Permafrost Prevention Installation

Permafrost Prevention

When the bottom floor of a building requires temperatures to be below freezing, (e.g., refrigerated warehouses, freezer storage facilities, ice-skating rinks), the soil underneath that building is vulnerable to freezing as well. When soil freezes, it can wreak havoc on the foundation of a building, causing stress, heaving and possible permanent structural damage.

Uponor’s Permafrost Prevention System keeps the soil underneath these buildings above freezing without affecting the colder temperatures above. The system circulates a cool water-and-glycol solution through Uponor’s Wirsbo hePEX™ plus tubing embedded in the soil or fill under a building’s foundation. This keeps the soil stable and the building’s foundation strong without compromising the necessary freezing temperatures above.

Protects Foundations from Structural Damage

When Uponor’s Permafrost Prevention System is installed underneath a freezer building, the foundation is protected from freeze damage and the building’s occupants, in turn, are protected by a strong, sound structure. Additionally, permafrost prevention can eliminate costly foundation repairs. Protecting a building with a permafrost prevention system ensures the structure will never encounter cracks, stress fractures or any type of structural compromise from freezing.

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Key Benefits

• Protects soil from frost, permafrost and freezing
• Prevents heaving, cracking from freezing soil
• Keeps foundations solid and strong
• Maintains a continuous soil temperature
• Offers longer life to a building’s subfloor
• Provides a stronger corrosion resistance for rebar
• Combats alkali-silica reactivity (concrete breakdown)

Typical Applications

• Refrigerated warehouses
• Freezer storage facilities
• Ice-skating rinks
• Coolers
• Chill coolers
• Holding freezers
• Blast freezers

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