The first is conduction, which is the transferring of heat between multiple objects that are in contact with one another. For example: a coffee carafe receives its heat from the element in the coffee maker.
Convection, or the transfer of heat through liquid or gas to a surrounding area or material is second. This is like the principle that hot air will rise, while cold air will fall ( the heat is redistributed)
The transferring of heat through electro-magnetic wave is the way of radiation! For example, this is how the Earth is heated by the sun.
The three principles above are the primary sources of heat transfer (heat loss), but there are also three secondary types of heat loss, listed below:
Moisture accumulation, or the absorption of moisture by insulation materials, will also cause direct damage to the insulation and inhibit it from doing its intended job. This will contribute directly to heat loss.
Air intrusion is caused when air manages to find its way into call cavities. It does not necessarily cause drafts within the building, but it does directly affect the insulation within your walls, causing damage to the insulation itself.
Air filtration can cause heat loss. The transferring of heat when air pressure is different between the inside and outside of a building - this can cause air to be forced in or out, dragging cold air in during winter months, and pulling cold air out in the summer months.
Because SIPs have closed cell insulation, many of these problems (such as moisture accumulation)
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