Deciphering the Significance of Openness Percentage

Solar shade fabrics are often described in terms of their “opacity” and measured by their “openness” percentage. These shades, including exterior solar shades, function similarly to roller shades. They are renowned for their ability to block UV rays effectively, ensuring privacy while still allowing a view of the outside. Moreover, they contribute to energy efficiency by regulating heat and light penetration, helping to lower energy bills by keeping interiors cool in summer and warm in winter.

The openness percentage denotes how tightly woven the fabric is, indicating the amount of light that can pass through. A lower openness percentage means a tighter weave, resulting in higher opacity and less visibility through the shade. Conversely, higher openness percentages indicate a looser weave and greater visibility.

For instance, a fabric with 1% openness has an opacity of 99%, meaning it blocks 99% of light. Dual or zebra shades offer even more flexibility, combining the features of solid roller shades and horizontal blinds. These shades feature alternating sheer and solid stripes, allowing for adjustable light and privacy control.

Understanding the Openness Factor:

• Low openness percentages (1% – 5%) provide superior UV protection and privacy but limit outward visibility.
• Medium openness percentages (around 10%) balance outside visibility with interior protection.
• High openness percentages (e.g., 14%) offer excellent visibility while reducing glare.

Regarding privacy during the day, solar shades effectively reflect sunlight, preventing outsiders from seeing into your home while maintaining visibility from the inside out. However, at night, when interior lights are on, the effect is reversed, with the light reflecting off the shade and obstructing outward visibility.