Does Emf Radiation Penatrate Metal Siding

There are more subtle reasons for not having metal roofing or siding particularly aluminum siding.

Does emf radiation penatrate metal siding. Nothing blocks low frequency emf. I have neither tested or used the emf underlayments. A thick brick wall will stop most of it a metal sheet will stop it completely. A 95 enclosure will still allow electro magnetic radiation to get in provided that the opening is larger than the wavelength of the radiation.

Penetration depth is a measure of how deep light or any electromagnetic radiation can penetrate into a material. The same kind of problems can happen with metallic shielding if not installed carefully. Air ducts and siding made of metal. Just ask anyone that has put a metal roof on their home and tries to get a cell phone signal.

Of course more intense doses such as putting a cellphone right up to your head will cause the radiation to penetrate deeper. However you do need to remember that although aluminum does block emf radiation it does not absorb it. In fact it will penetrate anything brick metal concrete and you without any trouble. Aluminum foil and ordinary aluminum window screens make good radiation shields.

It is very difficult to isolate all metal electrical boxes from the metal siding but if that can be successfully done then it is not a problem from an emf standpoint. Frequently asked questions about electromagnetic shielding. This can cause high levels of electric and magnetic radiation in a house possibly even shocking the people living there. Electromagnetic radiation can be blocked by any conducting material as the free electrons moving in the material adjust to neutralize the field see wikipedia faraday cage or faraday shield.

Metal is fantastic for shielding purposes. Rf and microwave emf radiation travel in straight lines. I suspect they are effective but there are a great many other benefits to metal roofing here. The tests used one to three bricks and the results show that bricks were less effective in blocking emfs at a lower frequency.

We are simply showing that skin is a good absorber of microwave radiation and that very little of ambient level microwaves. It is defined as the depth at which the intensity of the radiation inside the material falls to 1 e about 37 of its original value at or more properly just beneath the surface. Copper conducts best but aluminum almost as well and steel a little less. They prevent beneficial energies coming from outside from entering the home.

Therefore you are only protected if there is a material capable of blocking the radiation directly between you and the source of the radiation. An ideal faraday cage is enclosed in metal conductive material on all 6 sides including the floor. Radio frequency radiation is blocked by many materials.