AirSeal Spray foam insulation technology

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AirSeal Spray foam insulation technology

HFO Insulation NYC

HFO Hydrofluoroolefin Insulation - What You Need to Know

What is HFO Hydrofluoroolefin Insulation?

HFO (Hydrofluoroolefin) insulation also known as fourth-generation spray foam insulation refers to spray foam insulation that uses HFOs as blowing agents. These blowing agents are transformed into the spray foam that is filled in every nook and cranny of buildings to achieve thermal insulation. HFO insulation can be applied in commercial or residential buildings to lower energy bills.

HFO is a chemical compound that is made from hydrogen, fluorine, and carbon, and it is being increasingly used as a blowing agent in place of HFCs (hydrofluorocarbons) in spray foam insulation in the U.S since 2021. This is because it is a climate-friendly blowing agent that does not emit harmful greenhouse gasses that deplete the ozone layer and contribute to global warming. HFO insulation is becoming a popular eco-friendly insulation option because of its low global warming potential (GWP) and zero ozone depletion potential (ODP).

Is HFO Insulation a High-Density Insulation?

HFO insulation is low-medium density closed cell spray foam insulation. The HFO blowing agent is enclosed in closed cells that give the insulation air sealing properties and a high R-value.

Areas Where You Can Apply HFO Insulation?

You can opt for HFO insulation in almost any residential and commercial property where there are open spaces. HFO insulation is successfully applied in empty cavities. It can be applied in attics, crawlspaces, basements, walls, ceilings, HVAC ducts, cold storage units, and between floors.

How HFO is Better for the Environment?

HFO has an 80% lower Global Warming Potential (GWP) as compared to HFC. This means that these gasses have less potential to heat up the earth and therefore, do not contribute to global warming. On the other hand, HFCs are harmful greenhouse gasses that deplete the ozone layer and have a higher environmental impact. If you are concerned about being green-friendly and reducing your carbon footprint, you should opt for HFO insulation. Not only is it more environmentally friendly, but it is also more energy efficient and provides better thermal insulation than HFC insulation due to higher R-value.

Why Choose (Air Seal IS) for HFO Insulation?

Air Seal IS is a licensed and insured insulation company that offers eco-friendly and certified HFO insulation. Whether you need residential or commercial insulation, Air Seal has experienced installers who guarantee quality HFO insulation to help you stay energy-efficient and reduce your carbon footprint as well. Air Seal IS believes in providing top-quality insulation services with environmentally safe products that meet customer expectations. If you’re looking for reliable and fast HFO insulation to thermally insulate your home or office and stay energy efficient, look no further than Air Seal IS for the best HFO foam insulation.


HFO insulation can be applied in empty spaces or cavities making it ideal for insulating new constructions. It can be installed in attics, basements, roofs, ceilings, walls, between floors, and in HVAC ducts.

HFO is mildly flammable or non-flammable depending on which HFO compound is being used. HFO insulation uses HFO-1234ze is non-flammable which is non-toxic and non-flammable.

According to the Environmental Protection Agency (EPA), HFOs are considered non-toxic and inert. They do not contribute to the depletion of the ozone layer or global warming.

R32 is a mildly flammable and non-toxic HFC with low global warming potential. Due to its high thermal stability, it is used as a refrigerant in HVAC units such as split air conditioners for the transfer of heat.

HFO foam uses hydro fluoro-olefin (HFO) as a blowing agent due to its low environmental impact as it does not emit ozone-depleting gasses. The HFO blowing agent is mainly used in closed cell foam insulation in which it is enclosed in millions of closed cells.

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We’re the Real Deal

To the untrained eye, the spray foam application process appears deceivingly simple. Just spray on the insulating foam. Let it cure. Cover with sheetrock. Job well done. Or is it? As a pioneering force in the field of spray foam insulation for well over two decades, AirSeal Insulation Systems knows that the analysis, planning and strategy surrounding a building envelope will directly affect the outcome of every job. The understanding of structural design, material application, modern technology and environmental factors all contribute to the effectiveness of an air barrier system. In other words? There’s a serious process involved, and it’s something we make a big deal about.


AirSeal Insulation Systems was founded over a decade ago by two contractors possessing extensive experience in related insulation specialties.
  • High-performance insulation systems
  • Spray foam insulation application
  • Home performance maximization
  • Fireproofing services
  • Cellulose application
  • Energy audits
AirSeal Insulation Systems has developed trusted relationships with leading firms and companies across the tri-state region.
  • Architectural firms
  • Engineering firms
  • Property developers
  • General contractors
  • Management companies
  • Energy designers
AirSeal Insulation Systems provides comprehensive insulation systems at new construction jobsites and existing renovation projects.
  • Office Buildings
  • Commercial Structures
  • Industrial Facilities
  • Institutional Facilities
  • Retrofits & Additions
  • Residential Homes
AirSeal Insulation Systems is proud to feature a large team of skilled employees who are experienced in the art of spray foam application and continuously train to advance their skills.
  • Chemical Usage Handling & Disposal
  • SPF Ingredient Application
  • Safety Control Measures
  • Personal Protective Equipment
  • Engineering Controls
AirSeal Insulation Systems is the New York region’s only certified contractor for the award-winning Icynene Insulation System® and a proud member of multiple professional associations.

AirSeal Insulation Systems proudly serves the tri-state region with distinction and has completed residential and commercial projects of all sizes in various locales.

  • The Five Boroughs of New York
  • Long Island
  • Westchester County
  • New Jersey / Philadelphia Metro area
  • Southern Connecticut


Take a look at some of the thermal insulation projects which we have completed successfully for our customers in New York & New Jersey.


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Learn from our customers what they have to say about our services first-hand.