0
As you should know, the purpose of insulation is to create dead air space. DEAD air does not transfer temperatures.
Wiki User
∙ 15y ago
Add your answer:
Earn +20 pts
What type of insulation has the highest R value?
As strange as it may sound dead or still air is one of the best insulators. Insulation such as fiberglass or rock wool and styrofoam work because they are fluffy with trapped air. If you have a sheet of four inch thick R40 fiberglass and squeeze it into a wall made of 2X3 studs you will have less R value than than a 3 inch piece of fiberglass insulation. So the highest R value goes to the insulation that traps the most dead air per inch of thickness and is installed propperly.
What are cavity walls?
Cavity wall insulation is used to reduce heat loss through a cavity wall by filling the air space with a porous material. By doing this the porous material absorbs all of the air and water and stops it from escaping the house or building.
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.
Why is air between a window important?
The air in a double pane window is insulation from cold weather.
Why is air good insulation?
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.
Why is there air space in a thermos bottle?
better insulation
Can plexiglas be used on the inside to insulate single paned windows?
Yes, even plastic bag can be used. You just need to create a space of dead air to cause insulation.
How does heat escape an empty warm house with loft and cavity wall insulation and new double glazing using energy transfer and how does the insulation reduce the rate of the heat loss?
Heat will always migrate through anything. The rate is the only thing we can control. Dead air space (motionless air) is the best natural insulator. Fiberglass insulation is used to try to trap as much air and hold it as motionless as possible. This is why you should never compress insulation; you're pushing out the trapped air.
How can vacuum flask keep hot things hot and cold things cold?
The statement of calling it a vacuum mean there a no atoms between a space without the atoms or molecules in this space heat can not be transferred. Without this transfer of heat things can not heat up or cool down.
What kind of products does Cellular Window Shades sell?
Cellular window shades is a type of windows shade. They have dead air spaces that provide further insulation value. There is only slight control over air flow though.
Does loft insulation reduce heat loss by conduction convection or radiation?
Insulation reduces heat loss by replacing air space with a less conductive material (insulation). Therefore the answer is conduction.
How does a polar bear protect itself from weather?
It traps air between its fur to provide insulation.
What type of heat transfer does adding insulation slow down?
Generally speaking, insulation slows the movement of thermal energy by convection. The dead air spaces in fiberglass insulation make it a good bet to put in walls and under roof spaces. Styrofoam coolers work because the many, many tiny air spaces in the styrofoam are places where air is trapped, and those are dead air spaces.
What is an alveolar dead space?
An alveolar dead space is the volume of air in the alveoli of the lungs which does not partake in gas exchange.
Why is plastic used in loft insulation?
Plastic. fiberglass. ceramic. cork, eider down is not the insulation... the insulation is the dead air in the small cells plastic is combustible, glass is not fiberglass is a better choice for habitable areas
What material is the best thermal insulator?
Dead air space, or motionless air.
Why space has no air?
Atoms of many gases exist in space, but they are not concentrated enough to provide a breathable atmosphere (air).
