Menus require javascript to be enabled in your browser Performance Data for MW Jefferson Wood/Composite Window & Door Products
MW Windows & Doors LogoGo To MW Home pageGo To PLy Gem Corporate Website   
Selection                        
Service
                          and Value
 Selection, Service, and Value 
 Selection, Service, and Value 
 Selection, Service, and Value 
 Selection, Service, and Value 
 Selection, Service, and Value 
 Selection, Service, and Value 
 Selection, Service, and Value 
 Selection, Service, and Value 
 
PERFORMANCE DATA
MW JEFFERSON® Series (Wood/Composite)

All units tested in accordance with ASTM standards; rated in accordance with International Residential Code; and witnessed by an independent AAMA accredited lab. Units were tested without dividers.


 
100 Double Hung Performance        200 Double Hung Performance
  U Value R Value SHGC VLT          U Value R Value SHGC VLT
5/8" Clear .49 2.04 .58 .60        5/8" Clear .48 2.08 .59 .61
5/8" Low-E .36 2.77 .35 .52        5/8" Low-E .35 2.86 .34 .52
5/8" Low-E/Argon .32 3.13 .35 .52        5/8" Low-E/Argon .31 3.23 .34 .52

 
300 Double Hung Performance        400 Double Hung Performance
  U Value R Value SHGC VLT          U Value R Value SHGC VLT
3/4" Clear .47 2.13 .60 .62        3/4" Clear .46 2.17 .59 .55
3/4" Low-E .34 2.44 .35 .53        3/4" Low-E .33 3.03 .35 .50
3/4" Low-E/Argon .30 3.33 .35 .53        3/4" Low-E/Argon .30 3.33 .35 .50

 
200 Casement Performance        Center Hinged Patio Door
  U Value R Value SHGC VLT          U Value R Value SHGC VLT
3/4" Clear .47 2.13 .53 .54        3/4" Clear .43 2.32 .47 .49
3/4" Low-E .34 2.94 .33 .47        3/4" Low-E .33 3.03 .29 .42
3/4" Low-E/Argon .31 3.23 .33 .47        3/4" Low-E/Argon .30 3.33 .29 .42

 
Sliding Patio Door        French Sliding Patio Door Performance
  U Value R Value SHGC VLT          U Value R Value SHGC VLT
3/4" Clear .48 2.08 .62 .64        3/4" Clear .45 2.22 .51 .52
3/4" Low-E .34 2.94 .38 .56        3/4" Low-E .35 2.86 .31 .45
3/4" Low-E/Argon .31 3.23 .38 .56        3/4" Low-E/Argon .32 3.13 .31 .45

 
                
Note:
U Value=Ultraviolet transferrance
R Value=Restrictive ambient air flow
SHGC=Solar Heat Gain Coefficient
VLT=Visible Light Transmission
                 
                 
                 
                 

 
ENERGY STAR® Qualification Criteria
WINDOWS AND DOORS
ZoneU-factorSHGC
Northernless than, equal to0.35Any
North/Centralless than, equal to0.40less than, equal to0.55
South/Centralless than, equal to0.40less than, equal to0.40
Southernless than, equal to0.65less than, equal to0.40
MW Jefferson® Series window & sliding patio door products can be ordered to meet or exceed the requirements for the Energy Star program in all four climate zones.
   Energy Star Regions Map
Energy Star Partner

Last Modified:  Wednesday, February 13, 2008 4:24:16 PM