Most residential houses in Canada are asphalt shingles. Asphalt roof shingles are highly economical for many reasons. They can be purchased in a wide range of sizes and colors thickness and quality. Because they are easily cut with a hook blade or exacto knife. And fastened with nail and hammer, or more common today is to use a roofing coil nailer for quicker coverage. Asphalt roof shingles are compatible with all kinds of roofing and kinds of roofing slopes. Once a roof is down there are usually no problems fro years to come. We do not recommend going over a covered roof, it is always better to strip it down the the substrat. Any Vancouver Roofing Contractor can provide all kinds of asphalt roof shingles and related services, including installation, repair, and maintenance, for affordable prices. Best Roofing Prices Vancouver 604-761-1518Re-roofing shingle to shingle material and laborrooffix.ca/