Metal Roof Antenna Interference

Common sources of over the air tv interference.

Metal roof antenna interference.

Interference from cellular towers. The coaxial cable comes wrapped in shielding usually consisting of metal and plastic. Shielding helps to reduce electromagnetic interference. However it is possible some blockage or scattering of signals may occur.

Does metal roofing affect radio tv reception in the house. Don t trap your antenna with any type of interference. With external antenna elevated a minimum of two feet from the metal roof you can be sure the reception will be captured and boosted. I use rabbit ear tv antenna to receive tv programs.

I sometimes use ham radio amateur radio as well. No one material will be the sole perpetrator. On using a metal roof as an antenna the joints between panels are likely not soldered and are likely to form corroded diode junctions that generate rfi. In a nutshell metal roof or not the type of building material is irrelevant the cell phone signal will be injected into the internal space via a special high quality cable.

Another culprit for poor reception is reflective surfaces. Another common place interference happens is from poorly shielded cables. A metal roof discourages the transfer of signal by reflecting it away from you. Does metal roof affect any of these.

If you have aluminum siding or a metal roof be sure to mount the sky outside away from the siding or above the metal roof if possible. A coaxial cable is used to transmit an over the air signal from the antenna to your television tuner. Image courtesy of wilson amplifiers. Those planning to install an antenna in their attic should also choose a different location if they have a radiant heat barrier or metal roof.

If you have a metal roof for instance make sure the outdoor antenna is mounted at least one meter about 3 3 feet above it to reduce any effects of interference. Thankfully there are special indoor antennae which will circumvent this problem and help you watch tv despite having metal roofs. Thus buildings with a metal roof or many metal components will face difficulty watching tv. Over the air antennas should never be placed in basements or in windows with metallic film security bars or mesh as this will obstruct signals.

So metal roofs don t actually interrupt cell phone reception. My fm radio also has an antenna. Beware too of radiant barriers if you ve mounted your tv antenna in the attic.