Miami (demonstration)

The screened lanai with no air in it

DemonstrationEdit the plan

When the table is open for working outside

Each month read on its 30th, or the last day of a shorter month · 2026
Work outside, through the year. The table is open for working outside 12:00 PM to 5:00 PM, every month of the year. 12 months open, 0 shut, 0 unanswered.JanFebMarAprMayJunJulAugSepOctNovDec12months open
  • Works
  • Tight
  • No
  • Unanswered

Rings run from 7 am at the centre to 7 pm at the edge. Schematic: A shape of the facts, not a picture of a particular date or a measured outline. Each month is its 30th, or the last day of a shorter month, not a promise about the other days.

The table is open for working outside 12:00 PM to 5:00 PM, every month of the year.

  • All year: open 12:00 PM to 5:00 PM. What it feels like is what closes it.

What it feels like is the commonest thing to end the day for working outside here.

The same year as a table
MonthOpenUsable hoursWhat decides it
January 3012:00 PM–5:00 PM5 h
February 2811:00 AM–5:00 PM6 h
March 3010:00 AM–5:00 PM7 h
April 309:00 AM–5:00 PM8 h
May 309:00 AM–5:00 PM8 h
June 309:00 AM–5:00 PM8 h
July 309:00 AM–5:00 PM8 h
August 309:00 AM–5:00 PM8 h
September 309:00 AM–5:00 PM8 h
October 309:00 AM–5:00 PM8 h
November 309:00 AM–5:00 PM8 h
December 3011:00 AM–5:00 PM6 hWhat it feels like closes it

The table for Work outside. October 30, 2026 at 4:02 AM, America/New_York. Now on this date. Confidence low. Cause: What it feels like is what stops it.

A screen you can actually see, for a couple of hours.

Work outside

The table does not work for working outside right now, and what it feels like is why.

“No” means the model does not support this use under the conditions being read. The controlling limits are listed below.

  • Past the limit What it feels like is about 48°F — 13°F under (at least 61°F)Estimate: Worked out, but at least one input was assumed rather than measured.

    The air is 62.0°F. It feels about 14 degrees cooler than the air, near 48°F.

    Two hours in the sun with a laptop is not work, it is endurance.

Still unanswered:Noise
Why it is unanswered
  • Noise. Nobody has told us what the noise is like here, and it is not something geometry can infer.

What would change this. This would change if what it feels like were measured rather than estimated, or if noise were measured.

Confidence low (53%). Treat this as a starting hypothesis, not an answer.

What this answer was built from
Use
Work outside
Place
The table
Weather
Hot and humid, long cooling season (scenario shape), scenario (from a published source)
Method
Traced geometry and radiation at this hour, measured against what this use needs

What next here

Testing a change

3 of 8 milestones. One thing is still in the way of privacy, sightlines and screening advice.

  1. Getting an honest answer3 of 4 done
    • Placed on the earth — done. The sun is in the right part of the sky for this address.
    • A spot to read — done. 1 spot is being read.
    • What stands in the way — done. 5 things are drawn, so the shade is worked out rather than assumed.
    • Who can see in — not done. Privacy is the most common reason a terrace goes unused, and it cannot be answered without knowing which windows look at it.
  2. Testing a changeyou are here0 of 2 done
    • A change tested — not done. Testing a change before buying it is the cheapest part of the whole exercise.
    • A forecast checked — not done. A forecast nobody goes back and checks is a guess with a date on it.
  3. Proving it well enough to spend money0 of 2 done
    • Corrected against reality — not done. After a couple of rechecks the model can be corrected against this specific garden.
    • Photographed — not done. A photograph is what turns a drawing somebody sketched into a drawing somebody can check.
  1. Mark the windows that look at this spot

    Being overlooked is one of the most common reasons a good terrace goes unused, and it is the one reading here that cannot be inferred from anything else.

    a tap per windowneeded for privacy, sightlines and screening advice
  2. Get this place to Annotated

    A photographic check on the mapped sightlines and geometry. That makes privacy estimates more credible, but does not replace measured dimensions. Right now: Sightlines drawn from mapped observers remain provisional until their positions and heights are checked. The drawn heights have not been verified against the actual place. What is missing: Photographs of the actual place: None annotated. A photograph is how a drawn height gets checked against a real one. Photographs that know where they were taken from: No photograph has a position and a bearing, so what is marked on them cannot become a measurement. Who can see in: Nobody marked. Privacy is a question about who sees in from where, and the product will not invent one.

