CertainTeed's Belmont Algae Resistant Shingles are the ideal roofing solution for homeowners who are looking for a durable and reliable roofing option that is also resistant to unsightly algae growth. These shingles are made from high-quality materials that are specifically designed to resist the growth of algae and other environmental factors that can impact the appearance and performance of a roof. One of the key features of CertainTeed's Belmont Algae Resistant Shingles is their Underwriters Laboratories (UL) classification. This classification means that these shingles meet strict industry standards for quality, safety, and performance. The UL classification is a third-party certification that ensures the shingles are safe and reliable for use in roofing applications. In addition to their UL classification, CertainTeed's Belmont Algae Resistant Shingles are also backed by a 15-year algae resistance warranty. This warranty ensures that the shingles will remain resistant to algae growth for a period of 10 years, providing homeowners with peace of mind and confidence in their roofi...See Moreng investment. The installation process for Belmont Algae Resistant Shingles requires fastening, steep slope and flashing requirements are special because of the thickness, design, and weight of the product, and they can be easily installed on both new and existing roofs. In terms of cost-effectiveness, CertainTeed's Belmont Algae Resistant Shingles are a great investment for homeowners. The durability and longevity of these shingles mean that they require less maintenance and fewer repairs over time, which can save homeowners money in the long run. Additionally, the energy-saving features of these shingles can help reduce energy bills, further increasing their cost-effectiveness. In conclusion, CertainTeed's Belmont Algae Resistant Shingles are an excellent roofing solution for homeowners who are looking for a high-quality, reliable, and durable roofing option that is also resistant to unsightly algae growth. The UL classification ensures that these shingles meet strict industry standards, and the 10-year algae resistance warranty provides homeowners with confidence in their roofing investment. With their easy installation, energy-efficient performance, and cost-effectiveness, these shingles are a smart choice for any homeowner looking to protect their home and reduce their energy bills. See Less