Spray Foam Insulation
Installers of both open cell and closed cell spray foam insulation in residential and commercial applications.
Open Cell Spray Foam
Open cell spray foam is a lightweight, expanding insulation that provides excellent sound dampening and air sealing. It expands significantly upon application, filling every nook and cranny to create a complete air barrier in walls, attics, and crawl spaces.
- ✓ Excellent sound dampening properties
- ✓ Expands to fill gaps and voids completely
- ✓ Cost-effective insulation solution
- ✓ Ideal for interior walls and attic spaces
- ✓ Ultra lightweight application
Closed Cell Spray Foam
Closed cell spray foam is a dense, rigid insulation with the highest R-value per inch of any insulation material available. It adds structural strength to walls and acts as a vapor barrier, making it ideal for exterior applications and areas prone to moisture.
- ✓ Highest R-value per inch available
- ✓ Adds structural strength to walls
- ✓ Acts as a vapor barrier
- ✓ Ideal for exterior and below-grade applications
- ✓ Resists moisture and mold growth
Open Cell vs. Closed Cell
R-Value
Open cell provides approximately R-3.5 per inch, while closed cell delivers approximately R-6.5 per inch — the highest available.
Moisture Barrier
Open cell is vapor permeable, allowing walls to breathe. Closed cell acts as a complete vapor barrier, blocking moisture intrusion.
Sound Control
Open cell excels at sound dampening due to its softer structure. Closed cell provides some sound reduction but excels in thermal performance.
Got Foam?
Liquid Green Spray Foam Insulation is more than a service — it's a brand that stands for quality, efficiency, and green building. Our signature "got foam?" branding represents the standard of excellence we bring to every project, from residential attics to commercial warehouses.
Installers of both open cell and closed cell spray foam insulation in residential and commercial applications throughout the tri-state area.
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Attic Insulation
Spray foam in attic spaces eliminates thermal bypass and stops air leakage from the top of your home.
Wall Insulation
Both open and closed cell solutions for new construction and retrofit wall cavities.
Crawl Space
Seal and insulate crawl spaces to prevent moisture, mold, and energy loss.
Basement Insulation
Closed cell spray foam is ideal for below-grade basement walls prone to moisture.
Rim Joist
Seal rim joists and band boards to eliminate one of the biggest sources of air leakage.
Commercial Roofs
Spray foam roofing systems provide seamless insulation and waterproofing.
Frequently Asked Questions
Common questions about our spray foam products and applications.
What is the difference between open cell and closed cell spray foam?
Open cell spray foam is lightweight and expanding, making it ideal for interior walls and attics where sound dampening and air sealing are priorities. Closed cell spray foam is dense and rigid, with the highest R-value per inch, and acts as a vapor barrier while adding structural strength. We install both and will recommend the right type for your project.
Which type of spray foam is best for my attic?
Most attics are best insulated with open cell spray foam because it expands to fill cavities, provides excellent sound dampening, and seals air leaks at the largest source of energy loss in a home. Closed cell can also be used where higher R-value per inch is needed.
Can spray foam be added to existing walls?
Yes. For retrofit projects we use a process to inject spray foam into existing wall cavities, sealing gaps and adding R-value without removing drywall. We'll assess your walls during the estimate to confirm the right approach.
Is spray foam insulation waterproof?
Closed cell spray foam is closed-cell by structure, which means it resists water absorption and acts as a vapor barrier, making it the right choice for basements, crawl spaces, and below-grade applications. Open cell is water-resistant but not a vapor barrier.
How long does spray foam insulation last?
Properly installed spray foam insulation does not settle or sag over time and is considered a permanent insulation solution. It will maintain its R-value for the life of the building when installed by a qualified crew.
Does spray foam insulation off-gas or smell?
Liquid Green spray foam is fully cured within 24 hours of installation. Once cured, it is inert and does not off-gas. There may be a mild odor during the first day, similar to standard construction materials, which dissipates quickly with ventilation.