Composite or synthetic roofing shingles are made of a mixture of several commonly used roofing materials such as fiberglass, recycled paper products and asphalt. Composite shingles are fire resistant and don't have problems with moisture. As an extra incentive, many companies manufacture a shingle that is resistant to mold growth and algae. Also, if damaged, composite shingles can be replaced on an individual basis. Composite roofing does not crack, split, peel or warp and comes in most any color, shape or size which makes them a highly versatile choice.