Rockwool Insulation Soundproofing Blanket 75mm is a dense stone wool blanket designed to absorb sound and improve thermal insulation in residential, commercial and industrial spaces. Measuring 1m × 3m, each roll covers 3m2 and is suitable for use within drywall partitions, ceiling cavities and other enclosed building systems. Its fibrous structure helps reduce noise transmission when installed as part of a properly sealed wall or ceiling assembly, while its non-combustible stone wool provides added fire resistance. The flexible blanket can be cut to fit around framing for a snug installation.