In Australia this kind of woodworker is called a roof covering woodworker and the term contractor describes somebody who mounts the roofing cladding (tiles, tin, etc.). 
In the United States and Canada, they’re frequently referred professional roofing contractors to as Roofing Contractors.The most typical roofing product in the USA is asphalt shingles.In recently, 3-tab shingles were used; nowadays, “architectural” or “dimensional” shingles are becoming quite prominent.
Relying on the region, various other typically applied roof covering products installed by roofing professionals consist of concrete ceramic tiles, clay tiles, all-natural or artificial slate, single-ply (Primarily EPDM or Rubber, PVC, or TPO), rubber shingles (made from recycled tires), glass, metal panels or roof shingles, wood trembles or shingles, liquid-applied, hot asphalt/rubber, foam, thatch, solar tiles, as well as specialty roofings like Duro-Last. %LINK3% “Living roof” systems, or roof landscapes, have come to be significantly usual over the last few years in both household and commercial applications.
In the United States, law of the roof trade is left approximately individual states. In California, as an example, the California Contractors State License Board licenses as well as monitors roofing contractors.Unlicensed having of projects worth over a set threshold may result best roofing contractors in rigid penalties or perhaps time in prison.
The United Kingdom has no regulations in location that requires a roofing contractor to have a permit to trade, although some do come from acknowledged profession companies