GBA Logo horizontal Facebook LinkedIn Email Pinterest Twitter Instagram YouTube Icon Navigation Search Icon Main Search Icon Video Play Icon Plus Icon Minus Icon Picture icon Hamburger Icon Close Icon Sorted

Community and Q&A

Ventilation rate

Kevin Mick | Posted in Building Code Questions on

buiding code required ventilation rate for residential 1-2 family
is 15 cfm/person or 0.35 ach living space whichever is greater
what is considered living space
is cellar assessory storage / other included
it ends up being a big number .

GBA Prime

Join the leading community of building science experts

Become a GBA Prime member and get instant access to the latest developments in green building, research, and reports from the field.

Replies

  1. Steve Knapp CZ 3A Georgia | | #1

    Is your cellar connected to the conditioned space? FWIW. Allison Bailes has this article on ventilation rates: https://www.energyvanguard.com/blog/we-need-higher-ventilation-rates-but-how-high/

    We probably need more ventilation than current guidelines call for.

    1. Kevin Mick | | #2

      Hi Steve,
      thanks for article . i like to read his stuff
      Yes the house is (3) story Cellar is open area and conditioned . the house is about 10,000 sf ceiling vary ( 8-11'-6)
      only 8 people. using .35 ach its a lot of O.A
      i was wondering what other people consider living space
      the first floor is the main floor , then bedroom on second floor
      using 15 cfm/person 120 cfm using 0.35 ach about 375 cfm . big difference

Log in or create an account to post an answer.

Community

Recent Questions and Replies

  • |
  • |
  • |
  • |