What are the classification of fire doors in fire door specifications?

Doors and windows are one of the indispensable building materials in our renovation process. Fire doors are the most common door in public places. What are the specifications of fire doors ? Next we will take a good look at the fire door specifications .

Fire Door Specification 1, Class A Fire Door

Class A fire doors, also known as fully insulated fire doors, can meet fire and heat insulation and fire integrity requirements at the same time. Fire resistance ratings are 0.5h (Grade C), 1.0h (Grade B), 1.5 h (grade A) and 2.0h, 3.0h.

Fire Door Specification 2 and Class B Fire Door

Class B fire doors, also known as partially insulated fire doors, have a fire-resisting insulation requirement of 0.5 h and fire-resistance integrity ratings of 1.0, 1.5, 2.0 and 3.0 hours, respectively.

Fire Door Specification 3, Class C Fire Door

Class C fire doors, also known as non-insulated fire doors, are not required for their fire-resistance and heat insulation. They only meet the requirements of fire-resistance integrity within the specified fire-resisting time. The fire-resistance integrity grades are 1.0h, 1.5h, and 2.0h, respectively. , 3.0h. In the British BS standard, there are non-insulated fire doors.

GB16809-2008 "Fireproofing window" standard specifies the name, classification and code, specifications and models, technical requirements, test methods, inspection rules, signs, packaging, transportation and storage of fireproof window products. It is applicable to lighting functions in buildings. The steel fire windows, wooden fire windows, and steel-wood composite fire windows, and other fire windows may also be referred to. The new standard corresponds to fire door standards to modify the relevant fire resistance parameters of the fire window. Compared with the 97 standard, the main changes are as follows:

Extend the scope of application of the standard; revise the classification method of fire-resistant window fire resistance according to international and foreign standards, and classify them according to “insulation (Class A)” and “non-insulation (Class C)”, and increase from 0.5 A total of five fire-resistant grades from h to 3.0h; the modelling method for fireproof windows has been defined; the fireproof glass used on fireproof windows has been increased in quality requirements and test methods;

Added technical requirements and test methods such as resistance to wind pressure and airtightness of fire-rated windows, distortion of movable window sash, static operating temperature of thermal sensitive elements of movable fireproof windows, reliability of sash closing, and window sash automatic closing time;

At the same time, the method and criteria for type inspection of fireproof windows were modified. “High-rise Civil Building Design Fire Protection Code” requires fire doors to be installed in high-rise building fire protection design. In addition to ordinary doors, fire doors also have special features such as fire prevention, smoke isolation, suppression of fire spread, and protection of evacuation.

Regarding the specifications of the fire doors , I will introduce them to you here. I hope to help you, and I would like to look forward to seeing more information on this site.

Doors and windows