International Compliance Association (ICA) Home Inspector Practice Exam

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Get ready for the ICA Home Inspector Test. Prepare with detailed questions and explanations. Boost your knowledge and confidence for your upcoming exam!

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What type of insulation is commonly used in attics for energy efficiency?

  1. Fiberglass batts

  2. Blown-in cellulose

  3. Spray foam insulation

  4. All of the above

The correct answer is: All of the above

Attics are critical areas for energy efficiency in a home, and several types of insulation can be effectively used to enhance energy savings. Each of the listed insulation types—fiberglass batts, blown-in cellulose, and spray foam insulation—serves unique purposes and has specific advantages that contribute to overall energy efficiency. Fiberglass batts are popular due to their ease of installation and cost-effectiveness. They provide good thermal resistance (R-value) and are non-combustible, making them a safe choice for attics. Their installation can be done quickly between the rafters or floor joists, creating an effective barrier against heat loss or gain. Blown-in cellulose insulation is made from recycled paper products and can be installed without the need for a specific shape, filling gaps and voids more effectively than other types. This characteristic makes it excellent for attics where it can settle uniformly in irregular spaces, minimizing thermal bridging and maximizing insulation performance. Spray foam insulation is known for its superior air sealing properties. It expands upon application, filling cracks and gaps that other insulation types may leave unsealed. This dramatically reduces air leakage, thereby enhancing the attic's thermal performance and contributing to energy efficiency. Since all these insulation types can be effectively utilized in att