Light spill
7 / 100
Prefer shielded task lighting before adding more ambient brightness everywhere.
What changes at night?
Does this place still work when the glass turns reflective and every light changes the sightline?
Balance useful light, glare, privacy and atmosphere after sunset.
Reads the same property record as every other instrument.
9:00 PMUSE ZONE
Worksmedium confidence · 72%
After dark, the sightline and the lighting relationship change together.
94/100 fit for this use
The first thing breaking the space is privacy exposure. privacy exposure is 69 against a 60 comfort limit for this use.
Why this answer?
UseHave people overuser
SpaceWest patio · faces Wuser
Solar sample2° altitude · 302° bearingcomputed
Modeldeterministic exposure thresholds + one-change effectsheuristic
This instrument's own intelligence
After dark, light becomes part of privacy
Night use is not daytime comfort with the sun removed. Bright surfaces, windows and task lights change who can see whom and how glare behaves.
Night privacy
69 / 100
A screen that was optional by day may become useful only during the evening use window.
One change at a time
What should you try before you buy?
Ranked for this exact place, use, month and hour. We isolate one change first so you can tell what caused the improvement.
Before / after
Move the seat
Now94
With change97
Solves
privacy exposure
Tradeoff
some view is traded away
Watch for
circulation, door swings, new sightline
Cross-system consequences
improves: direct sun · improves: privacy exposure · improves: view corridor
Reference basis
NOAA National Centers for Environmental Information
This is decision support, not engineering.
Structural design, code compliance, drainage engineering, electrical work, HVAC sizing and guaranteed plant or material performance stay outside this instrument. When the answer depends on one of those, the product should stop and tell you what professional fact is missing.