Verified from the manufacturer’s own documentation · last checked September 19, 2026
| Manufacturer | Pella |
|---|---|
| Series | Reserve — Traditional |
| Frame material | Wood and aluminum-clad wood. Extruded aluminum-clad exteriors with EnduraClad finish (meets AAMA 2604), Seacoast EnduraClad for high-salt coastal exposure, and EnduraClad Plus (70% fluoropolymer, meets AAMA 2605) for select projects. Wood exteriors available primed/ready-to-paint or unfinished; multiple wood species |
| Styles / configurations | Double-hung, casement and picture windows plus a wide range of curved, angled and specialty shapes (Pella cites more than two dozen). Built for authentic traditional and historic work — reviewed case-by-case by the National Park Service for historic-tax-credit projects and used on National Historic Registry projects. Confirm the current style list on Pella's Reserve Traditional pages |
| Glass options | Pella InsulShield dual- and triple-pane insulating glass; optional triple-pane and optional impact-resistant glass |
| U-factor | Not published as a single line-wide range; NFRC-certified values follow the style and glazing package. Check the NFRC label on the exact unit quoted |
| SHGC | Not published as a single line-wide range; follows the glazing package. Check the NFRC label on the unit quoted |
| VT | Not publicly specified |
| ENERGY STAR | Pella offers ENERGY STAR certified glazing options; certification follows the selected glass package and climate zone |
| NFRC certification | NFRC-certified performance is published per style and glazing package; triple-pane options are registered with the Passive House Institute US |
| Warranty | Covered by Pella's wood and aluminum-clad wood limited warranty — the same warranty Pella markets as the industry's best limited lifetime warranty for wood windows and patio doors (Pella's own claim). Backed by EnduraGuard wood protection and the EnduraClad finish. Specific component durations for glass, cladding and wood are set out in that written warranty — request the current document before purchase |
| Positioning | Pella's premium, tailor-made wood line (top tier alongside Architect Series). The Traditional line focuses on authentic historical detailing — through-stile construction, intricate butt joinery, historic putty profiles and what Pella calls the industry's deepest sash dimension, with exclusive Antiek fold-away hardware |
| Price position | Premium / luxury; top of Pella's wood range |
| Installation | New construction, replacement and historic renovation; custom, made-to-order, sold and quoted through Pella showrooms and dealers |
Notes
Wood or aluminum-clad wood. Historic-project credentials (National Park Service case-by-case review; National Historic Registry). U-factor, SHGC and VT are configuration-specific — check the NFRC label. Exact warranty component durations were not transcribed this session; the Pella wood/clad limited warranty governs
Sources
Pella's own Reserve pages — pella.com/ideas/windows/reserve/ and the Reserve Traditional shop pages (double-hung, casement, picture) for material, styles, hardware and cladding standards (AAMA 2604 / 2605); Pella Pro Dealer Reserve page