[tomwed]

A house is a big investment. Find a street that is north and south. Walk down the street and look down the row of houses and the lanais in the back will be facing east and west. See which ones have more enclosed lanais or if they are equal. Let us know what you find out.

[rustyp]

Originally Posted by tomwed

A house is a big investment. Find a street that is north and south. Walk down the street and look down the row of houses and the lanais in the back will be facing east and west. See which ones have more enclosed lanais or if they are equal. Let us know what you find out.

I did the walk. l looked down the row. I found the west facing lanai cousins - kissing lanais.

Originally Posted by rustyp

I did the walk. l looked down the row. I found the west facing lanai cousins - kissing lanais.

This is an entirely different issue than whether they face east or west. We have a CYV so it does not come into play at all.

[tomwed]

Originally Posted by fw102807

This is an entirely different issue than whether they face east or west. We have a CYV so it does not come into play at all.

Do owners enclose lanai's on a CYV?

[JSR22]

Originally Posted by tomwed

Do owners enclose lanai's on a CYV?

I know a number of people who enclosed CYV lanais.

[tuccillo]

Relative humidity is not a very useful measure because of it's temperature dependency. Dewpoint is a much better quantity to work with. 90 and 90% relative humidity is not common as it translates to a dew point of 87, which is pretty rare (at least around here). Dewpoint is a measure of the actual amount of evaporated water in the air. Relative humidity is "relative" to the maximum amount of water vapor that the air can hold and has an exponential relationship to temperature.

For example, 95F with a relative humidity of 50% doesn't sound too bad but it is actually very miserable with a dewpoint of 76F. 70F with 90% relative humidity is pretty comfortable because the dewpoint is in the mid 60s.

Dewpoints above 75F: pretty muggy
Dewpoint below 50F: very comfortable

Originally Posted by rustyp

To show a temperature graph without a humidity graph Vs how hot do you feel is almost meaningless. I will illustrate. We used to environmentally test our products for certification worldwide. Three zones are pretty much considered within normal ranges for to get the certification
1- standard = 72 degrees F and 45% relative humidity
2- cool = 60 degrees F 20% rh
3- hot = 80 degrees F 80 % rh
We had operators paid to run the equipment usually in 10 - 12 hour shifts. When at 80/80 the operators got paid a differential like shift workers would get paid for a night shift.
90 degrees F 10% rh is very comfortable 90 degrees F 90% rh unbearable to me.

[tomwed]

Originally Posted by JSR22

I know a number of people who enclosed CYV lanais.

Would you know in what direction the lanais face? I have a theory.

[rustyp]

Originally Posted by tuccillo

Relative humidity is not a very useful measure because of it's temperature dependency. Dewpoint is a much better quantity to work with. 90 and 90% relative humidity is not common as it translates to a dew point of 87, which is pretty rare (at least around here). Dewpoint is a measure of the actual amount of evaporated water in the air. Relative humidity is "relative" to the maximum amount of water vapor that the air can hold and has an exponential relationship to temperature.

For example, 95F with a relative humidity of 50% doesn't sound too bad but it is actually very miserable with a dewpoint of 76F. 70F with 90% relative humidity is pretty comfortable because the dewpoint is in the mid 60s.

Dewpoints above 75F: pretty muggy
Dewpoint below 50F: very comfortable

////

We had friends with a 2 br CYV who enclosed their lanai because they needed the extra room, I am not sure what direction it faced. We have a west facing lanai that we just expanded.

[JSR22]

Originally Posted by tomwed

Would you know in what direction the lanais face? I have a theory.

Interesting! South and West

[tuccillo]

As I stated, this combination is rare as it translates to a dewpoint of 87 (which is rare, as the sort of density stratification that this causes is very conducive to thunderstorms in the absence of a strong capping inversion). We occasionally will hit dew points in the low 80s but dew points in the upper 80s occurs in a limited number of locations around the world.

Full disclosure: undergraduate and graduate degrees in atmospheric science, developer of numerical weather prediction models for NASA and the National Weather Service.

Originally Posted by rustyp

As stated in my post 90 degrees F and 90% RH =RELATIVE HUMIDITY.

Originally Posted by tuccillo

As I stated, this combination is rare as it translates to a dewpoint of 87 (which is rare, as the sort of density stratification that this causes is very conducive to thunderstorms in the absence of a strong capping inversion). We occasionally will hit dew points in the low 80s but dew points in the upper 80 occurs in a limited number of locations around the world.

Full disclosure: undergraduate and graduate degrees in atmospheric science, developer of numerical weather prediction models for NASA and the National Weather Service.

And in this scenario an east facing lanai would be just as uncomfortable as a west facing lanai.

[tuccillo]

Except for the case of a westward facing lanai where the sun is shining directly on you. In that case it would be even more miserable ;-). I have lived in the south for 25 years and have only owned homes with east or northeast facing lanias (by design).

Originally Posted by fw102807

And in this scenario an east facing lanai would be just as uncomfortable as a west facing lanai.

Originally Posted by tuccillo

Except for the case of a westward facing lanai where the sun is shining directly on you ;-)

Touche! On those days I am sure I will just stay in my air-conditioned rooms and enjoy my lanai on another day.

[tuccillo]

Bingo, AC is good! We have 6 months of terrific weather and 6 months of "AC weather".

Originally Posted by fw102807

Touche! On those days I am sure I will just stay in my air-conditioned rooms and enjoy my lanai on another day.