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About ROCKWOOL

Introducing Ranson, West Virginia to our organization, its history, and the making of our stone wool insulation products.

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Who we are

ROCKWOOL, founded in Denmark in 1937, is the world’s leading manufacturer of environmentally friendly stone wool insulation.

Our insulation is used in a range of construction industry applications, including interior and exterior walls, floors, roofs, and attics, as well as industrial and original equipment manufacturers (OEM).

Natural and abundant Basalt stone is our core raw material and makes up 97 percent of our product.

We have been making stone wool products for over 80 years, and we deliver specialized solutions for a variety of sectors including buildings, marine, and offshore construction.

Stone wool and the products we make with it play an increasingly significant role in addressing two of the most far-reaching megatrends influencing virtually every aspect of modern society – urbanization and climate change.

People working together, doing their jobs, teamwork, plant operations at the production manufacturing factory facility in Milton, ON

How it's made: stone wool insulation

ROCKWOOL partnered with the Discovery Channel for an episode of 'how it's made' to show the production process from raw materials through to final packaging and shipment of batt and board products.

Production Process Fact Sheet

Seven strengths of stone

Stone wool is a versatile material and forms the basis of our business.

The ROCKWOOL Group has maintained its position in the market for decades because we’ve had one single-minded purpose: unlocking the strengths of stone to enrich modern living.

The world’s most abundant resource can be engineered to create uniquely useful and exciting solutions for the world. And it all starts with what ROCKWOOL is made of: stone wool. Click on any of the seven strength titles below to see how we put stone wool to the test in a new video series.

  1. Fire Resilience – can withstand temperatures up to 2100F, works to contain a fire and prevent its spread.
  2. Thermal Properties – helps save energy and reduces heating and cooling needs.
  3. Acoustic Capabilities – helps control the acoustic environment, increasing occupant comfort.
  4. Water Properties – can be engineered to absorb or repel water.  
  5. Durability – increased longevity of performance.
  6. Aesthetics – gives you the freedom to design.
  7. Circularity – as one of the most abundant resources on the planet, the stone can be infinitely recycled.

These are seven reasons why we believe the world’s most abundant resource can be engineered to create innovative solutions for modern construction and renovation.

Monthly Newsletter

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7 strengths of stone

Improving health, well-being and comfort

These seven strengths are inherent in the versatile and natural properties of stone wool. While our products usually go unnoticed due to their placement in construction, their silent, often-hidden existence can make people’s lives measurably more comfortable and enjoyable.

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ROCKWOOL by the numbers

The organization continues to grow its capabilities and service to the North American market, where the increasing customer demand reflects the reality that people are increasingly discovering the quality and advantages of our stone wool solutions. 

Number of employees globally:
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Number of employees in North America:
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Number of employees in MS:
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We're hiring for our new facility in Jefferson County, WV

Find out how you can be part of a growing team in North America with construction and manufacturing jobs available now.

The ROCKWOOL story

The ROCKWOOL Group started out as a family-owned and operated organization headquartered in Denmark, and the founding family retains a strong connection to the business today.

From our first stone wool production in 1937 to the extensive range of solutions we supply today, ROCKWOOL continues to evolve. 

The Kähler family continues to be involved in the business today after taking sole responsibility for ROCKWOOL in 1962. Continuity like this is unusual in the business world. Today, ROCKWOOL is traded on the Copenhagen stock exchange.

In 2014 we opened our first factory in the United States, based in Byhalia, a small town within Marshall County, Mississippi. 

The new factory increased our total capacity to produce stone wool in North America by 50 percent, employing approximately 150 people and has increased the ROCKWOOL Group’s investment in the North American market since 2014 to $350 million.

Today, ROCKWOOL products are in demand across the world. 

We operate 45 manufacturing facilities on three continents: Europe, North America, and Asia, including two factory locations in Denmark. ROCKWOOL also has a global network of sales offices, distributors and partners.

Our products have been installed in domestic, commercial and industrial buildings of all types, including family homes, local hospitals, and schools.

ROCKWOOL company history and timeline of events across North America and the world.

