F-Series · Fiberglass
GR65 Dual Action Window
The slimmest fiberglass window in the range: a 65 mm dual-action frame drawn as tight as pultruded fiberglass allows, for the maximum glass and daylight in an apartment or dorm elevation.
Frame
Pultruded fiberglass · 65 mm
Opening
Dual Action
Glass package
Double or triple · up to 36 mm
Whole-window U-value
0.14 Calculated
Certified: third-party tested (NFRC, CSA)
Calculated: LBNL THERM / WINDOW
Project-specific: by size and glass
A tilt-turn window on a narrow 65 mm fiberglass frame. It tilts for secure trickle ventilation and turns fully inward for cleaning and egress, all from one handle, while the slim sightline keeps the elevation quiet and lets in as much light as possible.
Technical specifications
| Frame depth | 65 mm |
| Frame material | Pultruded fiberglass, powder-coated |
| Glazing pocket | Up to 36 mm |
| Opening | Dual action / tilt-turn, inward |
| Whole-window U-value | 0.14 W/m²K Calculated |
| SHGC | 0.20–0.50 by glass Project-specific |
| Air infiltration | Tested to AAMA / NFRC Project-specific |
Certified values are published as NFRC and CSA testing completes. Calculated values come from LBNL THERM and WINDOW models of the specific assembly. Project-specific values depend on size and glass package.
Glass & glazing options
Double or triple · up to 36 mm. Low-E and solar-control coatings, warm-edge spacers, argon or krypton fill, laminated and acoustic packages to suit the project.
Hardware
German tilt-turn hardware with concealed hinges and multi-point locking. Handle finishes in nine anodized and powder-coated options — see Finishes.
Sizes & configurations
Single and coupled multi-lite arrangements. Maximum sizes are governed by the weight of the glass package and, for the A-Series, the design wind load; see drawings for limits.
Drawings & details
Head, jamb, and sill sections, anchoring and interface details, and DXF profiles available on request while the drawing library is finalized.
Installation
Rough-opening tolerances, substrate requirements, and air-barrier interface guidance follow the F-Series installation manual. See Air Barrier Interface and Installation.
Downloads & resources
Spec sheet, NFRC label (on certification), and BIM objects will be posted here. Ask us for the current data package for your project.
