Union Roofers: The Roofers Union has members who work with a wide range of materials to put up new roofs and take down old ones. Most commercial and industrial buildings have hot built-up or single-ply roofing systems installed by roofers. Contractors who specialise in waterproofing basements and other structures use moisture-resistant materials to prevent water from getting into the building. The job can be done in any kind of weather. Mechanical and electrical equipment used in the installation of roofing and waterproofing goods is also operated by the group's members.
