2025 Price: Is Rockwool Cheaper than Fiberglass?
Discover the 2025 price comparison between Rockwool and fiberglass insulation with FUNAS. Dive into our in-depth analysis to find out: Is Rockwool cheaper than fiberglass? Explore cost-effectiveness, thermal efficiency, and long-term benefits to make an informed decision for your insulation needs. Stay ahead in energy efficiency and savings with our latest insights.

When comparing the prices of rockwool and fiberglass insulation, several factors come into play, including material costs, installation fees, and long-term energy savings. Here’s a breakdown of their price differences in 2025:
Material Cost
- Fiberglass Insulation: Generally, fiberglass is less expensive than Rockwool (also known as mineral wool) insulation. It is widely available and typically costs between $0.40 and $1.00 per square foot, depending on the type (batts, rolls, or loose-fill) and brand.
- Rockwool Insulation: Rockwool tends to be pricier, ranging from $1.00 to $2.00 per square foot. The higher cost is due to the manufacturing process and the materials involved, such as volcanic rock and basalt.
Performance and Efficiency:
While rockwool is more expensive, it is often considered a better performer in terms of fire resistance, soundproofing, and thermal insulation. It has superior durability and is water-resistant, which may justify the higher price in certain applications.
Installation Costs
- Fiberglass: fiberglass insulation is lighter and easier to handle, so installation costs tend to be lower.
- Rockwool: Rockwool is denser and heavier, which can result in slightly higher installation costs, as more labor may be needed to handle and install it.
Long-Term Savings
- Although Rockwool costs more initially, it offers better energy efficiency in terms of thermal and acoustic performance. This can lead to savings on heating and cooling bills over time, potentially offsetting the higher upfront costs.
- Fiberglass, being less dense, may not offer the same level of insulation as Rockwool in certain climates or applications, potentially leading to higher long-term energy costs.
Conclusion
Fiberglass is typically cheaper upfront, but rockwool might offer better value for specific needs due to its higher performance in terms of fire resistance, soundproofing, and durability. The choice between the two depends on your specific insulation needs, local climate, and budget.

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FAQ
What is the typical delivery time for custom orders?
Our daily production capacity is 800 cubic meters. Delivery time varies depending on the complexity of the insulation material wholesale order, but we can deliver large quantities of customized products within 4-6 weeks after the approval date, and small quantities can be delivered within 15 days.
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What types of rubber foam insulation products do you offer?
We offer a wide range of rubber foam insulation products, including custom shapes and sizes, thermal and acoustic insulation solutions, and options with specialized coatings such as flame retardancy and water resistance. Our products are suitable for applications in HVAC, automotive, construction, and more.
How does your technical support work?
Our technical support team is available to guide you through every stage of your project—from product selection and design to installation. We provide expert consultation to ensure that you get the best insulation solution for your needs and can assist with troubleshooting if needed.
Can I request custom dimensions or properties for my insulation needs?
Yes, we specialize in custom solutions. Whether you need specific dimensions, thicknesses, densities, or additional coatings, we can work with you to manufacture insulation products tailored to your exact requirements of good materials for heat insulation.
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