Elevator Hoistway Smoke Pressurization Calculator

Size dedicated elevator hoistway pressurization fans and motorized top-of-shaft smoke relief vents under IBC Section 3004 & NFPA 92: calculate positive pressure airflow (maintaining 0.10" to 0.25" WC positive pressure relative to building core to prevent stack effect smoke movement during fires), motorized relief damper sizing, and life safety elevator mechanical margins.