Won & Done Sweepstakes

Enter for a chance to win an entire home's worth of ROCKWOOL stone wool insulation for your next build.


Innovation in the
building envelope

Our thermal and acoustic stone wool insulation materials release the natural power of stone to provide fire resistance, water repellency and durability that sets the standard for high-performance building insulation everywhere.


Learn why ROCKWOOL Comfortboard® 80 rigid board insulation, ROCKWOOL Comfortbatt® thermal batt insulation and ROCKWOOL Safe'n'Sound® acoustic insulation are essential parts of any high-performance home.

High-performance building starts now

Join the R‑Class

The ROCKWOOL R‑Class Builder Program is 100% free. When you join, we’ll ship you our exclusive welcome kit packed with samples, installation gear and R‑Class swag! Sign up today.


At ROCKWOOL, we’re all about building your success. From product and installation basics to technical questions about code compliance and building science, our team of professionals offers premium support to the R‑Class.


You’ll find our ROCKWOOL sales team on the road at jobsites just like yours, training and connecting directly with R‑Class builders. Reach out to the ROCKWOOL sales pro in your region to set up an in-person or virtual meeting to learn more about your build and where to find our products.

Technical Services

Whether you’re new to ROCKWOOL stone wool and just have some basic questions or need a deeper dive into details that drive the performance of your builds, our technical service reps are here to become a new valued member of your team. Reach our experts by phone or email five days a week.

Building Science

Whether you need help with code compliance evaluations, dew point calculations or energy modeling, this team of building science experts is next-level. ROCKWOOL Building Science works with our more advanced builders to perfect the thermal efficiency and resiliency of each building design, reaching far beyond insulation.