R-Value and Densities Chart - windsor-csd.org

1 R-Value and Densities Chart Material R-Value Per Inch R-Value Per Unit Inside Air Film Air Space between Studs Building Paper in. Fiberboard Sheathing Gypsum Wallboard or Drywall -- OSB/Particle Board - Low Density -- OSB/Particle Board - Medium Density -- Plywood or Wood Panels -- Hardwood -- Cement Mortar -- Sand & Gravel -- Stucco -- Glass Block -- Masonry Systems R-Value Per Inch R-V Per Unit Brick 90 lb/cu ft -- Brick 120 lb/cu ft -- Concrete pour -- Concrete Block Normal wt. 8in. empty core -- - Concrete Block Normal wt. 12in. empty core -- Concrete Block Medium wt. 8in. empty core -- - Concrete Block Light wt. 8in. empty core -- - Concrete Block Light wt.

2 12in. empty core -- - Roofing R-Value Per Inch R-V Per Unit Roofing Felt Asphalt Roll - 90 lb -- Asphalt Shingle -- Slate in. -- Wood -- Metal any -- Ceramic Tile in. -- Siding R-Value Per Inch R-V Per Unit Wood Shingles 16in. 7in. exp. -- Wood Drop 1in. x 8in. -- Wood Bevel in. x 10in. -- Aluminum/Steel Hollow -- Aluminum/Steel with 3/8in. backer -- Vinyl Siding -- < Composite Hardboard siding -- Insulation R-Value Per Inch R-V Per Unit Blankets/Batts - Fiberglass - -- 2010 Project Lead The Way, Inc. Civil Engineering and Architecture R-Value and Densities Chart Page 1. Blankets/Batts - Rock Wool - -- Loose Fill - Cellulose - -- Loose Fill - Fiberglass lb/cu ft -- Loose Fill - Fiberglass lb/cu ft -- Loose Fill - Rock Wool -- Loose Fill - vermiculite -- Rigid Board - Molded Polystyrene lb/cu ft -- Rigid Board - Molded Polystyrene lb/cu ft -- Rigid Board - Extruded Polystyrene lb/cu ft -- Rigid Board - Extruded Polystyrene - - -- Urethanes Rigid Board - Extruded Polystyrene - -- Polyisocyanurate Sprayed - Cellulose - -- Foam Filled - Urethane - -- Vapor barrier -- Common Rules of Thumb Type of Building Section R-Value Wood frame walls 3 plus R-Value of the insulation used Floors above unheated

3 Spaces 2 plus R-Value of the insulation used Ceilings 1-1/2 plus R-Value of the insulation Single-glazed windows Double-glazed windows Doors with glass Use R-Value of the glass for the entire door Doors without glass Typical Masonry Systems R-Value Per Inch R-Value Per Unit Brick - 90 lb/cu ft -- Brick - 120 lb/cu ft -- Concrete Block - Normal wt. 8in. empty -- - core Concrete Block - Normal wt. 12in. empty -- core Concrete Block - Medium wt. 8in. empty -- - core Concrete Block - Light weight 8in. empty -- - core Concrete Block - Light weight 12in. empty -- - core 2010 Project Lead The Way, Inc. Civil Engineering and Architecture R-Value and Densities Chart Page 2.

4 The following table was taken from the Home Energy Website: R-Values for Wall Systems Clear Whole Wall R- Wall R- (Rww/Rcw). No. System Description value value x 100%. (Rcw) (Rww). 12 two-core insulating units concrete 1. , EPS inserts 1 7/8 thick, grout fillings 97%. 24 12 two-core insulating units wood concrete 2. , EPS inserts 1 7/8 thick, grout fillings 92%. 24 12 cut-web insulating units concrete 3. , EPS inserts 2 thick, grout fillings 88%. 16 12 cut-web insulating units wood concrete 4. , EPS inserts 2 1/2" thick, grout fillings 86%. 16 12 multicore insulating units polystyrene 5. beads concrete , EPS inserts in all 77%. cores EPS block forms poured in place with 6.

5 103%. concrete, block walls 1 7/8 thick 2 x 4 wood stud wall 16 , R-11 batts, 1/2". 7. 91%. plywood exterior, 1/2" gypsum board interior 2 x 4 wood stud wall 24 , R-11 batts, 1/2 . 8. 91%. plywood exterior, 1/2" gypsum board interior 2 x 6 wood stud wall 24 , R-19 batts, 1/2". 9. 84%. plywood exterior, 1/2" gypsum board interior Larsen truss walls 2 x 4 wood stud wall 16 , R-11 batts + 8-in-thick Larsen trusses insulated 10. 95%. by 8 -thick batts, 1/2" plywood exterior, 1/2". gypsum board interior Stressed-skin panel wall, 6 -thick foam core +. 11. 1/2" oriented strand board (OSB) boards, 1/2" 88%. plywood exterior, 1/2" gypsum board interior 4 metal stud wall 24 , R-11 batts, 1/2".

6 Plywood exterior + 1-in EPS sheathing + 1/2". 12. 74%. wood siding, 1/2" gypsum board interior. NAHB. Energy Conservation House Details. 3 1/2" metal stud wall 16 , R-11 batts, 1/2". 13. plywood exterior + 1/2" wood siding, 1/2" 83%. gypsum board interior 14. 3 1/2" metal stud wall 16 , R-11 batts, 1/2" 81%. 2010 Project Lead The Way, Inc. Civil Engineering and Architecture R-Value and Densities Chart Page 3. plywood exterior + 1/2" EPS sheathing + 1/2". wood siding, 1/2" gypsum board interior. AISI. Manual details 3 1/2" metal stud wall 16 , R-11 batts, 1/2". plywood exterior + 1 EPS sheathing + 1/2". 15. 81%. wood siding, 1/2" gypsum board interior.

7 AISI. Manual details 3 1/2" metal stud wall 24 , R-11 batts, 1/2". 16. plywood exterior + 1/2" wood siding, 1/2" 75%. gypsum board interior. AISI Manual details 3 1/2" metal stud wall 24 , R-11 batts, 1/2". plywood exterior + 1/2" EPS sheathing + 1/2". 17. 76%. wood siding, 1/2" gypsum board interior. AISI. Manual details 3 1/2" metal stud wall 24 , R-11 batts, 1/2". plywood exterior + 1 EPS sheathing + 1/2". 18. 77%. wood siding, 1/2" gypsum board interior. AISI. Manual details 2010 Project Lead The Way, Inc. Civil Engineering and Architecture R-Value and Densities Chart Page 4. DENSITY OF FRESH DENSITY OF SEA DENSITY OF ICE DENSITY OF DRY AIR.

8 WATER WATER. Temperature Pounds Temperature Pounds Temperature Pounds Temperature Pounds (degrees F) per (degrees F) per (degrees F) per (degrees F) per cubic cubic cubic cubic foot foot foot foot 32 30 -50 -10 40 40 -40 0 50 50 -30 10 60 60 -20 20 70 70 -10 30 80 80 0 40 90 90 10 50 100 100 20 60 110 30 70 120 80 Approximate values in J / kg K of Specific Heat Capacity Air 1000 Lead 125. Aluminum 900 Mercury 140. Asbestos 840 Nylon 1700. Brass 400 Paraffin 2100. Brick 750 Platinum 135. Concrete 3300 Polythene 2200. Cork 2000 Polystyrene 1300. Glass 600 Rubber 1600. Gold 130 Silver 235. Ice 2100 Steel 450. Iron, cast 500 Water 4200.

9 2010 Project Lead The Way, Inc. Civil Engineering and Architecture R-Value and Densities Chart Page 5.