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Foam Insulation
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Foam Insulation
Foam insulation products, such as spray foam and rigid board, provide a high R-value per inch by creating a dense thermal barrier that significantly restricts heat transfer. In the extreme Alaskan cold, these materials act as both a superior insulator and a powerful air sealant, filling gaps that traditional fiberglass batts often miss.
Foam Insulation offers:
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Superior Thermal Resistance: It offers a much higher R-value in thinner profiles, which is crucial for meeting strict energy codes in regions like the Interior without requiring massive wall thicknesses.
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Integrated Air Sealing: It expands to fill cracks and crevices, stopping the "stack effect" where warm air escapes through the attic and pulls cold air in through the floor.
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Moisture and Vapor Control: Closed-cell foam is virtually impermeable to water, preventing interior condensation from turning into damaging ice or mold inside the wall cavity.
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Structural Reinforcement: High-density spray foam can actually increase the racking strength of a building, providing extra stability against high wind loads and seismic activity.
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Ice Dam Prevention: By effectively sealing the attic floor and preventing heat leakage, foam keeps the roof deck cold, which stops the melt-and-freeze cycle that creates dangerous ice dams.
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Pest Deterrence: Unlike fiberglass or cellulose, foam does not provide a soft nesting material for rodents or insects looking to escape the winter cold.
