Eco-Friendly Tips to Insulate Your Home

It is hot out there! We know that insulation helps us run that air conditioner a bit less, but what you might not know is that there are lots of different insulation options, and certain types are much more environmentally sound than others. Insulators like spray foam contain harsh chemicals and even emit greenhouse gases!

Here are some insulation options that get it right.

Blue Jeans

In 2008, Levi’s recycled over 200,000 pairs of discarded jeans into insulation for the California Academy of Sciences in Golden Gate Park, and you can find recycled denim insulation for the home, too. Not only is denim insulation easier on the environment, you’re keeping all of that discarded material out of the landfill!

For folks looking to score denim insulation for the home, Bonded Logic makes home insulation using post-consumer cotton and denim.


Sand is a renewable resource, and EcoBatt has sorted out a way to turn that into home insulation. They combine sand with post-consumer recycled glass to create natural insulation that’s Greenguard certified.

They even have a handy locator tool to help folks find it by state.

Straw Bale Construction

Straw bale is a totally natural insulator that’s easy to source locally in many areas. It’s a great addition to a natural building project, because it’s easy to work with. A great insulator, straw is a renewable resource and contains none of the harsh chemicals you’d associate with conventional insulators.

A great way to learn more about natural materials like straw bale is to hunt down sustainable building courses in your area. The more you know how to do yourself, the more money you can save on construction costs.

Up Next: A few more healthy options for insulating your home.


Companies like Celbar offer insulation made from recycled paper. Like denim, this does double duty: providing eco-friendly insulation while reducing landfill waste. Celbar even has spray insulation, a great alternative to conventional spray foam for insulating crawl spaces and attics.

Insulating from the Outside In

Greensulate has a unique take on eco-insulation. Rather than focusing on what’s inside your walls, they have options for creating green walls on your home. Talk about multiple benefits! Green walls help save energy, of course, but the greenery itself improves air quality and helps fight climate change.


While too much soy might not be the dietary ideal, it’s a great alternative to conventional, toxic spray insulation. Perfect for attics and crawl spaces, soy-based foam helps improve air quality. If you want to find soy insulation for your home, you might check out companies like BioBased.

Did I miss any alternative insulation options here? Let me know in the comments!

[Image Credit: Creative Commons photo by moosicorn]

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John E.
Past Member about a year ago

Your articles are very well written and unique. energy saving companies

Anastasia J.
Annie J.2 years ago

Good post. also liked the comment mentioning using rolls of wool insulation. If it's humanely harvested that'd be an amazing insulation alternative!

Ebba S.
Ebba S.3 years ago

We have the denim in my house!

Diane G.
Diane G.4 years ago

Nice article! I am going to look up some of these options in more detail!

Linda L.
Linda L.5 years ago

These ideas get me thinking.

Lupe G.
Lupe G.5 years ago

Thanks to this article, we began to open our options. Now we are just waiting for them to become more common & cost-reduced.

Marcia Oyler
Marcia Oyler5 years ago

You straw and straw/clay infill. Both cheap and great.

Aditi Acharya
.5 years ago

thank you.

Philippa P.
Philippa P.5 years ago

Great tips!

charmaine c.
Charmaine C.5 years ago

Very interesting. Thanks to all the extra information from other posters.