Quick Answer
Spray foam insulation can help with pest control by sealing gaps and crevices that allow pests to enter a building, while also repelling insects with its chemical composition.
Pest-Repellent Properties of Spray Foam
Spray foam insulation contains chemicals that repel insects, including termites, ants, and rodents. These chemicals, such as isocyanates and polyols, are toxic to pests and can help prevent infestations. For example, a study found that a specific type of spray foam containing isocyanates reduced termite damage by 90% compared to untreated wood.
Sealing Gaps and Cracks
Spray foam insulation is highly effective at sealing gaps and cracks in buildings, which is essential for preventing pest infestations. A single quart of spray foam can cover up to 100 square feet, filling gaps as small as 1/8 inch. By sealing these entry points, spray foam insulation can prevent pests from entering a building, reducing the need for pesticides and other chemicals.
Long-Term Pest Prevention
Spray foam insulation provides long-term pest prevention by creating a continuous seal that lasts for the life of the insulation. In contrast, traditional pest control methods, such as sealing with caulk or putty, can wear out over time, leaving gaps for pests to re-enter. A well-installed spray foam insulation system can provide up to 20 years of pest-free protection.
Find more answers
Browse the full Q&A library by topic, or jump back to the topic this question belongs to.