Pella Architect Series - NFRC Rating

Exquisitely detailed wood windows  in custom shapes, sizes, grille patterns, exterior colors, and more. Eight naturally beautiful wood types with fine-furniture detailing. Pella’s most authentic look of individual windowpanes.

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Family Owned and Operated Since 1980
301-220-1144 or 800-704-3791
Serving Maryland, Virginia and Washington DC
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Pella Architect Series - NFRC Test Results


Window Series Window Style Package Glass Type Gas Fill U-Factor Solar Heat Gain Coefficient (SHGC) Visible Transmittance (VT)
Architect Double Hung Advanced LowE Argon .29 .28 .53
Architect Double Hung SunDefense LowE Argon .29 .21 .50
Architect Picture Window Advanced LowE Argon .28 .30 .56
Architect Picture Window SunDefense  LowE Argon .29 .30 .54
Architect Casement Window Advanced  LowE Argon .28 .27 .50
Architect Casement Window SunDefense  LowE Argon .27 .19 .44
Architect Awning Window Advanced LowE Argon .29 .26 .48
Architect Awning Window SunDefense  LowE Argon .28 .19 .44


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