- Home
- Companies
- American Rockwool Manufacturing, LLC
- Services
- American Rockwool - Insulation Services
American Rockwool - Insulation Services
Rockwool insulation, also known as stone wool or mineral wool, is an insulation material made by melting natural basalt rock and recycled slag at very high temperatures (around 2,732°F or 1,500°C) and then spinning the molten material into fine fibers. These fibers form a dense, fibrous mat that provides excellent thermal, acoustic, and fire-resistant properties. In essence, rockwool insulation is a robust, sustainable, and high-performance material that has become a cornerstone of modern energy-efficient and fire-safe construction.
- Non-Combustible: Rockwool is highly fire-resistant and does not burn. It is capable of withstanding temperatures exceeding 1,800°F (982°C), which makes it a safe choice for enhancing building fire protection
- High Thermal Performance: With an R-value of roughly R-3.8 to R-4.1 per inch, it helps maintain energy efficiency by reducing heat loss in both residential and commercial buildings.
- Sound Absorption: Its dense fiber structure effectively dampens sound, contributing to improved acoustic comfort.
- Moisture Resistance: Rockwool is hydrophobic, meaning it resists water absorption and prevents mold growth, which further preserves its insulating properties over time.
- Chemical-Free: Rockwool in its natural loose form does not require any chemicals to maintain its lifelong beneficial qualities.
- Durability and Sustainability: It is long-lasting (often over 50 years), and the material is 100% recyclable, aligning with sustainable building practices.
- Bio-solubility: Chemically inert, non-toxic and bio-soluble. These qualities further contribute to its safety profile, making it a safer option compared to other less soluble fibrous materials.
- Recyclable: With a sizeable variety of recycling options in construction and agriculture, rockwool is easily repurposed when it is no longer needed as insulation.
Rockwool balances performance, sustainability, and safety better than many options.
- Contains Recycled Content – Products include 60% recycled material.
- 100% Recyclable – Can be easily reused without losing its insulating properties, or repurposed in a variety of constructive uses.
- Short Carbon Payback Period – The energy saved in just 6 months to 2 years offsets the emissions from its production.
- Durability – Lasts decades longer than other forms of insulation, meaning less waste and fewer replacements.
- Fire Safety = Lower CO2 Impact – Containing fire spread reduces disaster-related carbon emissions.
- Superior Energy Efficiency – Reduces greenhouse gas emissions over a building’s lifetime.
Best For:
- Net-zero & passive homes
- LEED-certified & green building projects
- Sustainable renovations & retrofits
- Health-conscious homeowners
While no insulation is completely carbon-free, Rockwool provides long-term environmental benefits that outweigh its initial footprint, making it a major net positive. It’s a smart, sustainable investment for green buildings, fire-resistant construction, and long-lasting energy savings.
Rockwool = A Positive Force for the World
Rockwool’s Global Contributions:
- Slows climate change by reducing energy consumption.
- Saves lives through fire spread prevention and disaster resilience.
- Promotes healthier indoor environments by eliminating mold, toxins, and noise pollution.
- Boosts economies by creating jobs and supporting sustainable construction.
By using rockwool insulation, we move toward a safer, more energy-efficient, and sustainable future.