
102 Forensic Engineering Fundamentals
Ventilation rates in kitchens of residential buildings shall be 100 cfm and in bath-
rooms they shall be 50 cfm. Air inlets that are part of the ventilation system design
must be located a minimum of 10 away from stacks, vents, exhaust hoods, or vehicle
exhausts. Ventilation openings may be as close as 3 from roof vents or dryer exhausts.
Garages adjacent to occupied spaces must be air sealed to prevent unwanted exhaust
gases from vehicles entering the living areas.
Building Materials
Building materials have a great inuence and eect on the indoor environment. Typical
materials in the interior of a bui ...