    3 things left
  3. Test a change before you buy anything

    The plan is good enough to ask what a screen, a tree or a canopy would actually do here — including the ones that turn out to be a waste of money.

    a few minutes, nothing bought
3 more things worth doing here
  1. Add a second spot and compare the two

    One spot gives a verdict; two give a reason. Most of what is worth learning here is why one corner works at six and the other never does.

    one tap, then read across
  2. See how this spot changes through the year

    A terrace that works in July can be unusable in September for reasons that have nothing to do with temperature. The same geometry read in four seasons is the cheapest insight here.

    a read, nothing to enter
  3. Photograph the spot and mark what is in shot

    A photograph is what separates a drawing you sketched from a drawing somebody else can check. It is also how heights get corrected without a ladder.

    one photograph

How well this place is described

Mapped
  1. Quick
  2. Mapped
  3. Annotated
  4. Measured

Shade, sky view and daily light are computed from the geometry on this plan. Unmeasured dimensions remain estimates, not verified measurements.

Sightlines drawn from mapped observers remain provisional until their positions and heights are checked. The drawn heights have not been verified against the actual place.

To reach Annotated

  • Photographs of the actual place: None annotated. A photograph is how a drawn height gets checked against a real one.
  • Photographs that know where they were taken from: No photograph has a position and a bearing, so what is marked on them cannot become a measurement.
  • Who can see in: Nobody marked. Privacy is a question about who sees in from where, and the product will not invent one.

What that buys: A photographic check on the mapped sightlines and geometry. That makes privacy estimates more credible, but does not replace measured dimensions.

Everything that was checked
  • Quick A place on the earth: Miami (demonstration), with a time zone, which is what makes an hour an hour.
  • Quick Somewhere to read: 1 spot marked. A reading is a height at a place, and moving it moves the answer.
  • Mapped The things in the way: 5 objects drawn. The house counts, and so does the neighbour's.
  • Mapped What is underfoot: 1 of 1 readings sit on a mapped surface.
  • Mapped Where the property ends: Drawn, so the product can tell you when the cheapest fix stands on someone else's land.
  • Annotated Photographs of the actual place: None annotated. A photograph is how a drawn height gets checked against a real one.
  • Annotated Photographs that know where they were taken from: No photograph has a position and a bearing, so what is marked on them cannot become a measurement.
  • Annotated Who can see in: Nobody marked. Privacy is a question about who sees in from where, and the product will not invent one.
  • Measured Heights off a tape: 4 of 5 objects are measured. The remaining 1 are this product's own inference, so no figure here is a survey figure yet.
  • Measured Something checked against the day: Nothing has been checked against a real afternoon. The model is unopposed, which is not the same as being right.

What to measure next

Ranked by how far the answer moves, not by a checklist
  1. 1Who can actually see inSit in the chair

    Sit where you actually sit and look around. Mark the one window or path you can see a person from. Until one exists, privacy is a question we are not answering rather than one that is fine.

    This is not a refinement. Nothing can answer this question until somebody marks it.

    Currently assuming: nobody is overlooking this. Tested across one confirmed observer changes the whole privacy answer.

  2. 2What you are looking atSit in the chair

    Mark the direction of the view worth keeping. No view has been marked yet, so nothing weighs what the view is worth, and a screen that blocks it looks free.

    This is not a refinement. Nothing can answer this question until somebody marks it.

    Currently assuming: no view is being protected. Tested across one corridor changes what screening is worth doing.

Drawn
Worked out
Lanai floorThe house15 ft 1 inLanai roof10 ft 6 inSouth screen9 ft 6 inEast screen9 ft 6 inWest screen9 ft 6 inThe table9121518N16 ft
BuildingNot yours (dashed edge)CanopySun’s path today (schematic)Can see inProposed

To scale · to the measurements given: Drawn to scale from the measurements given. Not a survey. It is not a survey.

Reading at

4:02 AM·October

The sun is down.

October 30 · The table Schematic: A shape of the facts, not a picture of a particular date or a measured outline.
  • Works (solid)
  • Tight (lined)
  • No (pale, edged)

The table comes back into the sun at 7:29 AM, once the East screen is no longer in the way. The table loses the sun at 9:00 AM because of the Lanai roof. The table comes back into the sun at 5:08 PM, once the West screen is no longer in the way. The table loses the sun at 6:39 PM.

