Foam board insulation Foam board insulation is one ... it offers thermal insulation as well as soundproofing, while also being flame retardant, minimizing fire risks. That being said, it should ...

It’s also resistant to moisture and easy to work with. There are a few kinds of foam board insulation DIYers should know ...

It’s typically treated with the mineral borate to improve fire and ... moisture-resistant; and expanded polystyrene (EPS), which is often the cheapest. Cons: Foam board insulation can be ...