Turning the Tide in the Battle Between Buildings and Cell Phones One of the greatest challenges in today’s office environment is having perfectly acceptable outside cell signal that’s blocked from getting inside by steel, concrete, and low-e glass. The same materials that block heat (solar infrared energy) from entering your office building also block other long-wave electromagnetic radiation, including wavelengths used by cellular devices. The result is that you can be carrying on a conversation just fine outside as you walk to work, but suddenly drop your call the minute you step inside the building. Other buildings may have acceptable cellular voice and data coverage in certain areas (especially closer to exterior walls), but “dead zones” in certain spots, especially in the center

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