One of the most common materials that are used for roofing here in the United States is asphalt shingles. They are used for many reasons. They are fairly inexpensive to purchase. Installation is very easy as well. They can actually be installed on top of your existing shingles. Lastly, when it comes to durability, they will outlast many other roofing materials as long as you give them some attention and care.
So, what type of care do you need to give asphalt shingles to keep them in good shape? Due to the textured surface, it is possible for mold and moss to start growing on them. To avoid this from happening, you should cut back trees that have branches that extend over the roof, since the shade can encourage mold and moss growth. You should also try to keep the roof as dry as possible. This means that you should clear off any collections of leaves and branches that will allow water to gather on your roof.