LOCKED
excellent execution discipline
LDD-17 · Soffit Lighting + Serviceability
One-line intent
The building glows, not shines — and zero-demolition maintenance forever.
Locked decisions
- Concealed linear LEDs · full perimeter coverage
- Secondary minimal downlights as needed
- Soft wash · no hotspots · default warm white
- RGB only for events (not default)
- Aluminum channel system · bottom-access snap-on diffusers
- 16'–24' channel segmentation (failed segment doesn't strand long run)
- Drivers always indoors — never in soffit, never exterior-exposed
Open items / engineer review
- Driver pocket location strategy (hinged access panels in interior walls)
- LED tape spec: 24V, CRI ≥ 90, density 60/120/240 LEDs/m
- Diffuser depth + lensing (spread angle, hotspot risk)
- Heat dissipation in aluminum channel
- Wet rating for exterior soffits (IP65 min)
- Cleaning regimen documentation
Cost drivers
Aluminum channel + diffuser + LED tape: $35–70/lf installed. Perimeter ~360' exterior + ~200' interior = ~560 lf. Driver pockets + commissioning $4–8K. Total: $25–50K (part of LDD-08 lighting budget).
Air-gap concerns
- "Indoor drivers, accessible" needs an actual access strategy — hinged panel, removable wood panel. Specify per pocket.
- Aluminum channel thermal contact — if LED tape isn't pressed firmly, lifespan halves.
- Hot dim-to-warm bands — if 2700K default but evening wants warmer (~2200K), spec dim-to-warm now or rerun 560 lf later.
- Exterior soffit wet rating — IP65 min; difference from indoor-rated is $2–5/lf.
- Replacement parts stockpile — buy 10% spare tape + 4–6 spare drivers at commissioning.
Cross-references
→ Outputs to
LDD-23 execution discipline