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U-Values


            Visit the NFRC Website to view more of our U-Values and our CPD (Certified Product Directory) numbers

 

 

                                                                                            NFRC SIZE AA U-VALUES

Dual Glaze Windows


MODEL FRAME 1/8" CLEAR + CLEAR 1/8" SB60 + CLEAR 1/8" SB70 + CLEAR
AIR ARGON AIR ARGON AIR ARGON
  U-Val SHGC VT U-Val SHGC VT U-Val SHGC VT U-Val SHGC VT U-Val SHGC VT U-Val SHGC VT
1505 Fixed AT-1 /AT-2 0.52 0.69 0.74 0.50 0.69 0.74 0.38 0.36 0.66 0.33 0.35 0.66 0.37 0.25 0.59 0.33 0.25 0.58
1505 Fixed AT-17 0.53 0.66 0.70 0.51 0.66 0.70 0.38 0.34 0.62 0.35 0.34 0.62 0.38 0.24 0.55 0.34 0.24 0.55
1505 Casement AT-17 0.58 0.54 0.57 0.56 0.54 0.57 0.47 0.28 0.50 0.44 0.28 0.50 0.46 0.20 0.45 0.43 0.20 0.45
1505 Awning AT-17 0.58 0.54 0.57 0.57 0.54 0.57 0.47 0.28 0.50 0.44 0.28 0.50 0.47 0.20 0.45 0.44 0.20 0.45
3500 Horizontal Slider N-30 0.59 0.63 0.66 0.57 0.63 0.66 0.45 0.32 0.59 0.42 0.32 0.59 0.45 0.23 0.52 0.42 0.23 0.52
3502 Single Hung N-30 0.59 0.63 0.66 0.57 0.63 0.66 0.45 0.32 0.59 0.42 0.32 0.59 0.45 0.23 0.52 0.41 0.23 0.52

...

MODEL FRAME 3/16" SB60 + 3/16 CLEAR 3/16" SB70 + CLEAR 1/4" SB60 + CLEAR
AIR ARGON AIR ARGON AIR ARGON
  U-Val SHGC VT U-Val SHGC VT U-Val SHGC VT U-Val SHGC VT U-Val SHGC VT U-Val SHGC VT
1505 Fixed AT-1 /AT-2 0.37 0.35 0.65 0.33 0.35 0.65 0.36 0.25 0.58 0.32 0.25 0.58 0.36 0.35 0.64 0.32 0.35 0.64
1505 Fixed AT-17 0.38 0.34 0.61 0.34 0.33 0.61 0.37 0.24 0.54 0.34 0.24 0.54 0.37 0.33 0.61 0.33 0.33 0.61
1505 Casement AT-17 0.46 0.28 0.50 0.44 0.28 0.50 0.46 0.21 0.44 0.43 0.20 0.44 0.46 0.28 0.49 0.43 0.28 0.49
1505 Awning AT-17 0.47 0.28 0.50 0.44 0.28 0.50 0.46 0.21 0.44 0.43 0.20 0.44 0.46 0.28 0.49 0.43 0.28 0.49
3500 Horizontal Slider N-30 0.45 0.32 0.58 0.42 0.32 0.58 0.45 0.23 0.51 0.41 0.23 0.51 0.44 0.32 0.57 0.41 0.32 0.57
3502 Single Hung N-30 0.45 0.32 0.58 0.42 0.32 0.58 0.45 0.23 0.51 0.41 0.23 0.51 0.44 0.32 0.57 0.41 0.32 0.57
7505 Fixed AT-30 0.39 0.34 0.59 0.35 0.33 0.59 0.39 0.24 0.52 0.35 0.24 0.52 0.38 0.34 0.58 0.35 0.33 0.58
                                       

...

