How does the broken bridge casement window achieve a perfect balance between sealing and ventilation?
Publish Time: 2025-04-05
The broken bridge casement window achieves a balance between sealing and ventilation through multiple means such as structural design, sealing technology, and ventilation optimization, which not only ensures the comfort of the indoor environment, but also meets the needs of air circulation.1. Structural design: Casement opening improves ventilation efficiencyInside and outside casement design: The window sash can be opened inward or outward, with a large opening angle (usually up to 90°), forming a large ventilation area, which increases the ventilation volume by more than 30% compared with the sliding window.Convection ventilation layout: By adjusting the position of the window sash, the air forms a convection path. For example, stagger the positions of the two windows on the opposite wall, or use the side windows of the L-shaped corner window to form a through wind.2. Sealing technology: Multi-channel sealing improves air tightness and water tightnessOuter sealing: The EPDM rubber strip on the outside of the glass opening sash is pressed with the profile sub-frame to block the intrusion of wind and rain.Insulation strip sealing: The protruding position of the insulation strip is closed with the duckbill rubber strip to block water vapor and breeze.Inner sealing: The sub-frame rubber strip is closed with the inner side of the opening fan to block the evaporation and reflux of residual water.Sealing strip material: EPDM sealing strip is used, which is resistant to aging and corrosion, and has a long-lasting sealing effect.3. Ventilation optimization: Detailed design takes into account both ventilation and sealingHigh-transparency gauze: The high-transparency gauze with finer wire diameter is selected to increase the air permeability by more than 20%, while maintaining the anti-mosquito function.Hidden drainage system: The drainage structure is designed based on the principle of pressure balance, and the inclined stepped drainage outlet is designed downward to ensure smooth drainage and prevent rainwater from backflowing.Adjustable ventilation volume: By adjusting the opening angle of the window sash (such as partially opening the top-hung window), the ventilation volume is controlled to prevent wind from blowing directly onto the human body.4. Performance advantages: synergistic effect of sealing and ventilationHeat insulation: PA66 nylon insulation strips are built into the broken bridge aluminum profile to form a "cold and hot bridge section", which effectively prevents heat conduction and reduces air conditioning energy consumption.Sound insulation and noise reduction: Multi-chamber structure and multi-layer sealing design, air sound insulation can reach 30-40dB, resisting external noise interference.Security and anti-theft: Multi-point locks (such as two-point locks, sky and earth locks) are used, combined with anti-fall rope design to ensure the stability and safety of window sashes.5. Practical application: meet the needs of different scenariosHigh-rise residential buildings: strong resistance to wind pressure deformation, better air tightness than aluminum-plastic windows, suitable for high-rise buildings with large wind pressure.Street-side residential buildings: significant sound insulation effect, can reduce traffic noise, and ensure indoor quietness.Humid areas: anti-condensation and anti-frost design, effectively separate water vapor cavity, avoid damp windowsills and floors.6. User cases and data supportVentilation effect: The ventilation area of a single casement window can reach 0.8-1.2 square meters, which meets the ventilation needs of general rooms.The heat transfer coefficient value is tested to be 2.23-2.94W/(㎡·K), with significant energy-saving effects, which can reduce heating and cooling costs.Service life: Broken bridge aluminum profiles have high tensile and shear strength, are durable and require almost no maintenance.Broken bridge casement window achieves a balance between sealing and ventilation through technical means such as casement opening, multi-channel sealing, high-transparency gauze, and hidden drainage. Its core advantages are:Efficient ventilation: large opening angle and convection ventilation design to improve air circulation efficiency.Excellent sealing: three-channel sealing structure and high-quality sealing strips ensure air tightness and water tightness.Comprehensive performance: thermal insulation, sound insulation, anti-theft, wind pressure resistance and other performances are better than traditional windows.Choosing a broken bridge casement window can not only enjoy comfortable ventilation, but also ensure the quietness and safety of the indoor environment. It is the preferred solution for modern homes.
