Vinyl siding comes in a variety of shapes, textures, and colors, creating a wide array of looks for different houses. It is manufactured primarily from durable polyvinyl chloride in several different profiles, including single, double, triple, vertical, and Dutch lap (Fig. 4).
There are also various types of vinyl soffit (the material used to enclose the underside of an eave or overhang). Soffit can be vented, solid, or a combination of the two (Fig. 5) and is designed to maximize air ow, preventing moisture accumulation and heat buildup between the siding and the house.