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1. www.designnavigator.solutions › CRCConstruction R-value Calculator - Design Navigator

   www.designnavigator.solutions › CRC

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   This webpage calculates the R-value of walls, roofs and suspended floors for most insulation material R-values. It uses the "isothermal planes" method, the same method as used in NZS4214:2006.

2. www.rockwool.com › north-america › resources-and-toolsR-Value Calculator | ROCKWOOL

   www.rockwool.com › north-america › resources-and-tools

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   Measure the heat resistance of different products and applications with ROCKWOOL's R-Value Calculator. Find out how to achieve LEED certificates and optimized energy performance with our thermal insulation products.

3. www.omnicalculator.com › construction › insulationInsulation Calculator

   www.omnicalculator.com › construction › insulation

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   18 sty 2024 · The R-value for insulation measures how much resistance an insulation of a given thickness has against the heat flow. The unit of R-value is °F·ft²·hr/BTU/in or K⋅m²/W. Generally, a higher R-value indicates greater resistance and better insulation of the material. Unfortunately, insulation materials with higher R-values are more ...

4. www.ekotrope.com › r-value-calculatorEkotrope | Unparalleled Market Insights and Tech Solutions

   www.ekotrope.com › r-value-calculator

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   Compute the R value (or U Factor) of your roof assembly with Ekotrope’s free online tool. Learn more about R-value, U-factor, and how to use Ekotrope RATER for home energy modeling.

5. learnmetrics.com › calculating-r-value-how-to-calculate-r-value-formula-unitsCalculating R-Value: How To Calculate R-Value? (Formula + Units)

   learnmetrics.com › calculating-r-value-how-to-calculate-r-value-formula-units

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   When we have gathered all the materials that make our attic and roof, we can calculate the R-value of the attic like this: R-Value (Attic) = R-0.45 (Material 1) + R-10.6 (Material 2) + R-11.2 (Material 3) + R-1.1 (Material 4) + R-2.9 (Material 5) + R-9.8 (Material 6) = R-36.05

6. roofonline.com › roof-r-valueRoof R-Value • What It Is, How to Find It, Requirements

   roofonline.com › roof-r-value

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   12 wrz 2023 · Learn what roof R-value is, how to find it, and why it matters for energy codes and insulation. See a table of typical R-values for roof coverings and building insulation, and check with the manufacturer for specific products.

7. www.greenbuildingadvisor.com › article › free-online-calculators-for-r-values-andFree Online Calculators for R-Values and Costs

   www.greenbuildingadvisor.com › article › free-online-calculators-for-r-values-and

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   18 lut 2014 · Compare the thermal performance and cost of different roof, floor, and wall assemblies with Ekotrope's free online calculator. Adjust the type of insulation, stud depth, sheathing, and cladding and see the changes in R-value and cost per square foot.