Window-covering term

Top-down/bottom-up

A shade configuration that can open from the top, bottom, or both to balance daylight and privacy.

Why it matters

The operating layout is product-specific, so automation and repair assumptions require exact documentation.

Last reviewed: 2026-08-06 · Editorial basis and linked source records.

A configuration intended to reduce incoming light substantially without necessarily eliminating edge gaps.

A light-control configuration designed to minimize incoming light using opaque material and attention to edge coverage.