Foam insulation is typically two to three times more expensive than traditional insulation, such as fiberglass or cellulose.
While this is more expensive up front, the air seal reduces the long-term cost of spray foam with lower monthly energy bills.
When building a new home, it is important to not only look at the initial costs, but also the return on investment as well.
There is also typically a small upcharge on the HVAC system as well when you use spray foam, due to fresh air intakes, humidity monitors, etc.
In a new build home, an HVAC contractor will determine the size of the system your home needs, which ensures your new house won’t be too tight, and will have good air quality and relative humidity.