Assertion: insulation's r value | /r/HasProperty | different
Facets:
value: very
type: DEGREE
value: in older or historic buildings
type: LOCATION
value: slightly
type: DEGREE
Source sentences:
text: Rigid foam insulation is typically made from three different types of plastic with slightly different R-values.
text: Especially in older or historic buildings the R-values defined before construction might be very different than the actual values.