Assertion: insulation's quality | /r/CapableOf | vary the r-value ✔ ✔
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Source sentences:
text: Available with polyester blend to reduce settling and compression Check the quality and fire resistance of the product ✔ ✔ ✔ ✔ Wool loose-fill Properties as for wool batts, but quality and density can vary and affect the R-value ✔ ✔