Use this checklist for naturally ventilated spaces prior to construction to review plans for prerequisite compliance:Are all floor areas within 25 feet of an operable window?Do all floor areas within 25 feet of an operable window appear have 4 ft2 of open

Use this checklist for naturally ventilated spaces prior to construction to review plans for prerequisite compliance:

• Are all floor areas within 25 feet of an operable window?
• Do all floor areas within 25 feet of an operable window appear have 4 ft² of opening per 100 ft² of floor area?
• Is fresh outdoor air mechanically supplied and exhausted for all regularly occupied spaces beyond 25 feet of an operable window?
• Do any corridors or entryways fall outside of these naturally or mechanically ventilated areas? If so, develop the design further to supply sufficient ventilation.