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RossThe axial wall in a Class 2 cavity preparation refers to the internal wall that is parallel to the long axis of the tooth, extending from the pulpal floor to the cavosurface margin. It provides support and resistance against occlusal forces. It also helps in retaining the dental restoration material in place.
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How does cavity wall insulation reduce energy transfer?
Cavity wall insulation reduces energy transfer by filling the cavity between the walls with a material that has low thermal conductivity, such as foam or mineral wool. This helps to prevent heat from escaping the building in cold weather and entering the building in hot weather, leading to reduced heating and cooling costs.
How does cavity wall insulation reduce heat loss?
Cavity wall insulation reduces heat loss by filling the gap between the inner and outer walls of a building with a material that has low thermal conductivity, such as foam or mineral wool. This helps to prevent heat from escaping through the walls, making the building more energy efficient and reducing the need for heating.
Is cavity wall insulation conduction convection or radiation?
Cavity wall insulation primarily works by reducing heat transfer through convection, as it traps pockets of air within the wall cavities. Some types of insulation may also use materials that reduce heat transfer through conduction and radiation.
Why is cavity wall insulation better than air in the cavity between the walls of a house?
Cavity wall insulation can significantly reduce heat loss by providing a barrier that helps to trap heat inside your home. This can lead to lower energy bills and a more comfortable living environment by keeping the property warmer. In contrast, air in the cavity between walls can allow heat to escape more easily, as air is a poor insulator.
What is the Minimum wall cavity size for insulation?
The minimum recommended wall cavity size for insulation is typically around 2 inches to allow for proper installation of insulation material and to achieve the desired level of thermal performance. Insulating smaller wall cavities may still be possible with specialized insulation products, but it may be less efficient and effective.
