All About ROCKWOOL Insulation (Special Podcast)

Rockwool stone wool insulation package in foreground with construction worker installing insulation batt on home's exterior in background
Stone wool’s sound-absorbing and hearth-resistant qualities make for effective insulation. (ROCKWOOL)

In this specific Today’s Homeowner Podcast, we’re chatting all about stone wool insulation with Dan Edelman, Rockwool’s National Company Growth Manager.

Stone wool insulation is fireplace-resistant and non-combustible, offering your family members more time to securely escape a dwelling fireplace. (ROCKWOOL)

What is ROCKWOOL insulation?

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

ROCKWOOL merchandise incorporate among 16% or 40% pre-consumer recycled substance dependent on the ROCKWOOL manufacturing facility place.

The amount of recycled written content is optimized to give the great thermal, acoustic, and hearth security properties from ROCKWOOL merchandise, when however maximizing the recycled written content.

ROCKWOOL’s Historical past

Rockwool factory in Byhalia, Mississippi
Rockwool’s production facility in Byhalia, Overlook., was the company’s to start with creation procedure in the United States. (3 Echoes Material Studio)

Dan: ROCKWOOL company commenced in 1937 in Copenhagen, Denmark, and the enterprise expanded to the North American market in 1988.

So, our product is comparatively new to North The usa, but traditionally it is been around for pretty some time now. We just opened up a new sophisticated factory in Ranson, West Virginia. 

All of our factories are zero waste-to-landfill, and for the reason that stone wool insulation is hydrophobic, we use recycled rainwater to lower it. Even our factories that are wind- and water-powered are self-building.

You can locate out extra about how our sustainable factories operate on ROCKWOOL’s Sustainability webpage.

Positive aspects of Stone Wool Insulation

Not only is Rockwool insulation extremely fire-resistant, it also operates to have hearth and avert its distribute. (Rockwool)

Dan: ROCKWOOL stone wool insulation is in a natural way fireplace-resistant for the reason that it is produced from rock. We never have to add any hearth retardants or substances that enhance flammability, so it is never heading to have a flame and has zero smoke development.

A different advantage is mould resistance. ROCKWOOL stone wool insulation really repels water. There will often be humidity in the air, especially when you’re speaking about crawlspaces and attics.

Getting capable to repel that humidity away and eternally currently being a mould and mildew-resistant product, it is likely to support with the durability of your wall assembly as perfectly.

Attic Insulation

An interior view of a house attic under construction with stone wool insulation
An attic is 1 of the most price tag-powerful places to insert insulation. (ROCKWOOL)

Dan: ROCKWOOL insulation batts occur in 16-inch on middle or 24-inch on middle by 47 or 48 inches prolonged, which is the ideal measurement for insulating attics. They match completely between the studs, so you get that whole cavity insulation.

Phase 1 when installing attic insulation is to examine the existing insulation. Make positive there is no humidity, mould mildew, rodent droppings or rodents residing there. Rodents don’t mainly care for ROCKWOOL insulation. 

After inspection, basically lay the batts down perpendicular to the joists, primarily if the existing insulation is only to the joists.

If the existing insulation is down below the joists, you will want to fill up to the joist line so you get extra continuous insulation.

ROCKWOOL insulation ordinarily has a 4.2 to 4.3 per inch R-worth, so you truly really do not need to have very as substantially to strike the increased R-value. Having said that, we have merchandise with a larger R-benefit primarily for attics.

Rockwool Stone Wool Insulation Safe n Sound
Rockwool Safe’n’Sound is made precisely for seem dampening to assistance prevent sound from touring. (3 Echoes Material Studio)

What About Sound Insulation?

Dan: The best matter for sound insulation is density and mass, the two of which ROCKWOOL has. 

The other component to audio insulation is friction suit, how limited it matches in that wall cavity. If you have just one area that you just can’t insulate adequately, all the seem is going by that one particular portion and you are lessening that sound insulation.

For much more details on ROCKWOOL stone wool insulation, go to and examine out our All About Insulation webpage.

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