Red Seal Carpenter Complete Practice Exam 2026

Fiberglass insulation is the most commonly associated type of insulation with wood frame construction due to its effective thermal resistance, ease of installation, and cost efficiency. It is lightweight and comes in batts, rolls, or loose-fill forms, making it suitable for fitting between the wooden studs in walls, ceilings, and floors.

Its non-combustible and moisture-resistant properties also contribute to its widespread use, as they align well with the requirements of wooden structures for fire safety and preventing mold growth. Additionally, fiberglass insulation has a high R-value per inch, meaning it provides substantial thermal resistance, which is essential for maintaining energy efficiency in residential buildings.

While other insulation types, such as foam board, mineral wool, and spray foam, are beneficial in certain applications, they are less commonly found in typical wood frame construction compared to fiberglass. The versatility and performance characteristics of fiberglass have made it a staple choice in the building industry for residential and light commercial projects.