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Crystal Window & Door Systems, offers industry proven quality, with state-of-the-art manufacturing facilites. Cryastal's wide array of products, offers architectural designers fenestration solutions that enhance green sustainable design initiative.

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Vinyl U-Value Reference Chart By Region
 
Series CVD-200
X=Has Label
Air, Low E (e=0.204) Hard Coating
  U - Value SHGC VT Energy Star Region NFRC Label
Residential 0.38 0.52 0.54 Central  
Non-Residential 0.38 0.52 0.56 Central  

Argon, Low E (e=0.047) Soft Coating
  U - Value SHGC VT Energy Star Region NFRC Label
Residential 0.31 0.36 0.51 Northern, Central, Southern X
Non-Residential 0.30 0.37 0.53 Northern, Central, Southern X

Argon, Low E (e=0.204) Hard Coating
  U - Value SHGC VT Energy Star Region NFRC Label
Residential 0.35 0.52 0.54 Northern, Central X
Non-Residential 0.35 0.52 0.56 Northern, Central X
 
Series CVP-210
X=Has Label
Air, Low E (e=0.204) Hard Coating
  U - Value SHGC VT Energy Star Region NFRC Label
Residential 0.36 0.53 0.56 Central  
Non-Residential 0.36 0.53 0.57 Central  

Argon, Low E (e=0.047) Soft Coating
  U - Value SHGC VT Energy Star Region NFRC Label
Residential 0.28 0.36 0.54 Northern, Central, Southern  
Non-Residential 0.28 0.37 0.54 Northern, Central, Southern  

Argon, Low E (e=0.204) Hard Coating
  U - Value SHGC VT Energy Star Region NFRC Label
Residential 0.33 0.52 0.56 Northern, Central  
Non-Residential 0.33 0.52 0.57 Northern, Central  
 
Series CVS-220
X=Has Label
Air, Low E (e=0.204) Hard Coating
  U - Value SHGC VT Energy Star Region NFRC Label
Residential 0.36 0.5 0.52 Central  
Non-Residential 0.36 0.51 0.55 Central  

Argon, Low E (e=0.047) Soft Coating
  U - Value SHGC VT Energy Star Region NFRC Label
Residential 0.38 0.35 0.5 Northern, Central, Southern  
Non-Residential 0.37 0.36 0.52 Northern, Central, Southern  

Argon, Low E (e=0.204) Hard Coating
  U - Value SHGC VT Energy Star Region NFRC Label
Residential 0.31 0.5 0.52 Northern, Central  
Non-Residential 0.3 0.51 0.55 Northern, Central  
 
Series CVC-230
X=Has Label
Air, Low E (e=0.204) Hard Coating
  U - Value SHGC VT Energy Star Region NFRC Label
Residential 0.34 0.46 0.48 Northern, Central  
Non-Residential 0.35 0.48 0.51 Northern, Central  

Argon, Low E (e=0.047) Soft Coating
  U - Value SHGC VT Energy Star Region NFRC Label
Residential 0.28 0.32 0.46 Northern, Central, Southern  
Non-Residential 0.28 0.34 0.49 Northern, Central, Southern  

Argon, Low E (e=0.204) Hard Coating
  U - Value SHGC VT Energy Star Region NFRC Label
Residential 0.32 0.46 0.48 Northern, Central  
Non-Residential 0.32 0.48 0.51 Northern, Central  
 
Series CVS-300
X=Has Label
Air, Low E (e=0.204) Hard Coating
  U - Value SHGC VT Energy Star Region NFRC Label
Residential 0.35 0.48 0.57 Northern, Central X
Non-Residential 0.34 0.47 0.59 Northern, Central X
 
Series CVP-310
X=Has Label
Air, Low E (e=0.204) Hard Coating
  U - Value SHGC VT Energy Star Region NFRC Label
Residential 0.35 0.48 0.57 Northern,Central, Southern  
Non-Residential 0.34 0.47 0.59 Northern,Central, Southern  
 
Series CVS-320
X=Has Label
Air, Low E (e=0.204) Hard Coating
  U - Value SHGC VT Energy Star Region NFRC Label
Residential 0.40 0.53 0.55 Central  
Non-Residential 0.39 0.53 0.57 Central  

Argon, Low E (e=0.047) Soft Coating
  U - Value SHGC VT Energy Star Region NFRC Label
Residential 0.32 0.37 0.52 Northern, Central, Southern X
Non-Residential 0.31 0.37 0.54 Northern, Central, Southern X

Argon, Low E (e=0.204) Hard Coating
  U - Value SHGC VT Energy Star Region NFRC Label
Residential 0.35 0.52 0.54 Northern, Central X
Non-Residential 0.35 0.52 0.56 Northern, Central X
 
Series CVD-400
X=Has Label
Air, Low E (e=0.204) Hard Coating
  U - Value SHGC VT Energy Star Region NFRC Label
Residential 0.37 0.53 0.55 Central  
Non-Residential 0.36 0.53 0.57 Central  

Argon, Low E (e=0.204) Hard Coating
  U - Value SHGC VT Energy Star Region NFRC Label
Residential 0.37 0.54 0.56 Northern, Central, Southern X
Non-Residential 0.36 0.54 0.58 Northern, Central, Southern X
 
Why are CRYSTAL® ENERGY STAR® WINDOWS better than standard air filled windows?
The National Fenestration Council (NFRC) rates the performance of windows on how well they keep your home cool in the
summer, and warm in the winter, keep out wind, and resist condensation.

U-Factor: Measures how well a product prevents heat from escaping. The lower the U-Value, the greater insulating performance.
R-Value: Measures insulating value of window, and is the inverse of the U-Value.
VT Visual Transmittance: Measures how much light comes through a window. High VT allows for greater SHGC solar heat gain.
SHGC Solar Heat Gain Coefficient: Measures how well a window blocks heat caused by sunlight. The lower SHGC value, less solar heat transmitted.*

CRYSTAL® ENERGY STAR® CONSUMER TIP*:
For Spring & Summer:
Casement: By adding full screen, you can reduce SHGC by 50%.
Double Hung: By adding full screen, you can reduce SHGC by 50%
Double Hung: By adding half screen, you can reduce SHGC by 25%
Reducing SHGC will reduce your HVAC cooling energy bills!
For Winter:
Casement: By removing full screen, SHGC value is referenced above.
Double Hung: By removing full screen, SHGC value is referenced above.
Double Hung: By removing half screen, SHGC value is referenced above.
Increasing your SHGC will reduce your HVAC heating energy bills!

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