Why buy the Certainteed CT-20
This is a ONE PIECE fiberglass base shingle for those who need the most economical shingle they can get. It will install fast as they are relatively light. Most vendors do not even stock them at the XT25 shingle from Certainteed can usually be found around the same price. Limited color options at the 3 year only SureStart Warranty will persuade many homeowners to look elsewhere.