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Celebrate Earth Day with Natural Sound Absorbing Materials
April 22nd, 2024 is Earth Day, a time to reflect on everything our planet gives us and commit to protecting our environment now and into the future. Some people plant trees, others clean up litter, and many pledge to lead more eco-conscious lives in honor of the occasion.
This year, we’re spreading the word about natural sound absorbing materials to ring in Earth Day. Natural materials can be just as effective as processed products, but are far better for our planet.
Here, we’ll discuss the importance of acoustic absorption and explain why using a natural material is crucial in the fight against pollution and climate change. Then, we’ll share some of nature’s best sound absorbers to help you make eco-conscious choices on your next soundproofing project.
The Importance of Natural Sound Absorbing Materials
Along with being kind to the planet, we should all strive to be kind to our neighbors. Outfitting your business, school, or hospital with sound absorbing materials prevents noise transfer to outside spaces. It can also help stop sound from getting in if you work in a loud area. Many reach for synthetic materials for their soundproofing and sound absorbing needs as they’re readily available. But many natural materials are also effective sound absorbers and are far better for our environment, including:- Hemp
- Coconuts and coir (their outer husks)
- Date palm
- Jute (a kind of natural fiber derived from flowers)
- Kapok (a tropical tree native to Mexico)
- Sugarcane bagasse (a byproduct of processing sugar)
Celebrating Earth Day with Eco-Friendly Choices
Earth Day has been promoting sustainability and environmental protection for over 50 years. First held in 1970, the campaign has grown into a worldwide phenomenon that has:- Planted hundreds of millions of trees
- Funded eco-conscious education in almost 150 countries
- Handed out 7 billion grants to make schools greener
- Cleaned up countless tons of litter with the helping hands of over 36 million volunteers
Types of Natural Sound Absorbing Materials
There are many natural sound absorbing materials native to different areas around the globe. Over the course of history, humans likely used whatever was in their immediate vicinity to try and keep sound contained within their walls. Through this trial and error, we’ve come to identify the most effective natural material available, three of which include:- Acoustik Underlay (Recycled Tires) – At Acoustical Surfaces, we focus on innovative solutions like Acoustik Underlay, which is made from recycled tires. This material not only demonstrates superior performance in both Sound Transmission Class (STC) and Impact Insulation Class (IIC) but also addresses environmental concerns by reducing tire burning and landfill waste. Its high performance ratings make it an exceptional choice for soundproofing, surpassing many traditional materials.
- Wool – Noise reduction coefficient (NRC) is another effective way of measuring a material’s sound absorbing potential. Studies have shown wool to boast an NRC above 0.4, which puts it in the same range as many commercially available sound absorbing ceiling tiles and outpaces similar, competitive products such as carpeting.
- Hemp – Hemp is a versatile plant that can be woven into clothing, braided into rope, or even made into sound absorbing cement blocks. When the sound absorbing potential of hemp cement was tested against a one kHz noise, it was found to absorb around 80% of all sound attempting to sneak through its surface.
Recycled Sound Absorbing Materials
Using natural materials isn’t the only way to greenify your sound absorbing solutions this Earth Day. There are also a variety of recycled sound absorbing materials available that effectively contain noise while reusing items that might otherwise become waste. Two popular recycled sound absorbers are:- UltraTouch™ Recycled Denim Insulation – Who’d have imagined your old jeans could be upcycled into sound insulation? Ultratouch boasts an NRC of 1.15 across all frequencies, contains no harmful particulates to get into your air, and takes minimal energy to produce—meaning it’s a premier choice for anyone seeking insulation that’s both extremely effective and explicitly eco-friendly.
- Echo Eliminator Acoustical Panels – These versatile sound absorbing panels can be affixed to your wall or ceiling to keep noise boxed into a space. They’re specifically designed to dampen the reverberation of echoing noise and are made from recycled cotton—saving countless articles of clothing and other fabric items from ending up in landfills.