Insulating your attic is one of the best ways to save energy and stay comfortable all year round. It also helps reduce noise pollution from the outside, especially if your home has cathedral ceilings. But what type of insulation is best for your attic and climate? In this article, we explore the different options available and their pros and cons.

Spray foam insulation batt or roll insulation is a popular and budget-friendly choice. It is pre-cut into long strips and rolls that fit between the framing members (joists, rafters) of your attic. It has a low R-value but is effective at resisting heat flow and is easy to install. However, it breaks down over time and can be a favorite snack of raccoons. It is also not as effective at preventing air leaks and gaps compared to other insulation types.

Spray Foam vs. Fiberglass: Which Attic Insulation Is Best?

Blown-in cellulose insulation is another option. This insulation is made from recycled paper and other materials that have been treated with boric acid. It is blown into the attic space using special equipment, ensuring that all areas are covered and no gaps or air leaks remain. It is more expensive than fiberglass, but has a higher maximum R-value and has an excellent energy-efficient performance. It is also made of a non-toxic material and contains a high percentage of recycled content, making it a more eco-friendly option.

Spray foam attic insulation is another option that provides an airtight and highly effective barrier to prevent air leaks. This insulation is sprayed onto attic surfaces in two major varieties, open-cell and closed-cell. It can be installed in difficult-to-reach areas and is often used in conjunction with other insulation types to fill gaps, cracks, and holes.

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