History of the ROCKWOOL organization from its founding to the projected 2020 opening of the factory in Ranson.

Our history of partnerships with fire safety associations

Our insulation works to contain fire and prevent it from spreading through the interior or on the exterior of a building. When seconds count this can provide the people inside the building more time to exit safely and firefighters more time to extinguish the fire.  At the same time, our insulation also does not contribute to the emissions of significant quantities of toxic smoke. 

For us, the dedication to fire safety goes well beyond our products as an active promoter and participant in the annual Fire Prevention Week activities. ROCKWOOL also hired a professional dedicated to advocating for fire safety, advancing regulations in building and fire codes, as well as improving testing standards.

In 2017, our expertise as leaders in fire-resilient and non-combustible building materials was frequently called upon by governments and building companies across North America who sought to better understand best practices in construction.

We collaborate with numerous fire safety associations and councils including the National Fire Protection Association (NFPA), Fire Safe North America (FSNA), and the National Association of State Fire Marshals (NASFM).

To learn more about ROCKWOOL’s dedication to fire safety, please download our one-page document or watch the video below.

Partnerships in fire safety

We work with fire associations and councils to ensure building codes, laws, regulations and practices promote strong methods of fire safety.

Rick Roos - senior manager codes and standards, fire portfolio north america

Fire safety is at the core of what we do as a company

Through our efforts both in product development and partnerships with fire-related organizations, we are helping to create safer homes and buildings for people in communities around the country, including right here in Jefferson County.

Download fact sheet
Even a well-maintained, complete, appropriate sprinkler system is not a magic wand. It requires the support of a well-considered integrated design for all the other elements of the building’s fire protection.

National Fire Protection Association (NFPA)

Other companies with “Rockwool” in their names

Some confusion understandably arises in relation to other companies with “Rockwool” or “Rock Wool” in their names, particularly a company called “Rockwool Industries.” 

It is important to note that our company, ROCKWOOL Group, has never owned or had any relation whatsoever to Rockwool Industries, which we understand has been involved in an EPA Superfund site in Texas and whose production in Missouri has been reported to be linked to increased incidences of cancer in that area.

There is also another, different company with “Rockwool” in its name that has been linked to asbestos concerns in Alabama.

The ROCKWOOL Group (our organization) has never had any production in Texas, Missouri or Alabama. Aside from a similarity in name, we do not currently have nor ever have had any relationship to these other companies.

Our recent strong achievements are also founded on these same attributes that were developed over forty years ago.

Tom Kähler

Former CEO of the ROCKWOOL Group

Find additional information about the ROCKWOOL project

01

Community and Economic Impact

We seek to make a positive impact in the City of Ranson and more broadly Jefferson County.

Through economic development that brings jobs for residents, opportunities for local businesses and support for local community organizations, we are focused on furthering the well-being of the community where we live and work.

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02

Jobs and Vendor Opportunities

150 jobs coming to Ranson, WV. Hiring starts in 2019.

ROCKWOOL is providing new manufacturing jobs in Jefferson County with an exceptional culture, wellness programs, investments in learning and development, and dedicated corporate social responsibility. We will also provide new vendor partner contract opportunities once the factory is in operation.

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03

Sustainability

At ROCKWOOL, sustainability is always top of mind.

Responsible business practices underpin everything we do. Sustainability is not only important for our products and brand, but also for our production process. We have ambitious targets for 2022 and 2030 to further reduce our environmental footprint in compliance with United Nations sustainability goals.

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04

Factory Operations and Production

Interested in how our stone wool insulation is made?

The ROCKWOOL manufacturing process includes an overview of insulation being made and what it’s made of, day-to-day operations of the plant and insight into the visibility, water usage and trucking and transportation impacts for Jefferson County.

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05

Environment

Protecting against factory emissions to minimize the impact on air and water quality.

The state-of-the-art technology we use meets and exceeds regulatory requirements. We've also made a commitment to ongoing third-party air monitoring that will allow you to track air quality in the area.

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06

Construction and Permitting

An overview of the air, construction and environmental permits required.

Access detailed information regarding site selection for the factory, development and environmental management of the project.

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Documents and resources

 

 

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