Assertion: insulation's r value | /r/HasProperty | its resistance
Facets:
value: to heat flow
type: CAUSE
value: through the material
type: MANNER
Source sentences:
text: R values and heat loss: The "R" value of a material is its resistance to heat flow through the material.
text: The R-value of a material is its resistance to heat flow and is an indication of its ability to insulate.
text: A product’s r-value is its resistance to heat flow.