Best seller · Casement
65 Series Thermal Break Casement Window
The volume workhorse: 1.5 mm walls, 15 mm thermal break, 32 mm glazing groove and a price that still works on 200-unit projects.

One frame. Three cavities. Screen, glass and sash in a single plane.
YFG90 is the window we specify when a project cannot afford to compromise: deep 90 mm frame, 2.0 mm load-bearing walls, three independent thermal chambers and a 25 mm visible face that keeps sightlines quiet. The stainless insect screen sits flush inside the frame instead of bolted on the outside, so ventilation no longer costs you the view or the finish.
| Profile alloy | 6063-T5 primary aluminum, T5 temper |
|---|---|
| System depth | 90 mm frame · 25 mm visible face |
| Load-bearing wall | 2.0 mm |
| Thermal structure | Three independent cavities, PA66 GF25 polyamide strips |
| Glass | 5 + 20A + 5 mm double tempered (Low-E optional) |
| Insect screen | 304 stainless steel mesh, flush integrated |
| Hardware | German-brand tilt-turn or casement hardware |
| Sealing | EPDM co-extruded gaskets, three sealing lines |
| Opening | Inward casement, tilt-turn, fixed + operable combinations |
| Colours | Powder-coated RAL range, anodized, wood grain |
Values below are the classification for this series with the standard glass build. Reports for the exact configuration you order are supplied with the documents.
Performance is configuration-dependent. Glass build, sash size, installation quality and exposure all change the result; we quote values for the exact build you order.

Powder coating at 40–80 μm on a chromated pre-treatment, in a matte, satin or anodised finish. Teak and walnut sublimation are available, and any RAL can be matched from a physical sample. Colour boards are sent for approval before production.
The frame is divided into three closed chambers. Each one interrupts heat transfer, and the outer two carry drainage away from the inner seals.
The 304 stainless mesh runs in its own track inside the frame, flush with the sash. From inside you see one clean line, not a bolt-on box.
Stepped drainage, pressure-equalised chambers and three EPDM sealing lines deal with wind-driven rain instead of relying on a bead of silicone.
Multi-point locking with stainless internals; handles and hinges tested for coastal air rather than dry inland air.
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Best seller · Casement
The volume workhorse: 1.5 mm walls, 15 mm thermal break, 32 mm glazing groove and a price that still works on 200-unit projects.
Wide opening · Sliding
Three tracks, up to two-thirds open, 304 stainless mesh on its own track and a hidden drainage sill that keeps the track dry.
Large opening · Folding
Top-hung folding panels that stack into a single 90 mm pile — the closest thing to removing the wall between a living room and a terrace.
WhatsApp a photo with dimensions, or send drawings and a window schedule. You will get a configuration proposal, a per-square-metre price and a delivery date — usually within 12 working hours.