Rockwool Insulation

Rockwool insulation is an excellent alternative to traditional fiberglass batts, made from semi rigid stone wool material, more dense than fiberglass batts and exhibiting superior sound proofing and fire resistant properties.

ROCKWOOL insulation is a rock-based mineral fiber insulation comprised of Basalt rock and Recycled Slag. Basalt is a volcanic rock (abundant in the earth), and slag is a by-product of the steel and copper industry. The minerals are melted and spun into fibers.

Because the main component is stone, Rockwool batts are not adversely affected by moisture in the way that fiberglass insulation can be. Poorly installed fiberglass insulation can become damp, discolor, compress significantly reducing the effective R-value. Rockwool Batts are water repellent and maintains it’s R-value after water exposure and doesn’t promote mold or fungal growth promoting a safer home environment.

Your choice of Rockwool batts may vary according to the particular room you are looking to insulate and the problem you are looking to solve, but typically Rockwool batts is chosen over fiberglass batts where superior fire rating and/or sound dampening is important i.e between floors, demising walls, around bathrooms, laundry and mechanical rooms.

Benefits of Rockwool

  • More dense than fiberglass batts
  • Superior fire resistant rating
  • Provides sound dampening between walls and floors
  • Water repellent and maintains it’s R-value after water exposure
  • Doesn’t promote mold or fungal growth


is a stone wool insulation product for use in interior wall partitions of residential wood and steel stud construction. It is especially useful when superior fire resistance and acoustical performance are required.

is a rigid mineral wool insulation sheathing board that is non-combustible, water-repellent, fire-resistant and sound absorbent. COMFORTBOARD™ 80 is an exterior non-structural insulation sheathing that provides a continuous layer of insulation around the residential building envelope.

is a stone wool insulation product for use in wood and steel framing in both new residential and commercial builds and renovations. This semi-rigid batt has a unique flexible edge designed to compress as the batt is inserted into walls, attics, ceilings and floor frames.

is a rigid, high-density, non-combustible, stone wool insulation board designed for use as an exterior continuous insulation in commercial applications.

is a semi-rigid insulation board designed for exterior cavity wall and rainscreen applications. These products offer superior long-term thermal efficiency, fire resistance, moisture control, acoustic performance and are compatible with numerous framing systems and cladding attachment systems.

is a lightweight, semi-rigid batt insulation specifically designed for steel stud interior wall and floor applications.