What are some common air sealing materials used in building performance upgrades?

The answer is focused on commonly used materials specifically suited for air sealing in building performance upgrades. Caulk, spray foam, and weatherstripping are all effective solutions for sealing air leaks in various areas of a building.

Caulk is a flexible sealant used to fill gaps and cracks in different materials, providing a tight seal that prevents air flow. It is particularly useful around windows, doors, and at the edges of baseboards, ensuring that conditioned air does not escape and unconditioned air does not infiltrate.

Spray foam insulation is another versatile material that expands to fill voids and gaps, creating a strong air barrier. It is often used in areas that are hard to reach or irregularly shaped, like attics, crawl spaces, and around ducts and pipes. This material not only helps in air sealing but also adds insulation value.

Weatherstripping is designed to be applied to movable components, such as doors and windows, allowing them to seal tightly when closed. This prevents drafts and contributes to overall energy efficiency in a home by minimizing heat loss during colder months.

Concrete and brick, glass and tile, wood panels and stucco are materials more commonly associated with structural components and finishes rather than effective air sealing. While they may provide some insulation