JINWU GLASS FIBER CO.,LTD.

Analysis of Light and Heat Performance Differences of Sunshade Fabrics with Different Openness Rates

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    The openness rate of sunshade fabrics directly determines their light-shielding, air permeability, and thermal regulation performance. Different pore ratios can meet diverse application scenarios.

     

    sunshade screen fabric openness

    0% Openness Rate (Fully Enclosed Fabric)

     

    Provides 100% light-shielding, completely blocking ultraviolet (UV) and visible light.

     

    Suitable for bedrooms or cinemas requiring total darkness.

     

    Drawback: Poor air circulation due to fully closed structure, prone to stuffiness in summer.

     

    1%-3% Openness Rate (Micro-Porous Fabric)

     

    Maintains over 90% light-shielding rate while enabling air convection through micron-sized pores.

     

    Effectively blocks direct sunlight and enhances energy efficiency when used with air conditioning.

     

    Commonly applied in external sunshade systems of office buildings.

     

    5% Openness Rate (Semi-Transparent Fabric)

     

    Allows soft diffused light to enter while blocking strong glare, balancing light transmission and space transparency.

     

    UV blocking rate remains above 85%.

     

    Ideal for commercial showrooms or open-plan offices.

     

    10% Openness Rate (Highly Transparent Fabric)

     

    Creates visible light spot transmission, suitable for spaces requiring natural daylighting with reduced sunlight intensity.

     

    Filters 50%-70% of solar radiant heat; paired with indoor plants, it creates a comfortable light-shadow ambiance.

     

    Common in cafes, sunrooms, and other leisure spaces.

     

    Practical Considerations: Integrate building orientation, climatic conditions, and usage requirements to achieve optimal balance of light and heat environments through precise control of openness rates.


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