Superior Insulation

Crafted using a six-component pentane foaming process, our 40mm panels feature a core density of ≥45kg/m³. The thermal conductivity (λ) of the PU foam is approximately 0.022–0.024 W/(m·K), achieving an overall heat transfer coefficient (U-value) of 1.0 W/(m²·K).

Note: A lower U-value means better insulation. Our rating (≤1.5) qualifies as a high-efficiency insulated door, whereas single-layer doors (U-value ≥5.0) offer virtually no thermal protection.

Acoustic Comfort & Longevity

The fine, uniform closed-cell structure (≥90% closed-cell rate) provides sound insulation up to 23dB. The stable foam density prevents delamination and hollowness over time. With a compression strength of 150-200kPa, the door is resistant to deformation, ensuring a service life of 15-20 years. We prioritize stability and silence over extreme density for residential use.

Wind Resistance

Engineered for safety, our doors can withstand wind speeds of 25m/s under standard installation. Enhanced structures with reinforced back ribs can resist up to 30m/s. The wind load capacity is optimized through a combination of panel strength, track systems, and professional installation.