The photographs on this page show a closely related unit on the same platform, not this exact model — the product guides never photographed it. Sections, sizes and options on this page are this model’s own. Ask us for a photograph of the exact configuration before you specify from an image.
Signature Slimline Casement F20
An outward-opening casement on the slimline platform. Because the sash swings out, nothing intrudes on the room, and the narrow frame keeps the opening reading as glass. A practical pairing with fixed slimline units in long window runs.
Configure your unit, then request a quote — we price it and reply, usually within one business day.
Every unit is made to the opening. Sizes confirmed at quotation.
Low-E1 / E2 / E3 coatings, laminated and tempered build-ups available. We recommend the coating for your climate zone.
No price is shown because every unit is made to order. You will get a written quote for exactly this configuration.
Overview
The outward-opening window in our aluminium slimline range, on the F20 platform, and the only one in the range that opens out. Because the sash swings away from the room, nothing intrudes on the interior — no leaf sweeping into a reveal, no clearance to allow for behind a blind or a worktop — and the narrow frame keeps the opening reading as glass.
It is the odd one out among its siblings by opening action rather than by size. The F0 and F37 are tilt & turns, which open inward in two positions; the F10 is the window wall; this one is listed as a push-out casement, meaning the sash is pushed open by hand rather than wound out on a crank. It pairs naturally with fixed slimline lites in long window runs, where only some of the openings need to operate. F20 is a platform designation, not a measurement; frame sections, size schedules and certified performance are confirmed on enquiry rather than published here.
| Product line | Signature |
|---|---|
| Material | Aluminum |
| Type | Window |
| Platform | F20 |
| Lead Time | Standard configurations: 18 days in the factory |
Project references
Buildings carrying this line.
Specifications
| Material | Aluminum |
| Platform | F20 |
The platform number is a nominal frame depth in millimetres — contact us for the exact measured section before you detail the opening.
Frame profile & section
Values not listed are pending the manufacturer’s certified test report and are deliberately left blank rather than estimated.
Mounting and frame options
The frame type decides the rough-opening detail, the flashing and how much of the existing wall has to come out. Four are available; tell us the wall build-up and we will specify which one your opening needs.
The standard new-construction frame. The flange laps the sheathing so the unit sets and seals in one operation.
A 1 3/8" flange is available where the cladding build-up needs the extra reach.
Installs over an existing aluminum window frame, so the stucco exterior is left intact. No cutting back and repatching.
Available on selected window types — ask us which of your openings can take it before you price the stucco work.
For full removal, when the existing frame is rotten or damaged and has to come out entirely.
Sets into the existing rough opening, and arrives with the through-the-jamb holes pre-drilled and the screws supplied.
Straps fix to the frame, which lets the unit sit anywhere in the depth of the wall cavity rather than at a fixed setback.
Installs from the interior, and works for both new construction and replacement.
Full CAD details for any of these are available on request for your wall assembly.
Factory-joined combinations for large openings
Multi-unit combinations are joined in the factory and delivered as one assembly, so the joint is made under shop conditions instead of on a scaffold. The joining mullion is 1 1/8" (28 mm) wide and comes in three reinforcement grades, chosen by the height of the window it has to carry. The system is covered by a US patent.
| Suggested window height | Joint width |
|---|---|
| up to 9 ft | 1 1/8" (28 mm) |
| 9 to 11 ft | 1 1/8" (28 mm) |
| 11 to 13 ft | 1 1/8" (28 mm) |
Combinations arrive partly or fully assembled depending on size and shipping method. Tell us the opening and we will confirm which grade your height needs and how the unit will be split for transport, before you price the crane time.
How large combinations are joined →Where a window has to serve as an escape route, three dimensions matter at once — clear width, clear height and clear area — and meeting two of the three is not enough.
Awning units and single tilt-only units cannot be used as escape windows at all, because the sash itself obstructs the opening. If an opening is designated for egress, it needs an operator that swings or turns clear.
The figures above are the manufacturer’s minimums for the product and are NOT a code citation. US residential egress under IRC R310 is a different set of numbers — 5.7 sq ft net clear opening, 24" minimum height, 20" minimum width — and your jurisdiction’s adopted code governs, not this page. Send us the opening schedule and the address and we will confirm in writing which units satisfy the code that applies to you.
Egress requirements in full →Installation details
Timber frame, masonry and board substrates, plus the splice joint used to ship large units in sections. Full CAD details on request.
Installation methods explained →Performance & Certifications
Values not listed are pending the manufacturer’s certified test report and are deliberately left blank rather than estimated.
Warranty
Our products are certified to:
Certificate numbers available on request.
VERIFIABLE NOWCPD DRN-M-8 · DRN-M-11 · DRN-M-15 · DRN-M-19 · DRN-M-21Search any of these at nfrc.org and you will read the same figures we publish.
Options
Finishes
Powder-coat finishes to the standard RAL card, plus anodized options. Wood interiors are available in several species and interior finishes.
Glazing
- Double- or triple-pane insulated glass
- Low-E1 / Low-E2 / Low-E3 coatings
- Argon fill
- Tempered and laminated build-ups
- Custom interlayer colours and patterns
Bay and bow assemblies
Both are built from the units on this page rather than being separate products, so the finish, glazing and hardware you specify here carry straight through into the assembly.
Units set at an angle to project out from the wall, which turns a flat elevation into a seat, a deeper sill or a reading corner. Built from 3 to 6 casement or tilt-turn units, each of which can be fixed or operating — so you can put opening lights only where you need ventilation.
Four or more units connected in a gentle outward curve rather than faceted angles. Reads softer than a bay and pulls light in from a wider arc. Available with casement, tilt-turn or picture windows.
Size and performance figures on this page are for the individual units. The structural limits of a specific assembly — how wide, how many lights, what header is needed above it — are confirmed by the factory against your opening, and we get that in writing before it is quoted.
Exterior finish
Finish options for this platform are confirmed at quotation. We have not published a colour chart for it because we do not hold documented availability, and a chart that turns out to be wrong at order stage is worse than a question.
Lead Time
- Standard configurations, such as a 70-series double-glazed unit: 18 days in the factory from order. This is production time and does not include shipping.
- Special configurations: 3–5 weeks in production, also from order.
- Ocean freight: about 35 days to the U.S. West Coast, about 45 days to the East Coast.
- Schedules are confirmed in writing at order. We build to your project timeline.
Downloads
Drawings & documentation
CAD window and door schedules, BIM models, performance documentation and installation details are prepared per project for trade accounts.
Request documentation →From our projects
Read all reviews →Customer statements from installed projects, quoted unedited.
“The windows have been a really positive experience. We like them a lot, And they seem really well made.”
“The windows are exactly what I am looking for and the quality is more than perfect. Thanks for your help.”
“Your windows are with very good quality and nice looking, and over all it is a great investment for us, thank you very much for your support.”
“Everything has been great so far! The team has had no issues installing which has allowed us to be ahead of schedule.”
