Specifications & Testing Data
| Frame material | Ultrex fiberglass exterior, clear pine interior |
|---|---|
| U-factor (NFRC) | 0.25 – 0.3 |
| Solar heat gain coefficient (NFRC) | 0.24 – 0.33 |
| Design pressure (DP) rating | Commonly DP 40–50; large and specialty units verified per configuration |
| AAMA performance class | Certified to AAMA/NAMI standards; class varies by unit |
| ENERGY STAR zones | Northern, North-Central |
| Glass options | Dual-pane Low-E2 w/ argon, Low-E3, Low-E1 (passive solar), Tempered, STC/OITC upgrades |
| Available styles | Casement, Awning, Double-Hung, Glider, Picture, Bay & Bow, Round Top, Specialty shapes |
The Best-of-Both Recipe
The Elevate is Marvin's hybrid: Ultrex pultruded fiberglass facing the weather, clear pine facing the room. The logic is simple — fiberglass is the most dimensionally stable frame material you can put against Idaho's 85-degree annual temperature swing, and wood is still what people want to touch and see inside. The Elevate is how you get both without paying full clad-wood prices.
It sits in the middle of Marvin's range: above the all-fiberglass Essential, below the aluminum-clad-wood Ultimate.
Testing Data That Matters Here
NFRC-certified U-factors on common Elevate configurations run 0.25–0.30 with dual-pane Low-E and argon — at or better than the 0.30 ceiling we spec for zone 5B. The glass menu is deep enough to tune by elevation: Low-E3 for west-facing summer heat, a passive-solar Low-E1 option for cold north faces, and sound-control packages for homes near Eagle Road or the Interstate.
The engineering detail we care most about as installers: Ultrex expands at roughly the same rate as glass. Every hot afternoon and cold night, a window frame and its glass grow and shrink together instead of fighting each other. That's seal longevity — the failure mode that kills most windows in this valley — addressed at the materials level.
Where the Elevate Earns Its Price in the Valley
Foothills and view homes with big glass and wind exposure. Dark-exterior modern builds (Ebony fiberglass doesn't warp; dark vinyl can). Remodels where the designer wants stained-wood interiors without babying an all-wood window. And street-facing elevations where slim sightlines visibly change the look of the house.
Where we steer you elsewhere: strict budget whole-house jobs (Essential or Milgard vinyl gets the energy numbers for less) and historic-district restorations wanting authentic profiles (Marvin Ultimate or Kolbe). We carry all of them, so the recommendation follows the house, not a quota.
Warranty, Locally Serviced
Marvin backs the Elevate with a 20-year insulated-glass and 10-year non-glass limited warranty. Wood Windows Inc is an authorized Marvin dealer — warranty work in the Treasure Valley is done by our own employees, scheduled from Garden City, usually the same week you call.
Compare it against the Andersen 400 Series or a Milgard quote in one appointment: (208) 376-2200 or the form on this page.
Frequently Asked Questions
What's the difference between Marvin Elevate and Essential?
The interior. Both use Ultrex fiberglass on the exterior, but the Elevate gives you a clear pine interior you can paint or stain to match trim, plus a deeper options catalog — more sizes, divided-light patterns, and hardware. Essential is fiberglass on both faces and simpler options at a lower price.
Is the Marvin Elevate worth it over the Andersen 400 Series?
They're direct competitors and we sell both. Elevate typically runs 10–20% more and gives you slimmer sightlines, more glass, and a fiberglass exterior. The 400 Series counters with five decades of Perma-Shield field history and a lower price. Traditional home, tighter budget: 400 Series. Modern lines, dark colors, bigger glass: Elevate.
Can the wood interior handle Idaho's dry air?
Yes — the bare pine interior ships ready to finish, and once painted or stained it's stable in low humidity. We do recommend finishing within a few months of installation; we can also order it factory-primed white if you want zero finishing work.
What does the Marvin Elevate cost installed in the Treasure Valley?
Most Elevate replacements land in the $1,100–$1,700 per window range installed, depending on size, style, and glass package — between premium vinyl and full clad-wood. A firm per-window number comes with a free in-home measure.
Sources & Testing Data
Last reviewed 2026-07-04 by Wood Windows Inc — (208) 376-2200