GB 50222-2017 Code for Fire Protection Design of Building Interior Decoration

General Provisions

• 第 1.0.1 条This code is formulated to standardize interior decoration design of buildings, reduce fire hazards, and prot…
• 第 1.0.2 条This code applies to interior decoration design of industrial and civil buildings. Hotel buildings are public…
• 第 1.0.3 条Interior decoration design of buildings should actively use non combustible and flame retardant materials, an…
• 第 1.0.4 条Interior decoration design of buildings shall strictly control the combustion performance grade of decoration…
• 第 1.0.5 条Interior decoration design shall not arbitrarily change the setting positions of fire protection facilities, …
• 第 1.0.6 条Interior decoration design shall not affect the effective width and unobstructed passage of evacuation walkwa…
• 第 1.1 条Note: The specific data parameters in the above clauses (such as Class A, m) are mainly based on the general …

Terminology

• 第 2.0.1 条Decorative materials : refer to decorative materials used for interior surfaces such as walls, floors, and ce…
• 第 2.0.2 条Combustion performance rating : Decorative materials are classified by combustion performance into Class A (n…
• 第 2.0.3 条Class A material : refers to materials that hardly combust when exposed to open flame or high temperature in …
• 第 2.0.4 条Class B1 material : refers to materials that are difficult to ignite and not prone to spread when exposed to …
• 第 2.0.5 条Class B2 material : refers to materials that readily ignite when exposed to open flame or high temperature in…
• 第 2.0.6 条B3 class material : refers to flammable materials, such as ordinary polyurethane foam, textiles without flame…
• 第 2.0.7 条Fixed furniture : refers to furniture that is fixedly connected to the main building structure or not easily …
• 第 2.0.8 条Decorative fabrics : refer to curtains, draperies, bedspreads, furniture upholstery, and other textiles used …
• 第 2.0.9 条Partition : refers to non load bearing components used to divide interior spaces, such as lightweight partiti…
• 第 2.0.10 条Evacuation corridor : refers to the passage in a building used for occupant evacuation, including hotel corri…
• 第 2.0.11 条Safety exit : refers to doors, stairways, or exits leading directly outdoors that are used for the safe evacu…

Classification and grading of decoration materials

• 第 3.0.1 条Decorative materials are classified by application area and function into: ceilings, walls, floors, partition…
• 第 3.0.2 条Decorative materials are classified into four combustion performance grades: Grade A (non combustible), Grade…
• 第 3.0.4 条Paper faced gypsum board and mineral wool acoustic board installed on steel studs may be used as Grade A deco…
• 第 3.0.5 条When plywood surfaces are coated with Grade I decorative fire retardant coatings, they may be used as Class B…
• 第 3.0.6 条Paper and fabric wallcoverings with a mass per unit area of less than 300 g/m², when directly adhered to Clas…
• 第 3.0.7 条Inorganic decorative coatings applied to Grade A substrates may be used as Grade A decoration materials; orga…
• 第 3.0.8 条When different decorative materials are used for multi layer decoration, the combustion performance grade of …

Civil buildings

• 第 4.0.1 条In hotel buildings (guesthouses), the ceiling, wall, and floor finish materials of evacuation corridors and s…
• 第 4.0.2 条In hotel buildings, the ceilings, walls, and floors of evacuation stairwells and their vestibules shall all u…
• 第 4.0.3 条The ceiling, walls, and floor of kitchens in hotel buildings shall all use Class A decoration materials.
• 第 4.0.4 条For equipment rooms in hotel buildings such as fire pump rooms, smoke exhaust fan rooms, electrical distribut…
• 第 4.0.5 条In hotel buildings, all interior finishes of storage rooms where combustibles are kept shall be Class A mater…
• 第 4.0.6 条In hotel buildings, the partition walls on both sides of an evacuation corridor shall have a combustion perfo…
• 第 4.0.7 条Doors of evacuation stairwells and their vestibules in hotel buildings shall be Class B fire doors (fire resi…
• 第 4.0.8 条In hotel buildings, the decoration materials of the fire elevator lobby shall be Class A, and the doors of th…
• 第 4.0.9 条When song and dance entertainment and amusement venues (such as KTVs, dance halls, etc.) in hotel buildings a…
• 第 4.0.10 条For rooms housing fire protection facilities such as automatic sprinkler systems and automatic fire alarm sys…
• 第 4.0.11 条In the evacuation corridors and safety exit lobbies of basements or semi basements in hotel buildings, the ce…
• 第 4.0.12 条When a central air conditioning system is installed in a hotel building, the partition walls on both sides of…
• 第 4.0.13 条Combustion performance grade requirements for interior decoration materials in hotel buildings:<br High rise …
• 第 4.0.14 条In hotel buildings, the wall, floor, and ceiling finish materials of evacuation corridors, safety exits, evac…
• 第 4.0.15 条In hotel buildings, for areas where the combustion performance grade of interior decoration materials is not …
• 第 4.0.16 条The installation of fire emergency lighting and evacuation indication signs in hotel buildings shall comply w…

Fire Protection Facilities and Electrical

• 第 4.0.1 条For equipment rooms such as fire pump rooms, smoke exhaust fan rooms, fixed fire extinguishing system cylinde…
• 第 4.0.2 条The ceiling of evacuation corridors and safety exit lobbies shall use Grade A decoration materials, and other…
• 第 4.0.3 条For horizontal evacuation corridors and safety exit lobbies in above ground buildings, the ceiling finish mat…
• 第 4.0.4 条For the evacuation corridors and safety exit lobbies of underground civil buildings (including underground ho…
• 第 4.0.6 条Ceilings, walls, and floors in building kitchens (including hotel kitchens) shall all use Class A decoration …
• 第 4.0.7 条When song and dance entertainment, screening and amusement venues (such as KTVs, dance halls, etc. attached t…
• 第 4.0.8 条The continuous power supply duration of the backup power for fire emergency lighting and evacuation indicatio…
• 第 4.0.9 条The illuminance of fire emergency lighting fixtures in buildings shall comply with: the minimum horizontal il…
• 第 4.0.10 条When distribution lines in a building are installed in a concealed ceiling or suspended ceiling containing co…
• 第 4.0.11 条Cable shafts and pipe shafts in buildings shall be sealed at each floor slab with non combustible materials o…
• 第 4.0.12 条Fire protection power distribution circuits in buildings (such as power supply circuits for fire pumps, smoke…

Fire protection facilities and electrical

• 第 4.0.5 条For important rooms such as the fire control room, the ceiling and walls shall use Class A decoration materia…

Engineering reference only — verify against project conditions and the latest codes.