Table R301.2, Climatic and Geographic Design Criteria, of the IRC, is hereby amended by modifying said table and adding footnote * as follows :
Table R301.2, Climatic and Geographic Design Criteria
Ground Snow Load | Wind Design | Seismic Design Category | Subject To Damage From | Winter | Flood Hazards | ||||||||
Speed MPH | Topo Effects | Special Wind | Wind Debris | Weathering | Frost Line Depth | Termite | Design Temp | Ice Barrier Req'd. | NFIP Adoption | Air Freezing Index | Mean Annual Temp. | ||
*30 psf | 115 (51) | No | No | No | A | Severe | 42” | No | - 5º F | Yes | 1-Feb-19 | 1833 | 48.6 |
See Manual J for HVAC Design Criteria | |||||||||||||
* minimum flat roof snow load 24 PSF