Final answer:
Asphalt shingles with a multi-layer composition are known as architectural shingles, providing enhanced durability and an attractive, three-dimensional appearance compared to traditional 3-tab shingles.
Step-by-step explanation:
Asphalt shingles that are made up of several layers are called architectural shingles. Unlike the traditional 3-tab asphalt shingles, which have a single layer, architectural shingles are composed of multiple layers of asphalt fused together. This multi-layer construction gives them a three-dimensional appearance and often resembles natural materials like slate or wood shakes. Architectural shingles are also known for their durability and aesthetic appeal, making them a popular choice for residential roofing. They offer better wind resistance and a longer lifespan compared to 3-tab shingles.