What is Type 3a construction?

What is Type 3a construction?

TYPE IIIA (ISO 2): A combination of building construction comprised of exterior walls of masonry or concrete and roof/floors of combustible material that has been treated to have at least a 1-hr fire resistance rating.

What is the difference between Type IIIA and IIIB construction?

Type IIIA requires 1 hour fire resistance throughout except that exterior bearing walls require no less than 2 hour fire resistive construction. Type IIIB has no fire resistance requirements, except for exterior bearing walls, which has the same requirements as Type IIIA.

What is the difference between Type VA and VB construction?

A Type V-A construction classification would require structural framing and bearing walls to have a one-hour fire-resistance rating, meaning a fire would take an hour to burn through the wall. Type V-B construction would have no fire-resistance rating necessary, making it the most combustible and susceptible to fire.

What is Type 2b construction?

TYPE II-B–Unprotected Non-Combustible (Most common type of non-combustible construction used in commercial buildings). Building constructed of non-combustible materials but these materials have no fire resistance.

What is a Class 3 structure?

Structure Class III: Structures that due to height, use or location represent a substantial hazard to human life and/or damage to property in the event of failure and/or used primarily for essential communications.

What is the difference between Type A and Type B construction?

The main difference between the Type I-A and B is that the Type I-B building has exterior walls and a structural frame that only has to resist fire for two hours, rather than the three hours of the Type I-A.

What is Type A or B construction?

“Type A” buildings are ambitious, rigidly organized, highly status-conscious, sensitive, impatient, anxious, proactive, and concerned with time management. “Type B” buildings live at a lower stress level and typically work steadily, enjoying achievement but not becoming stressed when they do not achieve.

What are types 3/4 and 5 construction?

Type 3: Ordinary: New or old buildings with non-combustible walls but a wood-framed roof. Type 4: Heavy Timber: Older buildings with thick lumber used for structural elements. Type 5: Wood-framed: Many modern buildings with combustible framing and roofs.

WHAT IS II B construction?

TYPE II-B–Unprotected Non-Combustible (Most common type of non-combustible construction used in commercial buildings). Building constructed of non-combustible materials but these materials have no fire resistance. Exterior Walls* No fire resistance for structural frame, floors, ceilings, or roofs.