It is not recommended to put metal sheets at strategic places around your house to prevent microwaves from entering. Microwaves, as emitted by microwave ovens, are a specific type of electromagnetic radiation that operates at a frequency of around 2.45 gigahertz. They are designed to be contained within the oven itself and have safety mechanisms such as metal shielding and a sealed door with a metal mesh screen to prevent leakage.
However, it's important to note that regular household objects, including walls, floors, and windows, naturally block most of the microwave radiation from entering your living space. Microwaves are non-ionizing radiation, which means they have lower energy compared to ionizing radiation such as X-rays or gamma rays.
Placing metal sheets around your house may not effectively block microwaves, and it can potentially cause other issues. Metal sheets can reflect and bounce microwaves in unpredictable ways, leading to interference and potentially damaging effects. Additionally, blocking microwaves can also interfere with your ability to use wireless devices such as Wi-Fi, cell phones, and other communication systems, as they also rely on electromagnetic radiation.
If you have concerns about microwave radiation leakage, it is best to ensure that your microwave oven is in good working condition and properly sealed. Follow the manufacturer's guidelines for usage and maintenance, including regular inspections and repairs by qualified technicians if needed.