According to roofers, asphalt shingles cover two-thirds of American roofs. The material has an average lifespan of 30 to 40 years. With so much of it currently in use and even more nearing the end of its service life, there …
According to roofers, asphalt shingles cover two-thirds of American roofs. The material has an average lifespan of 30 to 40 years. With so much of it currently in use and even more nearing the end of its service life, there …