The evidence behind this whole day is thin, so nothing on the strip is marked out as worse than the rest. The shape of the day is still the model’s best reading; the confidence in it is low, and it stays low until something it needs is measured.

The table is open for working outside 9:00 AM to 5:00 PM.

About 8 hours in October.

The same day as a table
The same day hour by hour, in text.
HourSunVerdictConfidenceSun position
12:00 AMdarkNoa starting hypothesis
3:00 AMdarkNoa starting hypothesis
6:00 AMdarkNoa starting hypothesis
8:00 AMin sunNoa starting hypothesis6° up, bearing 109°
9:00 AMin sunWorksa starting hypothesis19° up, bearing 116°
10:00 AMshaded by Lanai roofWorksa starting hypothesis30° up, bearing 126°
11:00 AMshaded by Lanai roofWorksa starting hypothesis40° up, bearing 139°
12:00 PMshaded by Lanai roofWorksa starting hypothesis47° up, bearing 157°
1:00 PMshaded by Lanai roofWorksa starting hypothesis50° up, bearing 178°
2:00 PMshaded by Lanai roofWorksa starting hypothesis48° up, bearing 200°
3:00 PMshaded by Lanai roofWorksa starting hypothesis41° up, bearing 219°
4:00 PMshaded by Lanai roofWorksa starting hypothesis32° up, bearing 232°
5:00 PMshaded by Lanai roofWorksa starting hypothesis20° up, bearing 242°
6:00 PMin sunWorksa starting hypothesis8° up, bearing 250°
9:00 PMdarkTighta starting hypothesis
When the sun arrives and leaves, to the minute.
WhenWhat happens
7:29 AMThe table comes back into the sun at 7:29 AM, once the East screen is no longer in the way.
9:00 AMThe table loses the sun at 9:00 AM because of the Lanai roof.
5:08 PMThe table comes back into the sun at 5:08 PM, once the West screen is no longer in the way.
6:39 PMThe table loses the sun at 6:39 PM.

Direct sun at the table, month by month

Schematic · computed: Computed from this place's own plan and climate, then drawn as a shape rather than to scale.

The table gets the most direct sun in February, about 4 hours on the 30th, or the last day of a shorter month, and the least in March, about 2 hours.

  • Sun reaches the spot (solid)
  • Sun up, something in the way (lined)
  • Sun down (empty)
The grid, in a table
Hours of direct sun at The table on the 30th, or the last day of a shorter month, and when.
MonthDirect sunWhen
January3 h8:00 AM–9:00 AM, 5:00 PM–7:00 PM
February4 h7:00 AM–9:00 AM, 5:00 PM–7:00 PM
March2 h8:00 AM–9:00 AM, 7:00 PM–8:00 PM
April3 h7:00 AM–9:00 AM, 7:00 PM–8:00 PM
May3 h7:00 AM–9:00 AM, 7:00 PM–8:00 PM
June3 h7:00 AM–9:00 AM, 7:00 PM–8:00 PM
July4 h7:00 AM–9:00 AM, 7:00 PM–9:00 PM
August2 h8:00 AM–9:00 AM, 7:00 PM–8:00 PM
September3 h8:00 AM–9:00 AM, 6:00 PM–8:00 PM
October3 h8:00 AM–10:00 AM, 6:00 PM–7:00 PM
November4 h7:00 AM–9:00 AM, 4:00 PM–6:00 PM
December2 h8:00 AM–9:00 AM, 5:00 PM–6:00 PM
The sun’s path on the plan, October 30, in a table
Where the sun is at each hour it is up.
HourComes fromHeight
8:00 AME (109°)6° up
9:00 AMSE (116°)19° up
10:00 AMSE (126°)30° up
11:00 AMSE (139°)40° up
12:00 PMSE (157°)47° up
1:00 PMS (178°)50° up
2:00 PMS (200°)48° up
3:00 PMSW (219°)41° up
4:00 PMSW (232°)32° up
5:00 PMSW (242°)20° up
6:00 PMW (250°)8° up

What the place is doing at 4:02am in October

Hot and humid, long cooling season (scenario shape).

