High-low level waterproof, soundproof and airtight window

Wind resistance: Wind resistance of more than 360 kgf/m².
Air-tightness: Ventilation volume less than 2 m³/hr.m².
Water-tightness: Water-tightness exceeds 75 kgf/m². (Highest national standard is 50 kgf/m²).
Sound insulation: STC=36dB、Rw=36dB. 

• Suitable for high class residences, villas, hotels, office towers and other areas with a need for high quality sound insulation.
• The external frame is 80mm wide and has a dual hollow cavity extruded aluminum structure that prevents deformation of the cement fillet caulking while providing excellent wind resistance.
• The lower horizontal bar of the external frame has a high-low level design based upon the principles of fluid dynamics, this gives a window that is resistant to wind and rain and has excellent water drainage with zero water leakage.
• The joints of the external aluminum frame are reinforced with standard metal fittings to improve the load strength of the window frame. Adjustable screws can also be added to reinforce the metal fittings and window fixtures.
• Premium grade long-lasting SANTOPRENE anti-weathering airtight strips are situated in the space between the internal and external frames to provide superb air-tightness and sound insulation.
• The design allows dismantling from the inside for safe, easy and reliable cleaning.
• Axle mounted stainless steel and wear resistant single (or double) rollers can be used to make minor height adjustments to the inner screens. Even large window screens can be easily operated with no fear of wear.
• A 3-point interlocking airtight handle set may be installed for the inner window sashes to improve sound insulation and water- and air-tightness.
• Innovative dynamic anti-drop fittings with highly flexible plastic guide vanes are used for the screens that prevent them from falling off, making their use safe and easy.
• We recommend (5 + 5mm) laminated safety glass with a PVB elastic gel membrane between the glass sheets that reduces structural resonance and damps the amplitude of sound waves at all frequencies. The end result is better safety, security, sound insulation, heat insulation, and UV shielding.