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Sustainable and Eco-Friendly Spray Foam Insulation

Sustainable and eco-friendly spray foam insulation uses plant-based materials (like soy), water-blown agents, and recycled content (PET bottles) to reduce petroleum reliance, offering superior air sealing, high R-value for energy savings, and lower VOCs, contributing to greener buildings, though full eco-friendliness also depends on supply chain and installation practices.


Spray Polyurethane Foam (SPF) is made up of harmful chemicals that can cause severe respiratory and skin problems when a person is exposed to it. Prolonged exposure can even be toxic and can cause death.

Because of the dangers (severe respiratory and skin problems) that the use of spray foams impose, installers need to wear respirators and protective clothing. But, there are alternatives to spray foam insulation and eco-friendly forms of spray foam insulation that are non-toxic, renewable, and recyclable.

Two Most Eco-Friendly Spray Foam Insulation Products

Many installers will recommend spray foam insulation as a much better option for maximizing energy efficiency and enhancing indoor comfort. Spray foam insulation is sometimes called Spray Polyurethane Foam Insulation, installed or applied in three ways:

  • New home construction
  • General home renovations
  • Specific retrofit projects

Now, you can choose to have contractors install a green eco-friendly spray foam insulation. Walltite ECO and Icynene are the two best options to install eco-friendly spray foam insulation.

Walltite ECO Spray Foam Insulation

Walltite ECO is a highly recommended eco-friendly spray foam insulation that is ideal for under concrete floors, inside wood or steel framing, and foundation walls. An advantage of this eco-friendly spray foam is it can be applied in a single application.

In Canada, Walltite ECO exceeds the specifications of the National Building Code and it is the only insulation system that satisfies the polyurethane durability test. It is also the first closed-cell spray foam to be certified by EcoLogo, North America’s most acknowledged certification.

EcoLogo assures consumers that Walltite ECO is a trusted eco-friendly spray foam insulation product.

Another distinctive characteristic of Walltite ECO that makes it eco-friendly is it meets the strict standard of the GREENGUARD Certification Program. This certification assures these qualities of Walltite ECO making it safe for school applications:

  • Indoor comfort
  • Indoor safety
  • Eco-efficiency

The best benefits that you will get from using Walltite as the most eco-friendly spray foam insulation include:

  1. Man spraying insulationAdds structural strength
  2. Repels water
  3. Creates an effective vapor barrier preventing condensation, mold, and mildew
  4. Do not sag, shrink, or deteriorate
  5. Reduces noise transmission
  6. Manufacturers using recycled and renewable natural materials
  7. R6 per inch, reducing energy use by 40%

According to BASF UK, “spray-applied closed-cell polyurethane foam is the only insulation material that adds structural integrity throughout the wall system. Testing shows spray-applied polyurethane foam insulation between wood- and steel-stud wall panels, increases rack and shear strength, two to three times compared with standard timber frame components with glass fiber insulation.”

Contractors choose Walltite ECO because this spray foam product is durable and dependable, adding structural strength, stopping air and moisture leakage, and reducing noise transmission. Most of all, it has been engineered using renewable and recycled materials, is Greenguard certified, and contains zero ozone-depleting blowing agents.

Icynene Spray Foam Insulation

If you are searching for completely non-toxic spray foam insulation, Icynene spray foam insulation is a safe method for insulating your home. Mass Foam Systems noted that Icynene is “actually one of the safest, healthiest, and most eco-friendly insulation methods. Unlike other polyurethane foams, Icynene is completely non-toxic and has an array of benefits to help reduce your carbon footprint.”

Here’s how Icynene spray foam insulation a green spray foam insulation with environmental benefits:

  • Keeps your home air-tight to reduce heat loss
  • Made of 99% pure water-blown air
  • Does not contain any formaldehyde chemicals, toxic chemicals, or harmful gases
  • Produced from entirely recyclable materials
  • Trialled and approved to be safe for both human and animal health (it is safe to enter the home again just 2 hours after installation)
  • Independently tested as per ISO 16000-9 to determine that it is not made with any pollutants or hazardous substances
  • Recommended by AMICA, the European Association for the Environmental and Chronic Toxic Injury, as completely safe to install in properties

Best Alternatives to Spray Foam Insulation

If you are still doubtful that any type of spray foam insulation product can bring harm to your health and safety, there are alternatives to spray foam that are eco-friendly materials for insulation. These eco-friendly insulation materials are:

1. Sheep’s wool

Sheep wool insulation is 100% all-natural, renewable, recyclable, and biodegradable. This insulation material comes from sheared excess wool from sheep. The wool then undergoes minimal processing before it is ready to be installed for insulation. Why is sheep’s wool a great insulation material?

  • Raw WoolAbsorbs any excess moisture up to 35% of its net weight, making it an excellent material to keep mold and mildew at bay.
  • Acts as an air filter because of the amino acids that make up the material. The amino acids irreversibly bind with several chemical nasties that could be floating in your indoor air like cancer-causing formaldehyde or nitrogen oxides, and sulfur dioxide.
  • Maintains an R-value up to 4.3/inch for 50 years.
  • Extremely resistant to fire and is self-extinguishing
  • Resistant to insects and rodents because of its boric acid content, a naturally occurring earth mineral considered non-toxic.

