I have read that the usage of rock wool is frequent in Canada and Europe, exactly where it is typically set up on the outside side of the drinking water-resistant barrier (WRB). It's also made use of as batt insulation and in many cases being a blown-in product or service in just masonry veneer air spaces.
Nonetheless I am able to’t consider corporation like roxwool with all their income and investigation would advocate something which would develop a challenge. But who is aware ?!? I’ll Make contact with their science department and report back right here .
We nonetheless necessary to figure out the way to mechanically fasten six inches of rock wool to the outside of the home. We needed a system that may guidance the vertical load in the insulation and also the siding in addition to horizontal lateral hundreds exerted by wind forces.
As his entirely newbie assistant I was hustling like mad just to keep up with him, so thanks greatly to your objective observation.
To accomplish our R-60 goal over the roof, we about-framed the present roof framing with 16-inch-deep TJIs and put in steel truss rods with horizontal keep-downs to avoid the new rafters from spreading.
To be a constant exterior insulation board, mineral wool averages R-five for each inch, corresponding to foam. Nevertheless mineral fiber adds a fireplace barrier towards the assembly that won't develop harmful fumes In the event the partitions must capture hearth.
“Depends on the quality of the installer,” he suggests. “If you can strike here Grade one with fiberglass batts, then pass to the mineral wool.”
When the rockwool will get moist, it appears like the dampness would just drain again down involving the brick and vapor barrier and acquire eliminated by using the drain technique I’m planning to have around the perimeter of the inspiration.
Yet another thing, If the attic features a hatch, or pull-down stairs, you'll need to ensure that is not a major hole in the air and thermal limitations. Here's some extra details on that:
Invoice - Thanks for the fast response! Do you think that there will be any dampness difficulties setting up the mineral wool insulation directly to the bottom side in the sub ground (no vapor retarder between sub floor and mineral wool) after which applying a layer of latex paint into the mineral wool? My understanding is mineral wool by itself acts like a vapor retarder on account of its density.
” The scientists conclude that “producing optimization should take place inside of this marketplace in order to improve the efficiency and mitigate unfavorable connotations of the material creation.” Moreover, they suggest the development of new insulation supplies with reduce carbon footprint and less Vitality-demanding manufacturing to additional decrease the damaging environmental implications.)
The comparison needs to be amongst differing kinds of insulation at the same R-benefit. There are issues mineral wool can do that other insulation can't do; the same is correct of spray foam, and when Individuals qualities are necessary, I use both of those solutions with no guilt. But in many conditions you will discover other insulation selections that have a lot less environmental affect.
I do not see any issue with painting the batts, just use a sprayer and a few low-cost latex paint. Every one of the paint might be carrying out is acting as a type of binder. I have never really had any concern with mineral wool shedding fibers while -- it should be great if it's not disturbed.
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