Interestingly, radiant heat isn’t the only kind of energy that can be reflected by foil. Similar types of materials are used to reflect radio frequencies, or RF. Both heat and RF energy have wavelengths found on the same electromagnetic spectrum, and therefore are reflective in similar ways to foil. Concerns in recent years over corporate espionage, WiFi hacking, TEMPEST, video and audio surveillance, and other forms of RF criminal exploitation have given rise to a whole host of new technologies to thwart these activities. Radiant barrier has been upgraded to RF foil, or rFoil, which provides the following benefits:
- Shields against radio frequencies ranging from 10GHz to 100GHz;
- Blocks up to 96% of radiant heat transfer, which keeps heat in during the winter and out during the summer;
- Reduces heating and cooling bills;
- The foil can be reinforced for increased strength, typically to the point of being impossible to tear under normal conditions;
- Compared with normal insulation, it is much easier to install; and
- A perforated option is available, which allow for vapors to escape and to enhance breathability, without compromising performance, but vapor blocking rFoil is also available.
For an assessment of what rFoil can do for your building, contact the professionals at Signals Defense in Owing Mills, MD. The company has been lending its expertise to the business and intelligence communities in all manner of RF shielding technology for almost 20 years, and their experts can assess your needs and make specific recommendations.