About: http://webisa.webdatacommons.org/79304928

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	My experience is, that you do not have to seal them to prevent damage due to salt or other deicing materials.
http://www.w3.org/ns/prov#wasQuotedFrom	lawnsite.com