rock wool

Spun stone fibers

Rock wool is a fibrous insulation material made by spinning molten rock or slag into fine threads, similar to cotton candy.

Used in construction for thermal and sound insulation, it resists fire and moisture better than fiberglass.

Also called mineral wool or stone wool: The contractor recommended rock wool for the attic.

material

basalt

Fine-grained volcanic stone

  • slagIndustrial metalworking byproduct
  • binderDevice securing loose pages
  • densityMass-to-volume ratio

batts · boards · blanket · manufacture · silicate · friable · dust · installation

thermal

insulation

Thermal transfer prevention

HVAC

fireproof

non-combustible

Unable to catch fire

high-temperature · firestop

acoustic

soundproofing

Preventing noise transmission

Categories
Opposites
insulation material type

rock woolspray foam

Aerosolized sealant that expands

rigid foam · polyurethane foam · foam board · polystyrene · fiberglass

material origin

rock woolsheep wool

Fiber from ovine coats

cork

Family

rock, wool, rocks, woolly, woolen, bedrock, woolens, shamrock, woolgathering

Familiarity
Top 500,000
Profile
Used worldwide · Timeless · Concrete · Rated G