Triple Glaze Windows


MODEL FRAME 1/8" SB60 + CLEAR + CLEAR 1/8" SB60 + SB60 + CLEAR 3/16" SB60 + SB60 + CLEAR
AIR ARGON AIR ARGON AIR ARGON
U-Val SHGC VT U-Val SHGC VT U-Val SHGC VT U-Val SHGC VT U-Val SHGC VT U-Val SHGC VT
1505 Fixed AT-1/AT-2 0.29 0.33 0.60 0.27 0.33 0.60 0.24 0.29 0.53 0.21 0.28 0.53 0.24 0.28 0.52 0.21 0.28 0.52
1505 Fixed AT-17 0.31 0.31 0.57 0.28 0.31 0.57 0.26 0.27 0.50 0.23 0.27 0.50 0.26 0.27 0.49 0.23 0.27 0.49
1505 Casement AT-17 0.41 0.26 0.46 0.39 0.26 0.46 0.37 0.23 0.40 0.34 0.23 0.40 0.37 0.23 0.40 0.35 0.23 0.40
1505 Awning AT-17 0.41 0.26 0.46 0.39 0.26 0.46 0.37 0.23 0.40 0.34 0.23 0.40 0.37 0.23 0.40 0.35 0.23 0.40
3500 Horizontal Slider N-30 0.42 0.30 0.53 0.39 0.30 0.53 0.38 0.26 0.47 0.34 0.26 0.47  
3502 Single Hung N-30 0.42 0.30 0.53 0.38 0.30 0.53 0.38 0.26 0.47 0.34 0.26 0.47

 

MODEL FRAME 1/8" SB70 + CLEAR + CLEAR 1/8" SB70 + SB70 + CLEAR 3/16" SB70 + SB70 + CLEAR
AIR ARGON AIR ARGON AIR ARGON
U-Val SHGC VT U-Val SHGC VT U-Val SHGC VT U-Val SHGC VT U-Val SHGC VT U-Val SHGC VT
1505 Fixed AT-1/AT-2 0.29 0.23 0.53 0.26 0.23 0.53 0.24 0.20 0.42 0.21 0.19 0.42 0.23 0.20 0.41 0.20 0.19 0.41
1505 Fixed AT-17 0.31 0.22 0.50 0.28 0.22 0.50 0.25 0.19 0.40 0.23 0.19 0.40 0.25 0.19 0.39 0.23 0.18 0.39
1505 Casement AT-17 0.40 0.19 0.41 0.38 0.19 0.41 0.36 0.16 0.32 0.34 0.16 0.32 0.36 0.16 0.31 0.34 0.16 0.31
1505 Awning AT-17 0.41 0.19 0.41 0.38 0.19 0.41 0.36 0.16 0.32 0.34 0.16 0.32 0.37 0.16 0.31 0.34 0.16 0.31
3500 Horizontal Slider N-30 0.42 0.22 0.48 0.38 0.22 0.48 0.38 0.18 0.37 0.34 0.18 0.37
3502 Single Hung N-30 0.42 0.22 0.48 0.38 0.22 0.48 0.38 0.18 0.37 0.34 0.18 0.37

 

Storefront & Curtain Wall


MODEL FRAME                        1/8" SB60 #2 + CLEAR                       1/8" SB60 #2 + Cardinal i89 #4
AIR ARGON AIR ARGON
U-Val SHGC VT U-Val SHGC VT U-Val SHGC VT U-Val SHGC VT
System 45 Storefront SYS45 0.41 0.35 0.62 0.37 0.35 0.62 0.35 0.35 0.61 0.32 0.34 0.61
System 55 Storefront SYS55                        
System 60 Curtain Wall SYS60 0.39 0.36 0.64 0.35 0.35 0.64 0.33 0.35 0.62 0.31 0.35 0.62

MODEL FRAME                        1/8" SB70XL #2 + CLEAR                       1/8" SB70XL #2 + Cardinal i89 #4
AIR ARGON AIR ARGON
U-Val SHGC VT U-Val SHGC VT U-Val SHGC VT U-Val SHGC VT
System 45 Storefront SYS45 0.40 0.25 0.57 0.36 0.25 0.57 0.35 0.35 0.55 0.32 0.25 0.55
System 55 Storefront SYS55                        
System 60 Curtain Wall SYS60 0.38 0.25 0.58 0.34 0.25 0.58 0.33 0.25 0.56 0.30 0.25 0.56