best answer > What is the R value of 4 inch insulation 2024?- QuesHub | Better Than Quora
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  • Mia Thompson——Studied at Harvard University, Lives in Boston. Currently pursuing a career in medicine as a resident physician.

    Fiberglass Batt Insulation CharacteristicsThickness (inches)R-ValueCost (cents/sq. ft.)3 1/21112-163 5/81315-203 1/2 (high density)1534-406 to 6 1/41927-345 more rowsread more >>
    +119962023-05-29 14:45:06

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