Profile: Carlisle Building Systems, Inc. manufactures pre-engineered portable buildings, which are factory mutual approved under the trade name of enviro-safe storage buildings. Our products include non fire-rated models, 2-hour fire rated models, 4-hour fire-rated models. Our non-fire rated models include options for explosion relief system, UL listed explosion proof or standard lighting systems, electromechanical explosion proof or standard exhaust ventilation systems, dry chemical fire suppression system, and water sprinkler system. Our 2-hour fire rated models options for lighting package, heating or air conditioning package, electromechanical exhaust ventilation system, selving, dy chemical fire suppression system, and lading ramp. Our 4-hour fire rated models buildings for flammable and combustible liquids. Our building options include structural options, electrical options, fire protection options, temperature control options, and miscellaneous options.