Which of the following is a common insulation material used in residential homes?

Insulation is a critical component in residential construction for maintaining energy efficiency and comfort. Each of the materials listed is widely recognized and utilized in homes, making them important for insulation purposes.

Cellulose is made from recycled paper products and treated for fire resistance. It provides excellent thermal performance and is often used in retrofitting existing homes due to its ability to fill gaps and voids effectively.

Spray foam insulation is known for its high R-value per inch and its ability to expand upon application. This characteristic allows it to create an effective air seal, reducing energy loss through cracks and gaps, making it a popular choice in both new construction and renovations.

Fiberglass is perhaps the most commonly recognized insulation material. It is made from recycled glass and is typically available in batts or loose-fill form. It has been a staple in building insulation due to its efficacy and cost-effectiveness.

Considering that all three materials are commonly used in residential insulation applications, the choice indicating that all of the materials are insulation options is correct. Each material has its unique properties and benefits, contributing to effective insulation strategies in buildings.