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R-Value Table: Wine Cellar Construction Guide
Summary
When building a wine cellar, use the following table to assist in calculating the R-Value for various construction materials that you may use in your wine cellar. If you need assistance understanding the charts, don't hesitate to contact us.
R-Value Table (1)
Material
|
R-Value per Inch
|
R-Value per Thickness
|
|
Insulation Materials |
Fiberglass Batt |
3.14 - 4.30 |
|
Fiberglass Blown (attic) |
2.20 - 4.30 |
|
Fiberglass Blown (wall) |
3.70 - 4.30 |
|
Rock Wool Batt |
3.14 - 4.00 |
|
Rock Wool Blown (attic) |
|
|
Rock Wool Blown (wall) |
|
|
Cellulose Blown (attic) |
|
|
Cellulose Blown (wall) |
|
|
Vermiculite |
|
|
Rigid Fiberglass |
|
|
Expanded Polystyrene (Beadboard) |
|
|
Extruded Polystyrene |
|
|
Polyurethane (foamed in place) |
|
|
Polyurethane (foil-faced) |
|
|
|
Construction Materials |
Concrete Block 4" |
|
0.80 |
Concrete Block 8" |
|
|
Concrete Block 12" |
|
1.28 |
Poured Concrete |
|
|
Brick 4" common |
|
0.80 |
Brick 4" face |
|
0.44 |
Soft Wood Lumber |
|
|
- 2" Nominal (1 1/2") |
|
1.88 |
- 2x4 Nominal (3 1/2") |
|
4.38 |
- 2x6 Nominal (5 1/2") |
|
6.88 |
Cedar Logs & Lumber |
|
|
|
Sheathing Materials |
1/4" Plywood |
|
0.31 |
3/8" Plywood |
|
0.47 |
1/2" Plywood |
|
0.63 |
5/8" Plywood |
|
0.77 |
3/4" Plywood |
|
0.94 |
Fiberboard |
|
|
Fiberglass |
|
|
Extruded Polystyrene |
|
|
Foil-Faced Polyisocyanurate |
|
|
|
Interior Finish Materials |
Gypsum Board (drywall 1/2") |
|
0.45 |
Gypsum Board (drywall 5/8") |
|
0.56 |
Paneling (3/8") |
|
0.47 |
|
Glass |
Single Pane |
|
0.91 |
Single Pane w/ Storm |
|
2.00 |
Double Pane |
|
|
- 3/16" air space |
|
1.61 |
- 1/4" air space |
|
1.69 |
- 1/2" air space |
|
2.04 |
- 3/4" air space |
|
2.38 |
- 1/2" w/ Low-E |
|
3.13 |
Triple Pane |
|
|
- 1/4" air space |
|
2.56 |
- 1/2" air space |
|
3.23 |
|
Doors |
Wood Hollow Core Flush (1 3/4") |
|
2.17 |
Solid Core Flush (1 3/4") |
|
3.03 |
Metal (2" w/ urethane) |
|
15.00 |
(1) Source: ColoradoEnergy.org
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