Insulation is used generally to lessen the rate of heat transfer from areas of high temperature to those at a lower temperature. The capability of a material to lessen this movement of heat is known as its thermal resistance or R-value. Insulation materials are rated based on this R-value and higher the R-value the longer it takes for heat to go through the material. In cold weather insulation retains the heat inside the home; in warm weather it lessens the rate at which the outside heat moves to the cooler interior. Insulation affects the entire three modes of heat transfer that is to say conduction, convection and radiation.
Subscribe to:
Post Comments (Atom)
No comments:
Post a Comment