of TAB verification? Like a percentage or something?
Dave Hubka
Practice Leader - SustainabilityEUA
LEEDuser Expert
494 thumbs up
December 19, 2023 - 5:33 pm
LEED does not go into that level of detail in regards to balancing.....but remembering back in my HVAC design days a long time ago, I never recall a project that 'sampled' the test and balancing. Every system level (e.g. air handling units) every zone level (e.g. variable air volume boxes) and every diffuser/fan/pump were included in the balancing.
Commissioning tends to sample 10% to 20% of all zone level equipment while commissioning all system level equipment. Commissioning Authority will probably spot check airflows at some of the diffusers/grilles.