FG95 door system brings the highest thermal performance in the GFRPU range to entrance and terrace door applications. Sharing the same 95 mm frame platform and glazing system as the FG95 window series, it delivers U-values as low as 0.8 W/(m²·K) with dual warm-edge triple glazing — combined with Grade 9 wind resistance, Grade 8 airtightness, and certified fire-rated performance in single and double-leaf configurations.
GFRPU door profiles · 95 mm system · passive ultra-low energy fire-rated series
Glass Fiber Reinforced Polyurethane (GFRPU) door system · 95 mm frame · triple glazing · U-value down to 0.8 W/(m²·K)
The FG95 door system brings the highest thermal performance in the GFRPU range to entrance and terrace door applications. Sharing the same 95 mm frame platform and glazing system as the FG95 window series, it delivers U-values as low as 0.8 W/(m²·K) with dual warm-edge triple glazing — combined with Grade 9 wind resistance, Grade 8 airtightness, and certified fire-rated performance in single and double-leaf configurations.
Thermal conductivity
0.34 W/(m·K)
vs. aluminum 160 W/(m·K)
Flexural strength
≥ 1,200 MPa
~5× aluminum · vs. PVC 30 MPa
Flexural modulus
41.3 GPa
vs. PVC 2.2–5 GPa
Density
2.1 g/cm³
25% lighter than aluminum (2.79)
Thermal expansion
0.5–0.8 × 10⁻⁵ /K
vs. aluminum 2.2–2.4 × 10⁻⁵/K
Dimensional shrinkage
≤ 0.2%
ΔT 40°C deformation only 0.15 mm
Glass fiber content
70–82%
PU + additives 18–30%
Carbon footprint
1/8 of aluminum
Manufacturing process emissions
Performance advantages
Thermal conductivity 470× lower than aluminum · flexural strength ~5× aluminum · failure temperature >1,100°C vs. aluminum ~680°C · forms carbonized fire curtain · sound insulation ≥ 40 dB · dimensional shrinkage ≤ 0.2% · stable from −40°C to +80°C
Engineering & fabrication advantages
Pultrusion process · straightness ≤ 0.25 mm/m · Euro-groove hardware compatible · CNC-machinable · coating adhesion ≥ Grade 1 · weathering life ~1.5× aluminum powder-coat · corrosion-resistant for coastal environments · LEED / BREEAM / Passivhaus compatible
| Property | Aluminum | GFRPU (this product) | Nylon thermal break | PVC | Polyester FRP |
|---|---|---|---|---|---|
| Density, g/cm³ | 2.79 | 2.1 | 1.3 | 1.5 | 1.9 |
| Thermal conductivity, W/(m·K) | 160 | 0.34 | 0.30 | 0.35 | 0.45 |
| Flexural strength, MPa | 250 | ≥ 1,200 | 80–180 | 30 | 300–400 |
| Flexural modulus, GPa | 50–80 | 41.3 | 2–5 | 2.2–5 | 10–22 |
| Dimensional shrinkage, % | 0.6 | ≤ 0.2 | 0.4 | 0.4 | 2 |
| Linear expansion, 10⁻⁵ K⁻¹ | 2.2–2.4 | 0.5–0.8 | 2.4–3.5 | 5–8.5 | 0.73 |
Orange column = GFRPU (this product). All values from material comparison testing. GFRPU leads in thermal conductivity, flexural strength, and dimensional stability.
> 1,100°C
Failure temperature
vs. aluminum ~680°C melting point. Furnace temperature exceeds 800°C within 10 min of fire testing.
Carbon curtain
Carbonizes on combustion
Thermoset matrix + >70% glass fiber forms a stable carbonized layer — structurally blocks flame spread.
0.5 – 1.5 h
Fire integrity (EI 30 / EI 60)
Meets fire-resistance requirements while simultaneously satisfying energy-efficiency targets.
280°C
ccPVC fails at just 280°C
GFRPU's inorganic glass fiber matrix provides structurally superior fire behavior at every stage.
Series: FG95 · Door · 95 mm frame depth | Door types: Single-leaf door (inward or outward opening) · Double-leaf door (wider entrance and terrace applications)
Fixed performance — all glazing configurations
Wind load
Grade 9
GB/T 7106
Watertightness
Grade 6
GB/T 7106
Airtightness
Grade 8
Highest class
Sound insulation
≥ 40 dB
Grade 4 · GB/T 8485
Best U-value
0.8
W/(m²·K)
Glazing configurations & thermal performance
Glazing
5 Low-E + 18Ar + 5 Low-E + 18Ar + 5
U-value W/(m²·K)
1.0
Wind
9
Water
6
Air
8
Glazing
5 Low-E + 18Ar + 5 Low-E + 18Ar + 5 · warm edge
U-value W/(m²·K)
0.9
Wind
9
Water
6
Air
8
Glazing
5 Low-E + 18Ar (WE) + 5 Low-E + 18Ar (WE) + 5
U-value W/(m²·K)
0.8
Wind
9
Water
6
Air
8
Lower U-value = better insulation. Wind (Grade 9), watertightness (Grade 6), airtightness (Grade 8), and sound (Grade 4) are consistent across all three configurations. Config C achieves U = 0.8 W/(m²·K) with dual warm-edge spacers on both cavities — meeting the most demanding Passivhaus and near-zero energy building requirements.
Custom project enquiry
Have a specific project in mind?
Tell us your opening dimensions, performance requirements, and glazing preferences — our technical team will recommend the right series and configuration for your project.
| Test item | Industry reference | Our standard |
|---|---|---|
| Straightness per 1 m | 0.40 mm | ≤ 0.25 mm |
| Straightness per 3 m | 3 mm | ≤ 2 mm |
| Perpendicularity | 0.6% | ≤ 0.4% |
| Wall thickness tolerance | ± 0.2 mm | ± 0.2 mm |
Straightness and perpendicularity tolerances match the high-precision grade of aluminum extrusion — a recognized industry benchmark for window profile fabrication accuracy.
Multiple finish options
Gloss, matte, and textured surfaces via proprietary coating. Consistent color, no pinholes or cracks.
Coating adhesion
≥ Grade 1
Color shift E ≤ 5 after ≥ 6,000 h accelerated weathering.
Weathering lifespan
1.5× aluminum powder-coat
Coating durability approximately 1.5× that of standard aluminum alloy powder-spray finish.
Coastal corrosion resistant
Suited for high-salinity coastal environments where aluminum or steel corrodes prematurely.
Fire-rated performance
GFRPU frame meets EI 30 / EI 60 requirements for ultra-low energy, fire-rated building envelopes.
U-value down to 1.3 W/(m²·K)
Dual Low-E triple glazing meets passive house and NZEB thermal envelope targets.
Grade 8 airtightness
Highest GB/T 7106 class — minimizes infiltration losses and supports low-energy HVAC sizing.
Sound insulation ≥ 40 dB
Suited for urban, transit-adjacent, and institutional projects.
3 opening configurations
Casement, top-hung, and combination — all within the same 60 mm GFRPU frame system.
Euro-groove hardware compatible
Works with standard European hardware — no proprietary fittings required.
FG95 Door Series — Technical Data Sheet
Full performance specs · GFRPU door profile cross-section drawings · installation guidelines
Test Reports & Certifications
GB/T 7106 · fire-rating documentation · Intertek sound test report · available upon request
Standards: GB/T 7106 (wind load, watertightness, airtightness) · GB/T 8485 (sound insulation) · EN-standard test reports available upon request.
