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Legal Definition

BUILDING ACT Article 50 (Fireproof Structures and Fireproof Walls of Buildings)
Main structural parts of the buildings prescribed by Presidential Decree, including facilities for cultural activities and assembly, medical facilities, and multi-family housing, shall be fireproof structures in accordance with the standards prescribed by Ordinance of the Ministry of Land, Infrastructure and Transport.  <Amended by Act No. 11690, Mar. 23, 2013>


ENFORCEMENT DECREE OF THE BUILDING ACT Article 2 (Definitions)
The term "fire-resistant structure" means a structure that has fire resistant performance, and meets the standards determined by Ordinance of the Ministry of Land, Infrastructure and Transport.


Scope of Application
BUILDING ACT Article 50 & ENFORCEMENT DECREE OF THE BUILDING ACT Article 56

Use

Application

A building used for performance halls or religious assembly facilities

among Class 2 neighborhood living facilities

The total floor area used for such purpose exceeds 300 square meters

 building used for cultural and assembly facilities

(excluding exhibition halls, and zoological and botanical gardens),

religious facilities, or bar business among amusement facilities or funeral facilities

 The total floor area used for such purpose exceeds 200 square meters

(in cases of outdoor auditorium, 1,000 square meters);

 A building used for exhibition halls or zoological and botanical gardens among cultural and 

assembly facilities, sales facilities, transportation facilities, gymnasiums or auditoriums established 

in education and research facilities or training facilities, gymnasiums and playgrounds 

among sports facilities, amusement facilities (excluding those used for bar business), 

warehouse facilities, storage and treatment facilities for hazardous substances, 

motor vehicle-related facilities, broadcasting stations, telegraph and telephone stations 

and movie studios among broadcasting and communication facilities, facilities for cremation 

and for animal cremation among graveyard-related facilities, or tourist resting facilities 

The total floor area used for such purpose exceeds 500 square meters of the total floor area 

A building used for factory

 The total floor area used for such purpose exceeds 500 square meters

 A building, the second floor of which is used for a multi-user house or multi-unit house 

among detached houses, multi-family housing, Class 1 neighborhood living facilities 

(limited to facilities used for medical purposes), communal living facilities 

among Class 2 neighborhood living facilities, medical facilities, children-related facilities 

and welfare facilities for older persons among facilities for older persons and children, 

youth hostels among training facilities, officetels among business facilities, 

lodging facilities or funeral facilities

The total floor area used for such purpose exceeds 400 square meters 

A building with at least three floors and underground floors 

That buildings used for detached houses (excluding multi-user houses and multi-unit houses), 

animal and plant-related facilities, power generating facilities (excluding facilities used for subsidiary 

uses of the power plant), correctional facilities and reformatories, or graveyard-related facilities

(excluding facilities for cremation and for animal cremation) 

and any extension of not exceeding a gross area of 50 square meters used for a control room 

among factories related to the steelindustry shall be excluded.



Performance Standard of Fireproof Structures


Regulations on standards of evacuation and fire protection of buildings Article 3 (8)

Section
Use
WallBeam & ColumnFloorRoof Truss
Outer WallInner Wall
Bearing WallNon-bearing WallBearing WallNon-bearing Wall
Application
Scale

Floors / Height (m)
Flammable Sections
Inflammable Sections
Partition Wall
Shaft Division Wall
General FacilitiesBusiness facilities, sales facilities, military facilities· broadcasting stations ·power stations,· telegraph and telephone stations, movie studios and other similar facilities, communication facilities, tourist resting facilities, sports facilities, cultural and assembly facilities, Class 1&2 neighborhood living facilities, amusement facilities, facilities for cremation among graveyard-related facilities, education and research facilities, welfare facilities motor vehicle-related facilities (except maintenance and repair plant)12/50Above310.5322321
Below210.521.51.5220.5
4/20 Below110.5111110.5
Residential Facilitiesmulti-user house or multi-unit house, official residence among detached houses, multi-family housing lodging facilities, medical facilities12/50Above210.5222321
Below210.5211220.5
4/20 Below110.5111110.5
Industrial Facilitiesfactory, warehouse facilities, maintenance and repair plants among motor vehicle-related facilities, human excreta and garbage treatment plants, storage and treatment facilities for hazardous substances 12/50Above21.50.521.51.5321
Below210.5211220.5
4/20 Below110.5111110.5






Regulations for Hazardous Substance Processing Facilities
 REGULATIONS FOR OCCUPATIONAL SAFETY AND HEALTH
Article 270 (1) Standards on Fireproof Structures   
① Constructing a building in the area with gas or dust explosion hazard, a business owner shall install fireproof structures on the following sections in accordance with Article 230
Appropriate measures should be taken such as inspection and maintenance so that the performance can be maintained at all times. However, if a building is installed automatic fire extinguishing system such as water spray extinguishing system and foam extinguishing system to protect the building more than 2 hours in the event of a fire, it is not necessary to be installed fireproof structures.
1. Beams and columns: Up to the first floor (6 meters if the height of the ground floor exceeds 6 meters)
2. Supports for hazardous substances storage or container (except those lower than 30centimeters in height): From the ground to the end of the support
3. Supports for pipes, conduits, etc.: From the ground to the first level (6 meters if the height of the first level exceeds 6 meters)
② Fireproof materials shall meet or exceed the criteria specified by the Korean Industrial Standard under the Industrial Standardization Act.




Related Regulations
> Regulations on standards of evacuation and fire protection of buildings (Decree of the Ministry of Land, Infrastructure and Transport)
> Certification and managerial standards of fire resistant structures (Notification of the Ministry of Land, Infrastructure and Transport)
> On-site inspection check list for fire resistant structures