2. Cork

Another eco-friendly alternative to spray foam insulation is cork, a natural tree product. It is harvested and manufactured in a completely sustainable way, even considered to be carbon-negative. Its insulation qualities include:

  • R-value of 4 per inch
  • Very fire resistant
  • Allows water to pass through without causing damage
  • Guaranteed to last 50-60 years

3. Hemp

Hemp wool is a great eco-friendly home insulation material because it is fire resistant and not prone at all to microbial growth. It absorbs excess condensation without becoming moldy. When used in insulation, it will not slump due to gravity over time in walls. Your home can enjoy insulating benefits with hemp wool for its entire life duration of 50+years.

What is the Most Eco-Friendly Insulation?

Green building materials are becoming the trend. There are many types of eco-friendly insulation materials you can choose from. The most eco-friendly insulation material for your home will depend on the structural composition of your home and the environment in which you live.

Other eco-friendly insulation materials include:

Is Spray Foam Insulation Environmentally Friendly?

There are alternative spray foam insulation products that are considered to be environmentally friendly. The traditional spray foam insulation, however, is not considered to be eco-friendly, so if you are looking to reduce your carbon footprint while saving money and energy, choose the more sustainable types of insulation.

More From Ecostar Foam

What Is the Cheapest Way to Insulate a Floor?
What Types of Materials Make Good Insulators?
The Importance of Floor Insulation: Types, Benefits, and Cost-efficient Solutions


Star Spray Foam insulation in New Orleans community is proud to provide affordable, efficient insulation services. We have built a reputation in the NOLA area for efficient, high-quality insulation at an affordable cost.

We use quality materials to maximize the amount of heat retained inside your home – and we install them for you hassle-free. Contact us today!

Frequently Asked Questions

What is non toxic spray foam?

Non toxic spray foam refers to insulation products that are formulated with low levels of harmful chemicals and emissions after curing. Some modern spray foams use water-blown technology, renewable materials, and low-VOC formulations to improve indoor air quality and reduce environmental impact.

Is non toxic spray foam insulation available?

Yes. Several manufacturers offer non toxic spray foam insulation products designed to minimize exposure to harmful chemicals. Products such as Icynene use water-blown technology and are independently tested for low emissions, making them a popular choice for homeowners seeking healthier insulation options.

What is non toxic expanding foam?

Non toxic expanding foam is a type of foam sealant or insulation that uses safer formulations with reduced volatile organic compounds (VOCs) and fewer hazardous ingredients. While no construction material is entirely chemical-free, many modern expanding foams are designed to be safer for occupants once properly cured.

Is eco friendly spray foam insulation available?

Yes. Eco friendly spray foam insulation products are available and often incorporate renewable, recycled, or sustainable materials. Some products use plant-based ingredients, recycled plastic content, or water-blown technology to reduce their environmental footprint while still providing excellent insulation performance.

What makes spray foam eco friendly?

Eco friendly spray foam typically contains one or more sustainable features, including renewable raw materials, recycled content, low global warming potential blowing agents, and low VOC emissions. These features help reduce reliance on petroleum-based ingredients and improve overall environmental performance.

Which eco friendly spray foam products are most commonly recommended?

Walltite ECO and Icynene are among the most widely recognized eco friendly spray foam insulation products. Walltite ECO incorporates recycled and renewable materials and is certified by environmental programs, while Icynene is known for its water-blown technology and low-emission formulation.

Is eco friendly spray foam as effective as traditional spray foam?

Yes. Eco friendly spray foam can provide the same benefits as traditional spray foam insulation, including superior air sealing, moisture control, energy efficiency, and long-term durability. Some eco-friendly options also offer high R-values and contribute to lower heating and cooling costs.

Does eco friendly spray foam improve indoor air quality?

Many eco friendly spray foam products are designed to improve indoor air quality by reducing drafts, limiting moisture intrusion, and minimizing VOC emissions. Products with certifications such as GREENGUARD are tested to meet strict indoor air quality standards.

Are there environmentally friendly alternatives to spray foam insulation?

Yes. Homeowners looking for sustainable insulation options may consider sheep’s wool, cork, hemp, cellulose, denim, and other natural or recycled materials. These products offer varying levels of thermal performance while reducing environmental impact.

What is the most eco-friendly insulation material?

The most eco-friendly insulation material depends on the home’s design, climate, and performance requirements. Natural materials such as sheep’s wool, cork, hemp, and cellulose are widely regarded as sustainable choices because they are renewable, recyclable, biodegradable, or made from recycled content.

Is traditional spray foam insulation environmentally friendly?

Traditional spray polyurethane foam is generally less environmentally friendly than newer alternatives because it relies heavily on petroleum-based chemicals. However, modern eco friendly spray foam products have significantly improved sustainability by using renewable materials, recycled content, and low-impact blowing agents.

How can I choose the best non toxic spray foam insulation for my home?

When selecting non toxic spray foam insulation, look for products with low-VOC certifications, water-blown technology, recycled or renewable content, and third-party environmental certifications. Consulting an experienced insulation contractor can help determine the best option for your home’s specific needs.