PHI-certified passive component
Component 2491wi03 is certified at phB for the cool, temperate climate zone, with Uw 0.78 W/(m²·K) and installed Uw values meeting the certificate criterion of 0.85 W/(m²·K) or better.
PHI certificate 2491wi03 · configuration control required
90 mm full-FRP window · PHI component
FD90 fiberglass window for cold climates.
FD90 is a 90 mm fiberglass, GFRP or full-FRP casement and tilt-and-turn window system. Passive House Institute certificate 2491wi03 covers the Fengdu Passive GFRP 90 Series in the cool, temperate climate zone at class phB. The certificate records Uw 0.78 W/(m²·K) for the stated build; other sizes, glass or installation details require verification.
FD90Full-FRP casement window system
90 mmFrame construction depth
phBPHI efficiency class
0.78Certified whole-window Uw
2026Certificate valid through
FD90 · cold-climate engineering
Configuration control for cold-region envelopes.
PHI certification provides an independent component reference for passive-building use in the cool, temperate climate zone. FD90 is also positioned for cold-region, ultra-low-energy and nearly-zero-energy projects, subject to matching the certified build and verifying project size, glazing, edge spacer, hardware, joints and installation.
Profiles or glass-free CKD supply
The system can be quoted as qualified profiles or as a glass-free CKD package. Final glazing and assembly may remain local, subject to fabrication controls and the project specification.
Weather and acoustic control
Catalogue grades reach 9 for wind resistance, 8 for airtightness, 6 for watertightness and 5 for sound insulation.
Current PHI certificate · valid through 31 December 2026
PHI-certified for passive buildings.
The official Passive House Institute certificate identifies the certified window-frame component as Fengdu Passive GFRP 90 Series by Chongqing Xianju New Material Co., Ltd. It satisfies the component criteria stated in the certificate for the cool, temperate climate zone.
- Component ID
- 2491wi03
- Certified product
- Fengdu Passive GFRP 90 Series
- Climate / class
- Cool, temperate · phB
- Certified Uw
- 0.78 W/(m²·K), with Ug 0.70 W/(m²·K)
- Installed Uw criterion
- ≤ 0.85 W/(m²·K)
- Hygiene criterion
- fRsi=0.25 ≥ 0.70
What the certificate covers
Certificate 2491wi03 provides an independent thermal reference for the stated frame, glazing, warm-edge spacer, seals and installation conditions. Profile or glass-free CKD supply can keep glazing and assembly local, but the fabricator must preserve the qualified construction.
- Certified whole-window Uw 0.78 W/(m²·K) for the identified PHI configuration
- Pultruded full-FRP profiles avoid a continuous metal thermal path
- System-profile or glass-free CKD supply keeps final glazing and assembly local
Certificate scope is configuration-specific. Any quotation or project that cites PHI certification must match the certified frame build, glazing, warm-edge spacer, seals and installation conditions identified in certificate 2491wi03; destination-market approval remains separate.
Source-catalogue performance grades.
The grade values below are catalogue references for the FD90 system. They must be verified against the ordered specimen and the applicable local standard.
Opening configurations.
The 90 mm profile family supports the opening types listed below. Sizes, hardware and reinforcement requirements are checked for each schedule.
- Inward casement
- Inward tilt-turn
- Double casement
- Inward or outward door configuration
System reference specifications.
| System designation | FD90 / 90 Series |
|---|---|
| Construction | Pultruded glass-fibre reinforced composite (full-FRP) profiles |
| Nominal frame construction depth | 90 mm |
| Load-bearing profile wall | 3.0 mm |
| Maximum sash load | 130 kg |
| Catalogue frame Uf | 0.85 W/(m²·K) |
| PHI component certificate | 2491wi03 · phB · valid through 31 December 2026 |
| PHI certified whole-window Uw | 0.78 W/(m²·K), with Ug 0.70 W/(m²·K) |
| Glazing | Project-selected double- or triple-glazed insulating glass unit |
| Supply route | Qualified system profiles or glass-free CKD package |
Recommended cold-climate configurations.
Thermal values are reproduced from the supplied 2026 catalogue for the listed glass build-ups. Slash-separated values reflect the catalogue alternatives; units are W/(m²·K).
| Catalogue glazing | Glass Ug | Frame Uf | Window Uw | Hardware |
|---|---|---|---|---|
| 5 Low-E + 16A/Ar + 5 + 16A/Ar + 5 | 1.20 / 1.10 | 0.85 | 1.35 / 1.30 | Project schedule |
| 5 Low-E + 16A/Ar + 5 Low-E + 16A/Ar + 5 | 0.90 / 0.80 | 0.85 | 1.10 / 1.05 | Project schedule |
| 5 Low-E + 18A/Ar warm edge + 5 Low-E + 18A/Ar warm edge + 5 | 0.85 / 0.70 | 0.85 | 0.95 / 0.85 | Project schedule |
Qualification gate: catalogue thermal and performance values apply only to the identified configuration. Final claims must be confirmed for the ordered dimensions, glazing, spacer, hardware, seals, corner joints, installation node and destination-market test method.
Product FAQ
Technical questions.
Reference answers for early system selection. Final dimensions, components and performance are fixed in the project-specific technical package.
Is the FD90 FRP window PHI certified?
Yes. Passive House Institute certificate 2491wi03 covers the Fengdu Passive GFRP 90 Series for the cool, temperate climate zone at efficiency class phB, subject to the certificate scope and controlled configuration.
What is the certified FD90 whole-window thermal value?
The certificate records Uw 0.78 W/(m²·K) for the identified 90mm full-FRP window configuration. Ordered size, glazing, spacer, hardware, joints and installation must match the qualified build or be reverified.
Can FD90 be supplied for local window fabrication?
Yes, after project qualification. PINDÉ can scope system profiles or glass-free CKD supply with the controlled BOM, connection method, fabrication instructions and evidence pack required for the destination project.
Are fiberglass, GFRP and FRP different FD90 materials?
They are market terms for the same glass-fibre reinforced polymer material family used in the FD90 load-bearing profiles. The released resin, reinforcement, profile section and test configuration remain the controlling technical definition.
How is an FD90 fiberglass-window price prepared?
Pricing depends on the opening schedule, glass, spacer, hardware, colour, machining, supply format, packing, test scope and delivery term. PINDÉ quotes profiles or glass-free CKD separately from local glazing, conformity and installation.
Explore the range