We chose ONDURA to re-roof these shelters because we knew the installation would be easier and faster than working with asphalt shingles, and the ONDURA roofs we installed fifteen years ago have held up well and still look good. We re-roofed one of the shelters today that had shingles on it, and one person was able to complete the project with ONDURA in one-fourth the tim eit would have taken with new shingles. And we like the red color, which will help people find these shelters in the densely forested campgrounds.