Retrieve, Recycle, Reintegrate

Glass mineral wool is one of the best insulation materials in the world. It has a lifespan of more than 50 years, saves energy, and reduces emissions. Yet, when buildings are renovated or demolished, perfectly recyclable glass wool often ends up in landfills or incinerators. That is a waste of resources and a missed opportunity.

Resulation was created to change that. As a pioneering company by Knauf Insulation, Resulation is dedicated to retrieving mineral wool, recycling it into high-quality raw material, and reintegrating it into new insulation products. In short: giving glass mineral wool a second life. 

Why Resulation gives mineral wool a second life

Mineral wool is a material that fits perfectly into a circular economy. It can be recycled endlessly without losing quality. Resulation makes sure this potential doesn’t go to waste by transforming discarded insulation into a valuable resource.

With every batch that Resulation processes, the benefits are clear:

• Environmental impact: less waste ends up in landfill, fewer raw materials are extracted.
• Climate advantage: recycling reduces emissions and lowers the carbon footprint of production.
• Economic value: mineral wool waste becomes part of a sustainable value chain rather than a disposal cost.
  
   

Resulation’s three-step process

1. Retrieve
Resulation works with waste processors and deconstruction companies to collect mineral wool directly from construction and demolition sites. By sorting and compressing this material, it is saved from landfill and kept in the loop.

2. Recycle
At Resulation’s facility in Visé, Belgium —one of the largest glass wool manufacturing sites in Europe— the retrieved mineral wool undergoes a thorough quality check. It is then remelted into glass cullets, an infinitely reusable raw material.

3. Reintegrate
These recycled cullets are reintegrated into the production of new, high-performing insulation products by Knauf Insulation. The result: glass mineral wool that keeps buildings comfortable and energy efficient, while carrying the story of circularity.

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What Resulation means for construction

By making mineral wool circular, Resulation helps reshape the construction industry. Every ton recycled translates into:

• Fewer landfills: keeping valuable resources out of waste streams.
• Lower demand for virgin raw materials: protecting natural resources.
• Higher circularity: increasing the recycled content of building products.
• Greener projects: helping construction firms qualify for certifications such as LEED and BREEAM.

Through its work, Resulation proves that circularity is not just a vision but a concrete, measurable reality.

Partnering for impact

Resulation cannot do this alone. The loop only closes through collaboration:

1. Deconstruction companies who separate and prepare materials for recycling.
2. Waste processors who integrate mineral wool recycling into their services.
3. Construction firms who choose insulation products made with recycled content.

With every new partner, Resulation strengthens the circle and scales up its impact across Europe.

The road forward

The construction sector is under growing pressure to cut waste, reduce emissions, and embrace circular practices. Resulation is leading the way by showing how one material —mineral wool— can already move from a linear to a circular model.

The mission is clear: retrieve, recycle, reintegrate. Every project is an opportunity to save resources, reduce landfill, and create a more sustainable built environment.

Resulation is giving glass mineral wool a second life and building a future where nothing goes to waste.