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Performance Comparison

Weather Resistance Structural Integrity
Water
Penetration (1)
ASTM E-547
No Penetration At:		 Air
Infiltration (2)
ASTM E-283		 Thermal
Integrity (3)
NFRC U-Factor		 Structural Load Deflection (4)
ASTM E-330
Pass At: Design Pressure		 Forced Entry
Resistance (5)
AAMA 1304
CAWM 300-96
6.24 psf (300 Pa) Range Positive Negative
Glazed Folding System
SL60
Inward 15 psf (715 Pa) 0.06 0.51 - 0.25 NFRC 45 psf 45 psf Yes
Outward 2.9 psf (140 Pa) 0.04 0.51 - 0.26 NFRC 45 psf 45 psf Yes
SL45
Inward 1.56 psf (75 Pa) N/A 1.16 - 0.57 35 psf 35 psf Yes
Outward 1.56 psf (75 Pa) N/A 1.16 - 0.57 35 psf 35 psf Yes
SL70
Inward 12 psf (580 Pa) 0.20 - 0.30 0.54 - 0.26 NFRC 70 psf 100 psf Yes
Outward 12 psf (580 Pa) 0.07 - 0.30 0.54 - 0.26 NFRC 70 psf 70 psf Yes
SL73 HURRICANE
Inward 12 psf (580 Pa) 0.10 - 0.30 0.82 - 0.39 70 psf 100 psf Yes
Outward 12 psf (580 Pa) 0.07 - 0.30 0.83 - 0.39 70 psf 70 psf Yes
SL35
Inward 3 psf (140 Pa) 0.32 1.16 - 0.55 35 psf 35 psf Yes
Outward 5.25 psf (250 Pa) 0.24 1.16 - 0.55 35 psf 35 psf Yes
WA67
Inward 12 psf (580 Pa) 0.23 0.44 - 0.17 NFRC 45 psf 80 psf Yes
Outward 12 psf (580 Pa) 0.28 0.44 - 0.17 NFRC 80 psf 45 psf Yes
WD66
Inward 12 psf (580 Pa) 0.03 0.43 - 0.19 NFRC 35 psf 50 psf Yes
Outward 12 psf (580 Pa) 0.18 0.43 - 0.20 NFRC 50 psf 35 psf Yes
WD65
Inward Data Pending 0.23 0.43 - 0.21 NFRC 35 psf 35 psf Yes
Outward Data Pending 0.38 0.43 - 0.20 NFRC 35 psf 35 psf Yes
Single Track Sliding System
HSW65 (6)
Stacking 6 psf (300 Pa) 0.46 0.47 - 0.21 NFRC 50 psf 50 psf Yes
VSW65 (6)
Stacking 6 psf (300 Pa) 0.46 0.47 - 0.21 NFRC 50 psf 50 psf Yes
HSW60
Stacking 6 psf (300 Pa) 0.30 0.55 - 0.34 45 psf 45 psf Yes
VSW35
Stacking Data Pending Data Pending 1.16 - 0.55 Data Pending Data Pending Data Pending
SL25
Stacking N/A N/A N/A 40psf 45psf N/A
(1) Water Penetration (ASTM E-547). Ratings shown are for units with raised sills. Ratings for units with flush/saddle sills are dependent on drain connections by others.
(2) Air Infiltration (ASTM E-283). Cubic feet per minute per linear feet of crack. Ratings shown are for units with raised sills. Ratings on units with flush/saddle sills may be less.
Data also available for lower wind speed.
(3) In accordance with NFRC 100. Ranges shown are with insulated glass types.
(4) Structural Load Deflection (ASTM E-330). Ratings shown are for units with reinforced locking points. For comparison purposes, ratings are shown from comparative analysis for 3' x 8' panels.
Higher loading is possible with smaller panel sizes.
(5) Forced Entry Resistance — Compliance with AAMA 1304 and CAWM 300-96 requirements.
(6) For testing purposes, the VSW65 and the HSW 65 are considered the same system
Note: Before final selection, please see testing results for each system with consideration for testing conditions, panel configurations and installation details.
NFRCNFRC rated, certified, and labeled
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