2007-09-07 04:23:50 · 6 answers · asked by Anonymous in Science & Mathematics ➔ Weather
There are several factors here that you do not mention in the question. Will try to answer them for you.
The simple answer is it will lessen the amount of frost but not totally prevent it.
In the case of an awning, 20 feet high, with open sides, there would be plenty of area where the exposed surface of the car is exposed to the open sky. Thus, infrared (IR) radiation to space would still occur but not to the degree of what it would if the awning wasn't there. So in that case the skin temperature of the car would be lower (slightly) than the air temperature and all other things being equal would cause frost to form when frost is likely. (Clear, calm nights with temperatures near the dew point.)
Now if the awning is more enclosed (or attached to the side of a building) or with
sides partially down, then this would decrease the amount of IR radiation loss and make frost less likely. What would help improve the awning was the installation of a barrier that would prevent IR radiation loss. This could be some as simple as a thin sheet of Styrofoam that is attached to the inside of the aluminum awning.
Hope this helps you.
2007-09-07 05:37:12 · answer #1 · answered by Water 7 · 0⤊ 0⤋
If there is adequate humidity and the temperature is cold enough then yes - you will have frost, the awning is not relative. Believe me, I've been to Utah.
2007-09-07 05:25:58 · answer #2 · answered by AnnieAOaklie 1 · 0⤊ 0⤋
In general, the answer is yes. You only need adequate humidity and cold enough temperatures. If you get both in the same place, you'll have frost.
A 20-foot high awning won't influence the air temperature enough to make a difference.
2007-09-07 04:30:46 · answer #3 · answered by El Jefe 7 · 0⤊ 0⤋
Not necessarily unless the night moisture (dew) falls on your car. When the frost melts on the awning, it will drip on your car and leave white spots.
2007-09-07 04:31:53 · answer #4 · answered by Laredo 7 · 0⤊ 1⤋
Unless the awning is enclosed, you will get frost, only being in an enclosed area can you avoice any frost..
2007-09-07 13:51:00 · answer #5 · answered by trey98607 7 · 0⤊ 0⤋
Probably, since frost really does not discriminate.....as someone who shovels a foot of snow off the car on a regular basis, your getting no sympathy from me.
2007-09-07 04:29:18 · answer #6 · answered by LoneStarLou 5 · 0⤊ 0⤋