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On this particular At present’s Home-owner Podcast, we’re speaking all about stone wool insulation with Dan Edelman, Rockwool’s Nationwide Enterprise Improvement Supervisor.
What’s 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 within the earth), and slag is a by-product of the metal and copper trade. The minerals are melted and spun into fibers.
ROCKWOOL merchandise comprise between 16% or 40% pre-consumer recycled materials depending on the ROCKWOOL manufacturing facility location.
The quantity of recycled content material is optimized to offer the perfect thermal, acoustic, and hearth safety properties from ROCKWOOL merchandise, whereas nonetheless maximizing the recycled content material.
ROCKWOOL’s Historical past
Dan: ROCKWOOL firm started in 1937 in Copenhagen, Denmark, and the corporate expanded to the North American market in 1988.
So, our product is comparatively new to North America, however traditionally it’s been round for fairly a while now. We simply opened up a brand new superior manufacturing unit in Ranson, West Virginia.
All of our factories are zero waste-to-landfill, and since stone wool insulation is hydrophobic, we use recycled rainwater to chop it. Even our factories which can be wind- and water-powered are self-generating.
You will discover out extra about how our sustainable factories work on ROCKWOOL’s Sustainability webpage.
Benefits of Stone Wool Insulation
Dan: ROCKWOOL stone wool insulation is of course fire-resistant as a result of it’s constituted of rock. We don’t have so as to add any hearth retardants or chemical substances that enhance flammability, so it’s by no means going to hold a flame and has zero smoke improvement.
One other benefit is mould resistance. ROCKWOOL stone wool insulation really repels water. There’ll at all times be moisture within the air, particularly while you’re speaking about crawlspaces and attics.
Having the ability to repel that moisture away and endlessly being a mould and mildew-resistant product, it’s going to assist with the sturdiness of your wall meeting as nicely.
Attic Insulation
Dan: ROCKWOOL insulation batts are available in 16-inch on middle or 24-inch on middle by 47 or 48 inches lengthy, which is the right dimension for insulating attics. They match completely between the studs, so that you get that full cavity insulation.
The first step when putting in attic insulation is to examine the present insulation. Make certain there’s no moisture, mould mildew, rodent droppings or rodents dwelling there. Rodents don’t primarily take care of ROCKWOOL insulation.
After inspection, merely lay the batts down perpendicular to the joists, particularly if the present insulation is barely to the joists.
If the present insulation is beneath the joists, you’ll need to fill as much as the joist line so that you get extra steady insulation.
ROCKWOOL insulation usually has a 4.2 to 4.3 per inch R-value, so that you really don’t want fairly as a lot to hit the upper R-value. Nevertheless, we’ve got merchandise with a better R-value primarily for attics.
What About Sound Insulation?
Dan: The most effective factor for sound insulation is density and mass, each of which ROCKWOOL has.
The opposite half to sound insulation is friction match, how tight it suits in that wall cavity. When you have one space you can’t insulate correctly, all of the sound goes via that one part and also you’re lowering that sound insulation.
For extra info on ROCKWOOL stone wool insulation, go to ROCKWOOL.com and take a look at our All About Insulation webpage.
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