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 audio-absorbing and fireplace-resistant houses make for successful insulation. (ROCKWOOL)

In this special Today’s House owner Podcast, we’re conversing all about stone wool insulation with Dan Edelman, Rockwool’s National Business enterprise Development Supervisor.

Stone wool insulation is fireplace-resistant and non-flamable, giving your loved ones additional time to properly escape a property hearth. (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 (ample in the earth), and slag is a by-products of the metal and copper field. The minerals are melted and spun into fibers.

ROCKWOOL items comprise concerning 16% or 40% pre-customer recycled substance dependent on the ROCKWOOL production facility area.

The amount of money of recycled articles is optimized to present the suitable thermal, acoustic, and fire defense attributes from ROCKWOOL solutions, while continue to maximizing the recycled content.


Rockwool factory in Byhalia, Mississippi
Rockwool’s production facility in Byhalia, Miss., was the company’s 1st generation operation in the United States. (3 Echoes Information Studio)

Dan: ROCKWOOL company began in 1937 in Copenhagen, Denmark, and the firm expanded to the North American market place in 1988.

So, our solution is relatively new to North The usa, but historically it is been about for pretty some time now. We just opened up a new sophisticated manufacturing unit in Ranson, West Virginia. 

All of our factories are zero squander-to-landfill, and mainly because stone wool insulation is hydrophobic, we use recycled rainwater to cut it. Even our factories that are wind- and h2o-run are self-making.

You can obtain out extra about how our sustainable factories get the job done on ROCKWOOL’s Sustainability webpage.

Pros of Stone Wool Insulation

Not only is Rockwool insulation very hearth-resistant, it also functions to comprise hearth and avert its unfold. (Rockwool)

Dan: ROCKWOOL stone wool insulation is obviously fireplace-resistant simply because it’s designed from rock. We never have to increase any fireplace retardants or substances that enhance flammability, so it is in no way heading to carry a flame and has zero smoke growth.

A further benefit is mould resistance. ROCKWOOL stone wool insulation truly repels water. There will normally be humidity in the air, specifically when you are chatting about crawlspaces and attics.

Currently being equipped to repel that humidity absent and without end currently being a mold and mildew-resistant solution, it is heading to help with the toughness of your wall assembly as very well.

Attic Insulation

An interior view of a house attic under construction with stone wool insulation
An attic is just one of the most expense-effective areas to incorporate insulation. (ROCKWOOL)

Dan: ROCKWOOL insulation batts arrive in 16-inch on heart or 24-inch on center by 47 or 48 inches lengthy, which is the best dimension for insulating attics. They suit completely amongst the studs, so you get that comprehensive cavity insulation.

Stage just one when putting in attic insulation is to examine the recent insulation. Make guaranteed there’s no humidity, mold mildew, rodent droppings or rodents dwelling there. Rodents really do not primarily treatment for ROCKWOOL insulation. 

Following inspection, simply just lay the batts down perpendicular to the joists, especially if the present insulation is only to the joists.

If the present insulation is beneath the joists, you will want to fill up to the joist line so you get a lot more continual insulation.

ROCKWOOL insulation commonly has a 4.2 to 4.3 per inch R-worth, so you really really do not need to have rather as a lot to strike the bigger R-value. Even so, we have products and solutions with a larger R-benefit principally for attics.

Rockwool Stone Wool Insulation Safe n Sound
Rockwool Safe’n’Sound is designed specifically for sound dampening to aid protect against sounds from touring. (3 Echoes Information Studio)

What About Seem Insulation?

Dan: The very best issue for sound insulation is density and mass, both of which ROCKWOOL has. 

The other component to seem insulation is friction healthy, how restricted it matches in that wall cavity. If you have one spot that you just cannot insulate thoroughly, all the sound is heading by way of that a person part and you’re lessening that seem insulation.

For more information on ROCKWOOL stone wool insulation, go to and check out our All About Insulation webpage.

Even more Examining

By Lela

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