Rock Wool is made from natural and sustainable material.
Rock Wool  typically contains up to 75 percent recycled content.
Rock Wool retains heat well and traps air, which slows the transfer of heat.
Rock Wool is non-combustible and fire-resistant to about 1,400 degrees.
Rock Wool is High water-repellent.
Rock Wool is an excellent sound-deadening properties.
Rock Wool has higher insulating value than fiberglass.
Rock Wool has long-term performance and does not degrade over time.
Rock Wool allows moisture to escape (which deters mold and mildew).
Rock Wool has low dense and firmed friction-fit, which makes stapling unnecessary.