Roof underlayment is a vital layer of protection installed beneath roofing materials. It acts as a moisture barrier, shielding your home from rain, snow, and wind-driven water. Whether you're using shingles, tiles, or metal roofing, quality underlayment enhances durability and prevents leaks. It's especially important in areas with extreme weather. Investing in proper roof underlayment not only extends your roof's life but also provides peace of mind during every season.