About: http://webisa.webdatacommons.org/85803468

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 first membranes laid in the 1960???s are still protecting flat roofs some 50 years later with over One billion square metres installed worldwide on Commercial and industrial buildings including Offices, Schools, Hotels???.
http://www.w3.org/ns/prov#wasQuotedFrom	nextgeneration-roofing.co.uk