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Rockwool A/S (or AS),[6] also known as the ROCKWOOL Group,[3] is a Danish multinational manufacturer of mineral wool products headquartered in Hedehusene, Greater Copenhagen, Denmark. The company's R&D unit, employing 100 people as of , is co-located with the headquarters in Copenhagen.[7]
Rockwool was the world's largest maker of insulation materials in ,[6] but had fallen to the second largest by .[7] As of , 90% of the company's revenue came from the sale of insulation products, while 80% came from sales in Europe.[6]
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Rockwool was founded as Korsør Stenforretning by constructor Henrik Johan Henriksen and brickyard-owner Valdemar Kähler in as a gravel mining company.[7] In , the company won the contract on improving the dykes at Saltbæk Vig and later purchased the area.[8]
In , it purchased a chipping plant at Hedehusene. In ,[note 1] a production of mineral wool (stone wool) was established at the site based on an American license acquired by Finn Henriksen during a visit to the States.[9] By , the focus of the company had fully turned toward the manufacture of insulation.[7]
In , the company was divided into H+H and I/S Kähler & Co. Kähler & Co. was led by Valdemar Kähler's grand son Claus Kähler. He was succeeded on the post by his son Tom Kähler in . In , Tom became chairman of the board while Eelco van Heel took over the position as chief executive officer.
The company began trading as "Rockwool International A/S" on the Copenhagen Stock Exchange in .[3] Before it became a public company, it was a family-owned business,[6] held by the Kähler family.
The company's first plant in the United States opened in in Marshall County, Mississippi.[10] In , the company announced a North American expansion through establishment of a plant in Ranson, West Virginia through its subsidiary Roxul.[11][12]
In Rockwool was named an "International Sponsors of War" by Ukraine for selling products to the Russian Ministry of Defence for use on warships.[13]
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Rockfon is a brand of acoustic ceiling and wall solutions based on rockwool.
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In , Rockwool acquired a minority stake related to technology licensing in the privately held Swiss company Flumroc AG.[14] In November Rockwool completed acquisition of all outstanding shares of Flumroc; company sales have been largely limited to Switzerland.[14] Due to the broad recognition of the brand in Switzerland, Rockwool kept using the Flumroc brand.[14]
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With the acquisition of a stone wool factory in Ontario, Canada, Roxul Inc. was established as the Canadian subsidiary. When business started in the United States, Roxul USA Inc. was established as the US subsidiary. On 1 January , the North American insulation business rebranded to ROCKWOOL North America.
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From to , Rockwool Group's president and CEO was Tom Kähler. From to , Eelco van Heel held those positions.[15]
As of , Rockwool Group's president and CEO was Jens Birgersson.
In February , the company announced the appointment of Jes Munk Hansen as its new chief executive from 1 September .[16]
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Rockwool International is represented in 38 countries (), operating 28 factories in the following countries:[note 2]
Goto Geyu Energy Saving to know more.
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In , there were a number of actions by the World Intellectual Property Organisation in regard to internet domain names which have resulted in domain transfer to Rockwool, among these being "china-ocean-rockwool.com",[18] "rockwoolfactory.com",[19] and "rockwoolvietnam.com".[20] In , Rockwool International filed suit against Rock Wool Manufacturing Company hoping to quash potential consumer confusion in the face of the defendant having filed a trademark application for "Rock Wool"; the suit was dismissed by the court after Rock Wool's abandonment of their trademark application.[21]
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In , six members of the Kähler family established the Rockwool Foundation with an endowment of 25% of each of their own stock holdings in Rockwool International.[22] The Foundation has been referred to as a think tank by some authors.[23] The Rockwool Foundation Research Unit was established as a fully independent unit with a focus on social science research in by the Foundation, led since by Torbin Tranæs.[24] The Research Unit has been described as self-financed and non-partisan.[25] The Research Unit has published on topics such as the extent of the financial black market in Denmark.[26] In other published cases, it has been unclear whether the Research Unit or the Foundation have been the actor, as in the case of examining the British health care system with an eye toward the financial cost of emulating the Kaiser Permanente system,[23] and an analysis of the impact on the Danish economy of wages lost through prisoner incarceration.[27]
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Citation Hanna states that production started in .
Citation Hanna notes 23 factories in 35 countries as of .
Roxul facility opened ; Rockfon facility opened in .
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Rockwool insulation, known for its efficiency and eco-friendliness, has become a popular choice in both residential and commercial construction. But what exactly is Rockwool made of, and what makes it so effective? This blog will explore the composition, production process, and benefits of Rockwool insulation, providing a comprehensive understanding of this versatile material.
Manufacturers craft Rockwool insulation from rock minerals, primarily basalt, and recycled slag. They melt down these natural materials and spin them into fibres, creating a wool-like texture. This mineral wool is not only effective in insulation but also environmentally friendly due to its recycled content.
The journey of Rockwool insulation begins with heating rock minerals until they become molten. Workers spin this molten rock into fibres, much like how cotton candy is made. They then collect these fibres and pour them into moulds to form insulation slabs. After moulding, they cool and cut the slabs to the desired sizes including:
The 100mm of each range is typically the most popular.
Several countries around the world, including Denmark, Sweden, and the United States, produce Rockwool insulation. In the U.S., a significant manufacturing facility is located in South Carolina. These plants maintain environmentally friendly production practices.
Rockwool designs its manufacturing process to be as eco-friendly as possible. It avoids harmful emissions and utilises recyclable natural resources.
Notably, the Rockwool plant in Horsens, Denmark, is CO2-neutral. The plant&#;s green energy installations offset the CO2 emitted during production, highlighting the brand&#;s commitment to sustainability.
Rockwool insulation excels in its superior thermal properties. It has a low thermal conductivity, meaning it effectively slows down the transfer of heat. Additionally, it does not absorb moisture, which helps maintain its insulating properties over time.
Furthermore, it is resistant to fire, pests, and mould, making it a safe and durable choice for various building applications. Its excellent acoustic performance also makes it ideal for soundproofing, providing a quieter indoor environment.
Rockwool insulation stands out due to its combination of effectiveness, safety, and ease of installation. It does not require special training for installation, making it accessible for a wide range of projects. Its sustainable production process and recyclable nature further enhance its appeal to environmentally conscious consumers.
Rockwool insulation, with its robust performance and eco-friendly attributes, is an excellent choice for anyone looking to improve their building&#;s energy efficiency and safety.
Whether you are a contractor, builder, or homeowner, this dependable brand offers a reliable and sustainable solution for your insulation needs. Explore the various options available at Materials Market and discover how Rockwool can enhance your building&#;s comfort and efficiency.
Contact us to discuss your requirements of Rockwool Strips. Our experienced sales team can help you identify the options that best suit your needs.