Silver Lining Windows & Siding

Understanding Energy Transfer.....
In order to understand radiant barrier technology, it is important to review what makes you hot or cold, and how it happens in nature. The proper term to use is ENERGY TRANSFER. There are only three modes of energy transfer: CONDUCTION, CONVECTION, RADIATION.

• CONDUCTION is direct heat flow through matter, such as the conduction of heat from the hot surface of a stove to a cooking pot.

• CONVECTION is the transport of heat within a gas or liquid caused by the actual flow of the material itself, such as heat traveling upward with the natural upward movement of air.

• RADIATION is the transmission of electromagnetic rays through space. These rays have no temperature, only energy. Every material or object with a temperature above absolute zero emits these rays in all directions, in a straight line, until they are deflected or absorbed

What is a Radiant Barrier?
Polar-Ply Radiant Barriers are aluminum foil reflective materials that are installed in residential or commercial roofs to increase energy efficiency by reducing solar heat gain. This reduces the radiant heat gain to ducts and insulation located below the radiant barrier. Installing a radiant barrier "tent" in an attic space deflects radiated heat from the roof. It blocks the roofs heat from radiating to the ceiling below.

How it works!
Radiant energy from the sun penetrates your roof and builds up heat in you attic. Shingles, insulation and conventional roof sheathing don't stand a chance against this intense heat transfer. In the summer, attics can reach temperatures of 150-170 degrees and transmit that heat into you home.
Radiant heat makes your home uncomfortably warm and causes your air conditioning to work harder and longer to achieve the desired comfort.Polar-Ply Radiant Barriers's unique pure aluminum foil sheet prevents 97% of the summer radiant heat from entering your attic, reducing attic temperatures up to 50 degrees. Living areas and air conditioning ductwork stay cooler so less energy is required to maintain comfort. As solar heat increases, radiant barriers effectiveness goes up.

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