This is a tricky question, because all fiberglass shingles are a form of asphalt shingles in Phoenix, AZ. They differ, however, in that they are a lighter, higher grade shingle than regular shingles.
Before I begin with asphalt, you should consider some other elements of shingles before you question asphalt, because it may not even be asphalt shingles that are right for you.
It most certainly depends on where you live and how long you plan on living there. Metal shingles, while less common, are easy to place, can resist high winds and storms due to weight, and can last up to 50 years without needing repair. These are preferable for commercial buildings that require longer standing for larger buildings.
Wood shingles are great for keeping good insulation, and work well in arid climates, where they will not expand with water. The downside is that they often need repairs, are not super resilient to strong winds, and are not safe against fires. This is ironic, being that arid climates are nothing short of a tinderbox. Wood shingles are still a great choice if you want to keep bugs out of your house, and if you want to be environment friendly!
Asphalt shingles are the most common. This is because they are the most cost efficient (affordable), and the easiest to repair. They are pretty lightweight, fiber glass shingles being the lightest in weight, and they are easy to carry and place atop the roof. This is pretty important, because you are being charged for the Phoenix roof repair man’s manual labor, so the less amount of work will save you some money. They are usually the cheapest choice and the easiest to carry and place atop the roof. They are pretty good with insulation and can last longer than wood. Fiber glass is slightly better in condition so there would be less in repairs. I would say, because it is still cheaper than many of the other shingles, to put in the extra buck for fiber glass asphalt shingles.
Allstate Roofing, Inc. – Phoenix Location