
F-Series · Fiberglass
GR145 INOWA Sliding Door
The minimal-sightline sliding wall: a 145 mm system engineered for the narrowest possible meeting stile, so a run of glass reads almost frameless when closed.
Frame
Pultruded fiberglass · 145 mm
Opening
Sliding
Glass package
Triple · up to 52 mm
Whole-window U-value
0.15 Calculated
Certified: third-party tested (NFRC, CSA)
Calculated: LBNL THERM / WINDOW
Project-specific: by size and glass
Engineered for the slimmest interlock in the range, so the eye meets glass rather than frame. The deep fiberglass section still carries triple glazing across a wide span and seals down for Passivhaus-grade air and thermal performance.
Technical specifications
| Frame depth | 145 mm |
| Frame material | Pultruded fiberglass, powder-coated |
| Glazing pocket | Up to 52 mm |
| Opening | Sliding, minimal interlock |
| Sightline | Narrowest in the F-Series |
| Whole-window U-value | 0.15 W/m²K Calculated |
| Seal | Low air-leakage |
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
Triple · up to 52 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.




