Blackout shades block 100% of light when properly installed, while room darkening shades typically block 95-99%. For North Palm Beach homes where early morning sun can be particularly intense, this difference matters significantly.
True blackout requires both the right fabric and proper installation techniques. Room darkening shades use slightly lighter fabrics that filter most light but don’t eliminate it completely—you’ll still see some light penetration, especially around edges.
If you’re trying to create sleeping conditions for shift workers, young children, or home theater use, blackout is worth the investment. For general light control and privacy, room darkening shades may be sufficient and often cost less.