One of the major benefit that is gained by the doors and windows will be the blockage of sun rays directly into the home. It is good to let the sun light come inside the home. But those direct rays might do harm to other things so windows have been used. This means that they can't fade your floors, tissue or anything on which the light shines. The good news is that the sunlight will still flow while the harmful rays are kept away, and the light is not affected by them.
