Assertion: ventilation | /r/HasProperty | reduced by code
Facets:
value: in certain extreme northern climates
type: LOCATION
Source sentences:
text: In certain extreme northern climates (Climate Zones 7 and 8), if the home has a qualifying vapor barrier behind its ceilings, ventilation can be reduced by code to as little as 1 square foot per 300 square feet of attic floor space.