fire rating
Combustion endurance measure
A fire rating measures how long a building material, door, wall, or other component can withstand fire before failing.
Ratings are expressed in time increments—typically 20 minutes to 4 hours: a 2-hour fire rating, fire-rated drywall.
Building codes specify minimum fire ratings for walls, doors, and structural elements based on occupancy type and proximity to property lines.
- building codesLaws governing structure safety
- intumescentSwells from heat exposure
- flame retardantSubstance inhibiting ignition
- non-combustibleUnable to catch fire
- burn throughConsume rapidly, completely
sprinkler systems · escape routes · compartmentalization · heat conductivity · certification · thermal insulation · compliance · hours · melting point · assembly · gypsum · structural integrity · rated · drywall · construction · protection · suppression · egress
- Building Safetysmoke detector, emergency exit, sprinkler system, exit sign, smoke alarm
- fire safetysmoke detectors, evacuation plan, smoke alarms, sprinklers, assembly point
- ratingsone star, five stars, two stars, three stars, four stars
- fire protectionflame retardant, fireproofing, firestops, sprinkler system, smoke alarm
- building codesIRC, building code, safety codes, construction codes, electrical codes
- building specsblueprints, blueprint, floor plans, floor plan, elevations
safety certification vs. hazard classification
fire ratingfire risk assessment
Analysis of combustion hazards