Zip screens can reduce wind-driven rain entering a balcony or terrace, but they are not a sealed wall or window system. Performance depends on the fabric, side-channel design, bottom detail and the direction and intensity of the rain.
Fabric makes a difference
Technical screen fabrics manage solar heat and airflow, while transparent mica creates a more enclosed visual barrier. Neither should be presented as a substitute for waterproof façade glazing.
Correct expectations
Use zip screens as shading and weather-control products. For spaces requiring complete waterproofing, drainage, glazing and structural enclosure should be evaluated separately.
Final product selection and dimensions should be confirmed through a professional site survey. Website calculations are preliminary estimates.
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