About: http://webisa.webdatacommons.org/384753044

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	These systems are assembled in the uppermost part of building structures to provide protection and insulation from external elements such as rain, sunlight, and heat.
http://www.w3.org/ns/prov#wasQuotedFrom	astm.org