Houses are built in such a way so that they can halt most of the harmful Ultraviolet rays. Protection of your houses from the harmful rays of the sun is very vital. For this purpose, external shading of the sun in the building facade is generally associated with restraining the transfer of heat from outside to the interiors of your house. Without these, the windows solely don’t offer protection from all the sun rays and might not counter the exposure to sun and possible skin damage by these UV rays.