Wood & wood-aluminum
Real timber where you live, aluminum where the weather hits.
Get a free consultation· See Synergic and Atlantis
Nothing inside a house feels quite like a wood window. The grain, the weight of the sash, the way a stain picks up winter light. The worry in Seattle is the other side: eight months of rain. European wood windows answer that two ways. The timber is laminated from several layers glued with alternating grain, so it stays straight. And on our wood-aluminum windows, an aluminum shell covers the outside face, so rain and sun never touch the wood.
Wood or wood-aluminum: which should you choose?
All-wood windows need the outside finish renewed from time to time, more often on south and west faces. Wood-aluminum puts a powder-coated aluminum shell over the outside face, so rain and UV hit metal, not timber. Inside, both look the same.
Species and finishes
Several wood species are available; ask for the current list. Inside finishes: clear or tinted stains that show the grain, or opaque paint in RAL and NCS colors, and the factory can match a stain to a sample you send.
Laminated timber with aluminum outside is the wood window that makes sense in the rain.
Built like furniture, sealed like a modern window
Frame depths of 68, 78 and 92 mm, three or four locking points as standard, two or three seal lines and double or triple glazing. Hidden hinges are common. It's the same tilt-and-turn operation as our uPVC and aluminum windows.
Two systems
| Synergic | Atlantis | |
|---|---|---|
| Material | Wood-aluminum (or wood only) | Wood |
| Look | Ultra-slim, hidden sash, modern | Flush interior, sill-style bottom, brickmould-style trim |
| U-factor from | 0.16 (triple), 0.26 (double) | — |
| SHGC | 0.15–0.25 | — |
| Frame depth | 3.2″ / 3.6″ (81.5 / 91.5 mm) | — |
| Seals | 3 | 2 (dual weatherseal) |
| NFRC certified | Yes | —* |
| Page | Synergic | Atlantis |
*— NFRC rating: ask us for current status for your project.
Also in wood: the Simulated double-hung windows window.
Wood window questions
Will wood windows rot in Seattle?
How do I care for the inside?
Do wood windows insulate as well as uPVC?
Thinking about wood windows?
We'll go through species, stains and colors with you at the consultation.
Product detail photo 
Product detail photo
Photos are illustrative and not necessarily this exact system.
No. 01
Synergic wood-aluminum
Wood inside. Aluminum outside. Almost no frame.
Synergic: slim wood-aluminum tilt-and-turn window with hidden sash and hidden hinges. NFRC certified, U-factor 0.16 triple-glazed. Installed around Seattle.
Specifications
Performance
- U-factor
- 0.16 triple-glazed; 0.26 double-glazed (NFRC)
- SHGC
- 0.15–0.25
- Visible transmittance
- 0.29–0.43
- Sound
- up to 47–48 dB (European Rw, not STC)
- Security
- up to RC2 (European class)
- NFRC rating
- Certified
Construction
- Depth
- 3.2″ (81.5 mm) and 3.6″ (91.5 mm, XL); 82.5 / 92.5 mm variants
- Frame + sash height
- about 90 mm (tilt-and-turn), 88 mm (fixed)
- Mullions
- movable about 97 mm, fixed about 100 mm
- Seals
- 3
- Max glass thickness
- about 58 mm (2-9/32″, XL)
- Hinges
- concealed, sashes to about 150 kg
- Cladding
- aluminum cladding outside, powder-coated in any RAL color, textured or matte
- Wood
- three-layer laminated timber
- Hardware
- concealed
Options
- Species
- pine, spruce, larch, meranti, oak
- Colors
- RAL/NCS paint, stains, metallics, custom match; aluminum in RAL/NCS, matte or gloss
- Variants
- wood-aluminum or all-wood
- Install
- nailing fin, brackets, through-frame; brickmould
Ordering
- Lead time
- 3–4 months; made to order and shipped by sea freight
- Warranty
- 20-year limited manufacturer warranty; 3-year installation warranty. See warranty terms
System cross-section 
At the factory, before shipping 
At the factory, before shipping
Photos are illustrative and not necessarily this exact system.
No. 02
Atlantis wood
Quiet, flush, all wood.
Atlantis: wood tilt-and-turn window from four-layer laminated timber, with a flush interior, sill-style bottom rail and brickmould-style trim.
Specifications
Performance
- U-factor
- your quote lists the value for each window
- SHGC
- depends on glass; your quote lists it
- NFRC rating
- Ask us for current status for your project
Construction
- Timber
- four-layer laminated
- Seals
- dual weatherseal
- Glazing
- double or triple
- Hardware
- concealed
Options
- Grilles
- applied, SDL, GBG
- Finishes
- primed, stained, opaque RAL/NCS, custom match
- Shapes
- arched and special shapes
- Opening types
- Ask us for your project
Ordering
- Lead time
- 3–4 months; made to order and shipped by sea freight
- Warranty
- 20-year limited manufacturer warranty; 3-year installation warranty. See warranty terms