Mineral wool (also known as rock wool) is currently one of the more commonly used materials in insulation materials. It is made of natural rock and steel slag, which is a recycled byproduct of steel production.
If you plan to insulate your living space, whether it is a new house or an old house that needs upgrading, you should learn as much as possible about mineral wool, because it is currently one of the more popular insulation materials.
Rock wool insulation has several advantages, such as excellent performance in thermal insulation and sound insulation. It is also very durable, fire-resistant, mold-resistant, etc.
The only disadvantage of rock wool boards is that they are not biodegradable and are slightly more expensive than similar insulation materials such as fiberglass and cellulose.
This article will delve into the origin and raw material composition of this insulation material.
What is mineral wool insulation?
Mineral wool insulation materials are usually made of volcanic rocks such as basalt, dolomite or diabase. It also contains some recycled materials, such as steel slag and iron ore waste.
Therefore, mineral wool is almost entirely made of recyclable, natural and renewable raw materials.
The iron ore and steel industries produce thousands of tons of slag every year. Usually, this waste is sent to landfills, and the mineral wool manufacturing process converts this waste into effective and high-performance insulation materials. It makes good use of industrial waste that would otherwise not be used for any production. Insulation
Volcanic rock is also another component of mineral wool. As you may know, the quantity of rocks and stones is almost an inexhaustible natural resource. Igneous or volcanic rocks account for more than 15% of the entire land surface of the earth.
Therefore, all materials used to manufacture rock wool insulation materials are environmentally friendly and sustainable. This insulation material is also very versatile. It can be used to insulate every part of a house, including roofs, walls and floors. Mineral wool is sometimes also used to insulate attics, although this application is less than others.
Mineral wool usually comes in two forms, loose fill and batt insulation. The type of mineral wool insulation suitable for you depends on the specific application, your budget, the type of house you have, and other factors.
The thermal performance of mineral wool is impressive. For example, the average insulation R value of rock wool batts made for traditional 24 insulation walls is 15 or higher. On the other hand, batts made for 26 insulation stud walls have an insulation R value of 23, significantly higher than the insulation R values of comparable insulation materials such as fiberglass.
Loose fill rock wool follows closely, providing an insulation R value of 3.0 to 3.3 per inch of thickness. This enhanced thermal performance is mainly due to the unique manufacturing process of mineral wool insulation materials.
English