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Thermal insulation

Thermal insulation is the reduction of heat transfer between objects in thermal contact or in range of radiative influence. Heat transfer is the transfer of thermal energy between objects of differing temperature. The means to stem heat flow may be especially engineered methods or processes, as well as suitable static objects and materials.

Heat flow is an inevitable consequence of contact between objects of differing temperature. Thermal insulation provides a means to maintain a gradient of temperature, by providing a region of insulation in which heat flow is reduced or thermal radiation is reflected rather than absorbed.

In building construction, insulating materials are assigned a quantitative measure of the insulating capability, called the R-value.

In thermal engineering of insulating systems for ovens, reactors, and furnaces, thermal conductivity (K), product density and specific heat (C) are the key product characteristics, which influence insulating efficiency, such as acolodet insulating.

Low thermal conductivity (K) is analogous to high insulating capability (R).

Eagle Shield Insulation - Thermal bridge

Thermal bridges are points in the building envelope that allow heat conduction to occur. Since heat flows through the path of least resistance, thermal bridges can contribute to poor energy performance. A thermal bridge is created when materials create a continuous path across a temperature difference, in which the heat flow is not interrupted by thermal insulation. Common building materials that are poor insulators include glass and metal.

Eagle Shield Radiant Barrier terms and definitions:

Baffles

Device to maintain a ventilation space between the insulation and roof deck, assuring air flow from the eave/soffit vents to ridge vent or other roof vents provided in attics and cathedral ceilings.

Bedding Compound

A plastic material (mastic) used to imbed insulation. Acts as a cushion, anti-abrasive and adhesive.

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ICC

International Council of Building Code Officials (ICBO). The ICBO code organization was combined with BOCA and SBCCI to form the International Code Council (ICC).

SBCCI

Southern Building Code Congress, International (SBCCI). The SBCCI code organization was combined with BOCA and ICBO to form the International Code Council (ICC).

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