What it feels like

Estimate: Worked out, but at least one input was assumed rather than measured.cool

48°F

Felt temperature

The bar is the 0–100 reporting scale, mapped from the reading above: 0 is none of it, 100 the top of the scale.

The air is 62.0°F. It feels about 14 degrees cooler than the air, near 48°F.

What is doing it

What makes this reading 48°FA running total. It starts at 58°F with every named influence removed, then each influence is added in turn.58°Fshaded air−10°FHow much s…+0°FAir moveme…48°Fwhat it is

Take every named influence away and this reads 58°F. How much sky is overhead takes off 10°F, Air movement adds 0°F. That lands at 48°F.

How this was worked out
Air
62.0°F from Hot and humid, long cooling season (scenario shape), scenario (from a published source)
Radiant
27.2°F mean radiant temperature
Method
Six-directional radiation integration, then ASHRAE operative temperature (from a published source)

Direct sun

Worked out: Computed from the geometry, the sun and the weather you gave it.after dark

0 W/m²

Beam reaching this point

The bar is the 0–100 reporting scale, mapped from the reading above; the tick is where this use stops working.

The sun is down.

How this was worked out
Sun
below the horizon
Traced
0% of the beam reaches this point

Glare

Worked out: Computed from the geometry, the sun and the weather you gave it.none

0

On the 0–100 reporting scale: 0 is none of it, 100 the top of the scale. Not a measurement.

The bar is the 0–100 reporting scale, mapped from the reading above; the tick is where this use stops working.

Nothing bright is in the line of sight at this hour.

How this was worked out
Facing
180deg

Privacy exposure

Unanswered: Something this depends on has not been given, so nothing is being guessed.

No observer has been placed yet. Privacy is a question about who can see in from where, and until one is marked there is nothing to answer.

Wind

Estimate: Worked out, but at least one input was assumed rather than measured.still

1 mph

Wind at the seat

The bar is the 0–100 reporting scale, mapped from the reading above: 0 is none of it, 100 the top of the scale.

South screen is taking about 60% of the wind off this spot.

What is doing it

  • South screen

    −0.9 mph
  • Lanai roof

    −0.5 mph
How this was worked out
Reference
5.5 mph at 10 m from Hot and humid, long cooling season (scenario shape), scenario (from a published source)
At seat height
1.9 mph before shelter
Shelter
60% removed by what stands upwind

View

Unanswered: Something this depends on has not been given, so nothing is being guessed.

No view worth keeping has been marked, so there is nothing to weigh a screen against yet.

Surface heat

Estimate: Worked out, but at least one input was assumed rather than measured.comfortable

62°F

Surface temperature

The bar is the 0–100 reporting scale, mapped from the reading above: 0 is none of it, 100 the top of the scale.

The surface is running about 62°F.

How this was worked out
Surface
Lanai floor
Method
Absorbed shortwave against air temperature, flattened by air movement (from a published source)

Wetness

Estimate: Worked out, but at least one input was assumed rather than measured.dries-fast

1 × the open

Drying time against the open

The bar is the 0–100 reporting scale, mapped from the reading above: 0 is none of it, 100 the top of the scale.

Still air here; moving air does a surprising amount of the drying.

How this was worked out
Drying rate
0.000 in/hour here
Method
Penman combination equation on the radiation and air actually reaching this spot (from a published source)

Light after dark

Estimate: Worked out, but at least one input was assumed rather than measured.contained

0 lux

Light on the seat

The bar is the 0–100 reporting scale, mapped from the reading above: 0 is none of it, 100 the top of the scale.

Light is on, and nobody has been marked who could see it.

How this was worked out
Fixtures
1 placed
On the seat
0.0 lux
Spill
0% of output leaves sideways or upward

Ask something else about this place

Everything on the plan, in text
ThingReadingStandingNote
The house15 ft 1 inYou said so: You told us this, and it beats what the model worked out.100 per cent solid.
Lanai roof10 ft 6 inMeasured: Taken with a tape, a compass or a clock at the place.90 per cent solid.
South screen9 ft 6 inMeasured: Taken with a tape, a compass or a clock at the place.35 per cent solid.
East screen9 ft 6 inMeasured: Taken with a tape, a compass or a clock at the place.35 per cent solid.
West screen9 ft 6 inMeasured: Taken with a tape, a compass or a clock at the place.35 per cent solid.