Several months ago I gutted the ceilings of my second floor and also the perimeter walls of my house. When the new sheetrock was installed I added a layer of copper mesh fabric that will significantly reduce my exposure to harmful EMF radiation.

Once that work is complete a base layer of pure silicate paint (like YShield Max54) will be applied which alone can reduce attenuation by 70%. Note this is not for EMP protection but general EMF protection.