(605) 840-1531 
sanespor@gwtc.net 
Choosing the right type of spray foam insulation can significantly impact your property’s energy efficiency, comfort, and structural integrity. Closed-cell and open-cell spray foam are two popular options, each with distinct features and benefits. Let’s break down the differences to help you decide which one suits your needs best.
Closed-Cell Spray Foam Insulation
Closed-cell insulation is dense and rigid, offering exceptional durability and resistance to moisture. It creates an airtight seal and strengthens the structure of your walls and ceilings.
- Key Benefits:
- High R-value per inch (great thermal resistance).
- Superior moisture and air barrier.
- Adds structural strength to your building.
- Ideal for areas prone to humidity or extreme weather.
- Best For:
Garages, basements, roofs, and commercial properties where moisture protection and durability are priorities.
Open-Cell Spray Foam Insulation
Open-cell insulation is lighter and more flexible, making it a great option for filling irregular spaces. It expands more than closed-cell foam, providing excellent soundproofing properties.
- Key Benefits:
- Affordable and lightweight.
- Expands to fill hard-to-reach areas.
- Great soundproofing capabilities.
- Breathable material, allowing some moisture passage.
- Best For:
Interior walls, attics, and spaces where soundproofing and affordability are important.
How to Choose the Right Insulation
The choice depends on your specific needs:
- For maximum insulation performance, durability, and moisture resistance, closed-cell insulation is the way to go.
- For affordability, soundproofing, and versatility, open-cell insulation is ideal.
Let Us Help You Decide
At Nespor Contracting Inc., we specialize in both closed-cell and open-cell insulation. Serving Winner, Sioux Falls, and Pierre, SD, we can guide you in choosing the best option for your property. Call us at 605-840-1531 today for a free consultation and personalized advice