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.
Warranty, line by line
Insulated glass, up to 60 sq ft 20 years · Insulated glass, 60 sq ft and larger 10 years · Stress cracks, non-tempered glass 10 years · Hardware and all other non-glass components 10 years · Exterior aluminum cladding finish (AAMA 2605) 20 years · Ultrex fiberglass exterior finish 10 years · Factory interior finish 5 or 10 years · Motorized operators and sensors 5 and 2 years. Labor: No. Marvin's written remedy is repair, replacement or refund of the part; removal, installation, finishing and disposal are expressly excluded. Wood Windows handles the service work and tells you up front what, if anything, is billable. Read the full breakdown →
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