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The air leakage of fenestration assemblies shall meet the provisions of Table C402.5.4. Testing shall be in accordance with the applicable reference test standard in Table C402.5.4 by an accredited, independent testing laboratory and labeled by the manufacturer.
Exceptions:
  1. Field-fabricated fenestration assemblies that are sealed in accordance with Section C402.5.1.
  2. Fenestration in buildings that comply with the testing alternative of Section C402.5 are not required to meet the air leakage requirements in Table C402.5.4.
MAXIMUM AIR LEAKAGE RATE FOR FENESTRATION ASSEMBLIES
FENESTRATION ASSEMBLY MAXIMUM RATE (CFM/FT2) TEST PROCEDURE
Windows 0.20a AAMA/WDMA/CSA101/I.S.2/A440 or NFRC 400
Sliding doors 0.20a
Swinging doors 0.20a
Skylights—with condensation weepage openings 0.30
Skylights—all other 0.20a
Curtain walls 0.06 NFRC 400 or ASTM E283 at 1.57 psf (75 Pa)
Storefront glazing 0.06
Commercial glazed swinging entrance doors 1.00
Power-operated sliding doors and power operated folding doors 1.00
Revolving doors 1.00
Garage doors 0.40 ANSI/DASMA 105, NFRC 400, or ASTM E283 at 1.57 psf (75 Pa)
Rolling doors 1.00
High-speed doors 1.30
For SI: 1 cubic foot per minute = 0.47 L/s, 1 square foot = 0.093 m2.
  1. The maximum rate for windows, sliding and swinging doors, and skylights is permitted to be 0.3 cfm per square foot of fenestration or door area when tested in accordance with AAMA/WDMA/CSA101/I.S.2/A440 at 6.24 psf (300 Pa).

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