Modular homes are built off-site, usually in indoor, quality-controlled settings. Modular homes are completed in sections called modules, according to specific plans. These sections are then transported to the site, assembled by builders, and installed into the foundations. Because of technological advancements, modular homes have improved significantly over recent years and can sometimes be even better quality than traditional stick builders. These homes are quick to build. Since these modules are on an assembly line, they are under intense quality control. All supplies needed come from the manufacturer and not 100 different vendors from around the country, which can pose several issues.  Modular homes don't have to stop assembly when inclement weather pops up since they are mainly constructed indoors, so the weather isn't an issue. Also, lumber sitting outside during a stick build can sometimes not be adequately protected from the elements, and problems can occur years later.