Cold Storage Type | Interior Temperature Range °F (°C) | Minimum R-Value for Roof Insulation |
---|---|---|
Coolers | 40 to 50 (4.4 to 10) | 30 to 35 |
Chill Coolers | 25 to 35 (-3.8 to 1.6) | 35 to 40 |
Holding Freezers | -10 to -20 (-23.3 to -28.9) | 45 to 50 |
Blast Freezers | -40 to -50 (-40 to -45.5) | 50 to 60 |
*2022 edition of the American Society of Heating, Refrigerating and Air-Conditioning Engineers' ASHRAE Handbook — Refrigeration |