![]() This capstock can include about 10% titanium dioxide, depending on the color, which is a pigment and provides resistance to breakdown from UV light. Two layers of PVC are laid down in a continuous extrusion process the top layer is weatherable and durable material, which comprises up to 25% of the siding thickness. ![]() Today, vinyl siding is manufactured by co-extrusion. In the following decade, vinyl siding grew steadily in popularity in large part due to its durability, versatility, and ease of maintenance. Beginning in the 1970s, the industry changed its formulation to improve the product's production speed, impact resistance, and range of colors. This original process made it difficult to produce and install a consistent, quality product. At that time, blending of colors was done manually. The process was originally done through mono-extrusion, a process of forming the profile from a single material into the desired shape and size. It was first produced by an independently owned manufacturing plant called Crane Plastics in Columbus, Ohio. Vinyl siding was introduced to the exterior market in the late 1950s as a replacement for aluminum siding. It is the most commonly installed exterior cladding for residential construction in the United States and Canada. In the UK and New Zealand a similar material is known as uPVC weatherboarding.Īpproximately 80 percent of its weight is PVC resin, with the remaining 20 percent being ingredients that impart color, opacity, gloss, impact resistance, flexibility, and durability. It is an engineered product, manufactured primarily from polyvinyl chloride (PVC) resin. Vinyl siding is plastic exterior siding for houses and small apartment buildings, used for decoration and weatherproofing, imitating wood clapboard, batten board and batten or shakes, and used instead of other materials such as aluminum or fiber cement siding. Plastic exterior siding for buildings Vinyl siding on a building
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