Understanding the difference between Earthwool vs. Fiberglass

Earthwool vs. Fiberglass

In the past, Fiberglass was the main contender for floor insulation in the attic. But now, in the current market, Earthwool insulation is a more eco-friendly and toxin free option to insulate your home.

  1. Comfort/ Indoor Air Quality Often we hear that a substantial amount of people find that fiberglass insulation has caused skin and respiratory irritation. Due to the way fiberglass is manufactured, it may also emit slight amounts of formaldehyde which possibly could impact indoor air quality. Earthwool insulation on the contrary is soft to touch, creates a cozy indoor environment and is more comfortable to handle. There is no formaldehyde or harmful substances in Earthwool that would affect the health of the residents of the building or the installers.

  2. Performance One of the primary differences between Earthwool and fiberglass is in the performance. Earthwool generally has a higher R-value then fiberglass. R-value indicates how well the insulations performance is against heat transfer. Earthwool insulation is more resistant to moisture absorption then fiberglass insulation. Fiberglass tends to absorb moisture which in return can reduce its effectiveness. Earthwool often has been considered to have more preferable soundproofing qualities then fiberglass.

  3. Manufacturing Process Earthwool is manufactured from recycled glass bottles by a process called ECOSE technology. This process involves using a sustainable bio-based binder to bond fiber strands together. Raw natural materials are used instead of harsh chemicals that are typically used to manufacture fiberglass.

  4. Environmental Impact Less energy is used to manufacture Earthwool because it consists of a high percentage of recycled materials. So therefore lower emissions are produced reducing your home’s carbon footprint. Whilst, the production of Fiberglass involves quite a significant energy consumption. A number of fiberglass products can also contain coatings that emit VOCs (volatile organic compounds) into the environment.

Exploring Earthwool Brands: Knaufwool and Vocalis

Knaufwool and Volcalis are the two leading brands in the world of Earthwool insulation that stands out because of their top notch performance and quality. Each to their own exclusive qualities. Ultimately the choice between these two brands depends on specific projects and environmental considerations.

  1. Volcalis Volcalis has recently emerged as a strong opponent in the insulation industry. The Earthwool provided by Volcalis is ideal for attics as it provides remarkable thermal insulation, fire resistance and is resistant to moisture and mold. Volcalis is manufactured with volcanic rock utilizing the natural properties of lava to generate an exceedingly efficient thermal barrier. Volcalis is a environmentally friendly option, as volcanic rock is a naturally occurring material which is abundant and sustainable.
  2. Knaufwool For decades, Knaufwool has been in the spotlight in the insulation industry. Providing premium performance, all Knaufwool products are manufactured with eco-friendly procedures and recycled materials including sand and recycled glass. Its offers fire resistance, optimal thermal and acoustic insulation. Knaufwool products have consistently being popular among eco-conscious customers due to its environmental impact.


In summary, Earthwool is the leading option for attic floor insulation. Contributing to a greener planet, enhanced home comfort and energy efficiency within the home, Earthwool stands out for its better qualities and added benefits. Weather your choice is Knaufwool or Volcalis, both will create a more sustainable and enjoyable environment for your home.