be installed only on specific portions of the roof?
A. Although some benefit will be derived by a partial installation of Polar-Ply, this is not recommended. Your benefit will be proportional to the amount of the roof area in which Polar-Ply is installed. Full benefit requires a complete envelope of the aluminum surface, including gables. Q. Can other materials be installed against Polar-Ply in the attic? A. No. An airspace must exist on the foil side of Polar-Ply in order to achieve radiant thermal shield benefits. Q. How long will Polar-Ply provide a radiant thermal shield before I need to replace it? A. One of the best features of Polar-Ply is that it does not require any maintenance, and its effectiveness does not deteriorate over time. Q. Is it possible to estimate the energy and cost savings I can expect with Polar-Ply? A. The impact of Polar-Ply (much like conventional insulation) depends upon the climate, and the heating and cooling habits of the homeowner. However, scientific tests show when building an energy-efficient home in
