Any material high in resistance to heat transmission that, when placed in the walls, ceiling, or floors of a structure, and will reduce the rate of heat flow.
EXAMPLE:
Most walls have insulation installed in them.
INSULATION
Any material high in resistance to heat transmission that, when placed in the walls, ceiling, or floors of a structure, and will reduce the rate of heat flow.
EXAMPLE:
Most walls have insulation installed in them.