Cold Storage & Freezers: Flat Roof Repair & Replacement
Cold storage roofs work backward from most buildings. Inside is colder than outside for most of the year, so moisture drives from the warm outside into the cold roof assembly, where it can condense and freeze into ice inside the insulation. A small leak or a gap in the vapor control can turn into a block of ice in the roof that keeps growing. The roof assembly, insulation and vapor control all have to be designed for that direction of moisture. We find where moisture is getting into the assembly, repair leaks, and replace wet or iced insulation with a system detailed for cold storage.
What matters on these roofs
Reversed vapor drive
Moisture moves from warm outside air toward the cold interior, so vapor control is placed differently than on a heated building.
Ice in the roof
Wet insulation in a freezer roof can freeze into ice that adds weight and spreads.
Continuous operations
Freezers can't be shut off; work is planned to keep them running.
Thick insulation
Cold storage roofs carry far more insulation, which raises edges, curbs and drain details.
The services these buildings use most
Cold Storage & Freezers roofing — FAQs
Moisture is getting into the roof assembly, from a leak or through gaps in the vapor control, and freezing. Finding the source comes before replacing the insulation.
Yes. Work is planned so the space stays at temperature.
Yes. See food and dairy plant roofing.