Gnomad Home Insulation Data
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TypeR-Value per InchCost per sfCost / R @ 1 sfNominal R-ValueCost / Unit
Unit Length (in)
Unit Width (in)
Unit Thickness (in)
Square FeetSourceNotes
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Fiberglass Batts3.71$0.33$0.0313$13.13384153.540.00https://www.homedepot.com/p/Owens-Corning-R-13-Kraft-Faced-Insulation-Roll-15-in-x-32-ft-RF10/202585857
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Mineral Wool / Rock Wool4.29$9.58$0.6415$47.704715.253.54.98https://www.homedepot.com/p/Roxul-ComfortBatt-3-1-2-in-x-15-1-4-in-x-47-in-R-15-Fire-Resistant-Stone-Wool-Insulation-12-Roll-RXCB351525/202090820
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Polyisocyanurate (Polyiso)6.00$0.74$0.126$23.569648132.00https://www.homedepot.com/p/Thermasheath-Rmax-Thermasheath-3-1-in-x-4-ft-x-8-ft-R-6-Polyisocyanurate-Rigid-Foam-Insulation-Board-787264/100549260
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Extruded Polystyrene (XPS)5.00$0.62$0.125$19.989648132.00https://www.homedepot.com/p/Owens-Corning-FOAMULAR-150-1-in-x-4-ft-x-8-ft-R-5-Scored-Square-Edge-Insulating-Sheathing-20WE/207179253
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Expanded Polystyrene (EPS)3.85$0.39$0.103.85$12.589648132.00https://www.homedepot.com/p/R-Tech-1-in-x-4-ft-x-8-ft-R-3-85-Insulating-Sheathing-320821/202532854
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Reflectix4.40$0.43$0.391.1$43.25300480.25100.00https://www.homedepot.com/p/Reflectix-48-in-x-25-ft-Double-Reflective-Insulation-BP48025/100052556
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Denim3.72$2.10$0.316.7$11.2048161.85.33https://www.homedepot.com/p/UltraTouch-16-in-x-48-in-Denim-Insulation-Multi-Purpose-Roll-60301-16482/202709974
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Closed Cell Spray Foam7.00$1.88$0.277$380N/AN/A1202.00https://sprayfoamkit.com/products/spray-foam-insulation/foam-green-202-closed-cell-spray-foam-insulation-kit/
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Havelock Sheep Wool3.71$1.33$0.1013$12083715.53.590.09https://www.ghsproducts.com/havelock-wool-batt-insulation-r-13/
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Good Shepherd Sheep Wool3.71$2.37$0.1813$45.8719214.53.519.33https://goodshepherdwool.com/pricing/
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Black Mountain Sheep Wool3.71$1.92$0.1513$37.1019214.53.519.33https://eco-buildingproducts.com/product/16-sheeproll-natural-wool-insulation-roll/?gclid=CjwKCAiAhfzSBRBTEiwAN-ysWCYM__9XxfPWGJbJ5QC7ahtBsrF6B353wO7c6UHwoUPVhyUf7Hom3BoCeTUQAvD_BwE&v=7516fd43adaa
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3M Thinsulate3.15$2.73$0.535.2$136.62120601.6550.00https://www.amazon.com/Thinsulate-Acoustic-Thermal-Insulation-SM600L/dp/B074XLJ4Q1/ref=as_at/?imprToken=m7U4xACeaVxo25YVytHwBg&slotNum=0&_encoding=UTF8&pd_rd_i=B074XLJ4Q1&pd_rd_r=Q3V8YE2G4T2FAVDF435J&pd_rd_w=dNfUw&pd_rd_wg=ddyh8&psc=1&refRID=Q3V8YE2G4T2FAVDF435J&linkCode=sl1&tag=grumpyoldgit-20&linkId=52b238a4dad237a2921e4e2c271d1779
http://multimedia.3m.com/mws/media/784669O/3m-thinsulate-acoustic-insulation.pdf
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Lizard Skin#VALUE!$3.74#VALUE!N/A$187N/AN/A0.0450.00https://lizardskin.myshopify.com/products/ceramic-insulation-2-gallon?_ga=2.23032830.453228170.1516571397-1621569839.1516218865&_trackatronId=tk8uwj2jtNo reliable data on the effectiveness of this product.
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Ceramic Paint Additives#VALUE!#VALUE!#VALUE!N/A$12.49N/AN/AN/A#VALUE!https://www.amazon.com/ThermaCels-Insulating-Additive-Gallon-Package/dp/B01AC5KRJ6/ref=cm_cr_arp_d_product_top?ie=UTF8Also need to purchase paint. No data as above.
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