What is the thermal insulation effect of aluminium foil insulation coil?

What is the thermal insulation effect of aluminium foil insulation coil?

1. High-purity aluminium foil has a high reflectivity and low emissivity, so it absorbs less infrared light from the sun and has a good thermal insulation effect.

2. The woven fabric and aluminium foil laminated coil you mentioned is mostly used for packaging, and the aluminium foil is easily oxidised at high temperatures and loses its thermal insulation effect;

The aluminium foil is brittle and easily broken, resulting in the coil losing its original thermal insulation effect. Such aluminium foil coils are everywhere.

3. There is a kind of imported heat-pulling film which uses polymer material and aluminium foil composite, so that the composite aluminium foil coil does not crack, and it is not easy to oxidize. Long-term has a very good thermal insulation effect, but the price is several times more expensive than the former.

The overall thermal insulation effect of aluminium foil is therefore very good. Aluminium foil can be used for thermal isolation in high temperature environments. It is mainly a barrier to high temperature heat radiation. By using the high reflectivity of the aluminium surface and the multi-layer reflection of the aluminium surface, a complete barrier to thermal radiation can be achieved. However, there is still a small amount of convective heat transfer through the air between the aluminium surfaces, etc. If complete thermal insulation is required, a multi-layer vacuum aluminium reflective insulation structure is available. I recommend that you use aluminium honeycomb panels for roofing, as they are moisture-proof and heat-insulating, environmentally friendly and economical, and have a high resistance to pressure.