SOLUTION

Sound Insulation Performance Home is our haven – a place to unwind in serene comfort. For optimal relaxation: Daytime noise: ≤40 dB (comparable to a quiet office) Nighttime noise: ≤30 dB (whisper-quiet for sleep)Note: While Jiangsu standa...

Thermal Insulation Performance This performance metric evaluates a window/door's ability to resist heat transfer between environments with temperature differences when closed. It is quantified by: K-value (U-value in int'l standards): Heat transfer p...

Watertightness Performance Watertightness refers to the ability of windows and doors to resist rainwater penetration under combined wind and rain conditions when closed. Key ClarificationMany assume watertightness and airtightness are the same—...

Air Tightness Performance This performance metric measures air leakage through windows/doors per unit length of opening seams or unit area. It evaluates the assembly’s ability to block uncontrolled air infiltration when closed. ImportanceTherma...

Wind Resistance Performance his performance metric refers to the ability of exterior windows and doors to withstand wind pressure when closed, without experiencing: Structural damage (cracking, localized yielding, panel breakage, adhesive failure) Fu...