Within the blinds industry, a ‘blackout blind’ is a roller blind with opaque chemically layered fabric. The best results come when it’s running through inside a cassette. The fabric runs within side channels to block out all light around the edges. No one can guarantee a 100% block out the daylight but we assure a 99% daylight block using a zipper channel. However, a normal blackout roller blinds protect your 100% privacy but you can block only 80 to 85% daylight only. Go through our blackout image gallery to understand more.