Blockout v Sunfilter v Lightfilter fabrics

The terms blockout, sunfilter, and lightfilter describe how different roller blind fabrics manage light, heat, and privacy. Here’s how they differ:

1. Blockout (a.k.a. Blackout) Fabrics

• Light control: Completely block light — 100% opacity.
• Privacy: Total privacy, both day and night.
• Use: Ideal for bedrooms, media rooms, nurseries, or any space where you want full darkness.
• Material: Often consists of multiple layers, including an opaque backing (usually acrylic or foam).
• Effect: Keeps rooms dark and helps insulate against heat and glare.

2. Sunfilter (a.k.a. Sunscreen or Solar Screen) Fabrics

• Light control: Allows filtered natural light in while cutting glare and UV rays.
• Privacy: Provides daytime privacy — you can see out, but others can’t easily see in (at night, the effect reverses when indoor lights are on).
• Use: Great for living rooms, kitchens, and offices, where natural light and views are desirable.
• Material: Open-weave polyester or PVC-coated fiberglass, with openness factors like 3%, 5%, or 10% (higher = more view/light).
• Effect: Reduces solar heat gain and protects furnishings from fading.

3. Lightfilter (a.k.a. Translucent) Fabrics

• Light control: Diffuses sunlight softly through the fabric — brightens a space without direct glare.
• Privacy: Offers full privacy (you can’t see through either way) but still allows natural light transmission.
• Use: Suitable for bathrooms, dining areas, or shared spaces where you want privacy without darkness.
• Material: Usually a single or double-layer polyester blend that scatters light.
• Effect: Creates a soft, glowing ambience.

Summary Table

In short:

• Blockout = total darkness and privacy.
• Sunfilter = view + glare and UV protection.
• Lightfilter = soft light + privacy without direct view.