CertainTeed Corp., Valley Forge, Pa., developed three new VHS/DVD recordings to help roofing installers and to educate homeowners about the process of replacing wood shake roofs: "Installing Presidential Shake and Presidential TL," "Replacing Your Shake Roof," and "Flintlastic SA Application Guidelines." In the first video, contractors can watch real-life application by professional installers. The second video is angled towards homeowners who need to replace their wood shake roof. The third video is primarily for contractors who are unfamiliar with the Flintlastic SA product. Each video is around 15 minutes long and can be acquired by calling 800-404-9880.