About: http://webisa.webdatacommons.org/178474191

Property	Value
http://www.w3.org/1999/02/22-rdf-syntax-ns#type	http://www.w3.org/ns/prov#Entity
http://www.w3.org/ns/prov#value	The base is coated with one or more layers of a bituminous material such as asphalt to provide water and weather resistance to the roofing product.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com