This standard specifies the main physical performance classification of building curtain walls. Including wind pressure deformation, air permeability, rainwater leakage, thermal insulation and sound insulation. This standard applies to building glass curtain walls. GB/T 15225-1994 Physical Performance Classification of Building Curtain Walls GB/T15225-94 GB/T15225-1994 Standard download decompression password: www.bzxz.net

Engineering Construction Standard Full-text Information System
UDC699.8.022.32:006.73
National Standard of the People's Republic of China
GB/T15225-94
Classification of physical properties of building curtain walls
Craduation of physical performances for building curtain walls
Published on September 24, 1994
State Bureau of Technical Supervision
Implementation on August 1, 1995
W.bzsoso.coI Engineering Construction Standard Full-text Information System
National Standard of the People's Republic of China
Classification of physical properties of building curtain walls
Craduation of physical performances for building curtain walls
Subject content and scope of application
GB/T15225-—94
This standard specifies the main physical performance classification of building curtain walls. Including wind pressure deformation, air permeability, rainwater leakage, thermal insulation and sound insulation.
This standard applies to building glass curtain walls.
2 Cited standards
GB8484
GB8485
Classification and test method of thermal insulation performance of building exterior windows Classification and test method of air sound insulation performance of building exterior windows GB/T15226
Test method of air permeability performance of building curtain walls GB/T15227
GB/T15228
Test method of wind pressure deformation performance of building curtain walls Test method of rainwater leakage performance of building curtain walls Performance classification (see Table 1 to Table 5)
3.1 Classification of wind pressure deformation performance
Wind pressure deformation
Measurement unit
<5,≥4
Note: The classification value in the table corresponds to the safety detection pressure value, indicating that under this wind pressure, the relative deflection value of the curtain wall load-bearing components should be below L/180, and its absolute deflection value should be within 20mm. If the absolute deflection value exceeds 20mm, the pressure value corresponding to 20mm shall be the classification value. 3.2 Classification of air permeability performance
Air permeability
Unit of measurement
Openable part
m/m·h
(10Pa)
3.3 Classification of rainwater leakage performance
Fixed part
Approved by the State Administration of Technical Supervision on September 24, 1994Ⅱ
Implementation on August 1, 1995
W. Engineering Construction Standard Full-text Information System
Rainwater leakage
3.4 ​​Classification of thermal insulation performance
Thermal insulation
3.5 Classification of sound insulation performance|| tt||Sound insulation
4 Test method
Openable part
Fixed partbZxz.net
Unit of measurement
W/m2·K
Unit of measurement
Wind pressure deformation performance test
≥2500
<500,
<2500,
≥1600
<350,
≥250
<1600,
>0.70,≤1.25
Wind pressure deformation performance test shall be carried out in accordance with the provisions of GB/T15227. 4.2 Air permeability test
Air permeability test shall be carried out in accordance with the provisions of GB/T15226. 4.3 Rainwater leakage performance test method
Rainwater leakage performance test shall be carried out in accordance with the provisions of GB/T15228. 4.4 Thermal insulation performance test
Thermal insulation performance test method shall be carried out in accordance with the provisions of GB8484. 4.5 Airborne sound insulation test method shall be carried out in accordance with the provisions of GB8485. N
<250，
<1000，
>1.25,≤2.00
<40,35
<35,30
<150，
<700，
>2.00,≤3.30
<30,≥25
W Engineering Construction Standard Full-text Information System
Additional Notes:
This standard is proposed by the Ministry of Construction of the People's Republic of China. This standard is under the jurisdiction of the China Building Standards Institute, the technical authority for building products and equipment standards under the Ministry of Construction. This standard was drafted by the Institute of Building Physics, China Academy of Building Research. The main drafters of this standard are Gao Xijiu, Tan Hengyu, and Gong Wenzhong. This standard is entrusted to the Institute of Building Physics, China Academy of Building Research for interpretation.
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