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Air is not a good conductor of heat because it, being a gas with only a few particles in a big space, cannot store much energy by volume as it doesn't have much material in which to store the energy.
However, air can move heat by convection, which means by moving and circulating it can transport the heat from one place to another. Because air moves with very little resistance it can easily move a lot of heat this way.
So air is good insulation only if it is in very small pockets where the air cannot circulate easily. A lot of insulators actually trap tiny pockets of air to create insulation, such as foam or even fine knitted clothing.
Wiki User
∙ 15y ago
Wiki User
∙ 12y agoair is a good insulator as it is a non metal.mostly metals are a good conductor.
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Does dead air space provide insulation?
As you should know, the purpose of insulation is to create dead air space. DEAD air does not transfer temperatures.
Can you over insulate your walls What happens when you place larger batts of insulation in a smaller place?
Putting thicker insulation in than will fit will make it less efficient. Any insulation needs to have air separating the layers of insulation.
The amount of fuel used to heat and cool your home can be reduced by good what?
Good insulation and good draught proofing are essential to reduce fuel use.
Why is air between a window important?
The air in a double pane window is insulation from cold weather.
Is straw a good form of insulation?
Straw (the leftover stems of the wheat or other cereal grain after the grain is harvested) is not a particularly good insulation for a building. The idea of insulation is to create trapped air spaces, preferably lots of them. Since straw does not usually pack very well (except in a baler), it's difficult to force it to create the kind of trapped air that fiberglass batts, for example, will make. It's better than nothing, but not much. It also MUST be treated with a fireproofing chemical.
What is air good for?
for thermal insulation
Is a sponge a good insulation?
it is good heat insulator, as it has air in it. as air is a good insulator of heat, the sponge, which has lots of pockets of air also becomes a good insulator
Why are potholders good insulation?
Air pockets hold heat, so they probably have a lot of them.
How does air a bad conductor of heat help in winter?
Foam material makes good insulation.
What is the best way to heat and cool your home?
Good insulation in the attic and walls. Central air.
How the thickness of loft instulation affects heat loss?
The thicker the loft insulation the less heat escapes The thicker the loft insulation, the more trapped air there is which helps to keep heat in as air is a good insulator.
In Over Head Transmission Line How air is providing most of Insulation as per Wikipedia Please Clarify?
Air is not a good conductor
Why do air spaces make good insulation?
Because air may be a fine convector, but it's a relatively poor conductor of heat.
Why is old putty good for insulation?
I am not sure where you heard this but the thickness of old putty against the thickness of insulation for r-value is not as good. The best insulator is air. Fiberglass insulation has a high r-value because of the air it holds not the fiberglass itself. So that's why you don't cram 6in fiberglass into a 4in space, it does not work when you compress it.
How does the thickness of the insulation affect heat loss?
The thicker the insulation, the more heat is kept in your home. This is because inside the insulation are tiny air bubbles, witch are not good conductors of heat. This means that the heat energy can not pass through it.
Does dead air space provide insulation?
As you should know, the purpose of insulation is to create dead air space. DEAD air does not transfer temperatures.
Why is there loft insulation?
There is loft insulation to keep in all the warm air from the heater
