Is certainteed insulation any good?

Yes, CertainTeed insulation is considered very good and is one of the top three fiberglass insulation brands in the United States alongside Owens Corning and Johns Manville. CertainTeed is owned by Saint-Gobain, a large French building materials company with over 350 years of history, and manufactures insulation in the United States. Its residential fiberglass batts and rolls, sold under the Sustainable Insulation line, are well regarded because they use a formaldehyde-free, plant-based binder, are GREENGUARD Gold certified for low emissions, and contain recycled content. Contractors like CertainTeed because the batts are soft, easy to cut, and less dusty than older fiberglass, and they achieve their labeled R-value consistently when installed without compression. CertainTeed also makes excellent blown-in fiberglass called InsulSafe SP and high-performance blown-in fiberglass for attics. Its MemBrain smart vapor retarder is considered one of the best interior vapor barrier products for controlling moisture in walls. For commercial applications, CertainTeed offers high-quality mechanical board and duct wrap insulation. Compared to Owens Corning Pink, CertainTeed is often priced similarly or slightly cheaper and is widely available at Lowe's, Home Depot, and lumber yards. The main drawback is that CertainTeed does not have the same brand recognition or extensive contractor certification programs as Owens Corning, but performance-wise it meets all ASTM standards and building codes and is a reliable, high-quality choice for homes.