Blackout lining is completely opaque and will cut out all the light. Some light may be visible on the edges of your curtain or blind. For roman blinds, some pinpricks of light will be visible where the fabric is sewn to the battens.
Blackout lining also helps keep the heat out in the summer and keeps the heat in during the winter!
1-250-478-2112 786 Goldstream Ave, Victoria BC. V9B 2X6