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| Material | FSC-certified solid or finger-jointed timber frame with exterior 6063-T5/T6 aluminum cladding, thickness ≥1.4 mm. |
| Finish | Interior: Sikkens water-based wood coating, clear or opaque | Exterior: AkzoNobel fluorocarbon coating, RAL/custom colors |
| Glass | Standard tempered IGU with KÖMMERLING 4SG warm-edge system; double/triple glazing and Low-E, laminated or ultra-clear glass available |
| Hardware | ROTO / HOPPE / MACO / SIEGENIA / G-U hardware options; concealed hinges available |
| Sealing | Multi-level automotive-grade EPDM sealing with co-extruded gaskets and 90° welded corners |
| Screen | 304 stainless steel or high-transparency mesh screen; integrated or add-on options available |
| Customization | Custom opening styles, timber colors and finishes, aluminum colors, glass, hardware, grilles, and screens. |






















