The best protection against heat gain and loss can be achieved by using radiant heat barrier insulations. Prodex Total radiant heat barrier will keep your building cool in summer, warm in winter and dry all year!
Prodex Total Radiant Heat Barrier:
- Takes Advantage of low thermal conductivity of air.
- Has enclosed air spaces with emmitance surfaces
- Has a mass insulation component (closed cell polyethylene foam for example).
- Has an E (emmitances) of 0.03 (the lower the E the better).
Radiant heat barriers are now a common part of most insulation systems. This is because we now recognize that radiant heat energy is the primary source of heat-flow. The best radiant heat barriers will provide: a radiant heat barrier, vapor barrier and reflective insulation (R value). Prodex 48 Inch has all 3 of these features. This radiant heat barrier is composed of 5mm (1/4 inch) closed cell polyethylene foam sandwiched between two 99% pure aluminum, low emissivity surfaces.
Radiant heat barriers reflect back infra-red energy from the sun so it does not penetrate the building. It can also reflect back radiant heat inside a building so it does not escape. Mass insulations (fiberglass, cellulose, rigid board, spay, rock-wool etc) are made to resist or impede the flow of warm air. Every unit of radiant heat energy that is reflected away from your building in summer and each unit reflected back inside during winter means less use of your air conditioning and heating systems, less wear and tear on your equipment, and less money you pay in utility costs.

The R-values of radiant heat barriers and mass insulation are based on the same fundamental equations.
Radiant heat is the transfer of heat (infra-red radiant energy) from a hot surface to a cold surface through air or a vacuum. Radiant heat is the dominant method of heat transfer in a building accounting for 65-85 percent of all heat transfer through walls, ceilings, attic and floors. Radiant heat insulation is an effective barrier against radiant heat transfer because it reflects back almost all of the infrared radiation striking its surface and emits very little of the heat conducted through it. Radiant heat barrier products also incorporate trapped air spaces as part of the system to retard the convective flow of heated air the way fiberglass insulation does. The total thermal performance of the radiant heat system varies with the size and number of enclosed radiant barrier spaces within the building cavity.