Mineral wool retains its shape a lot better than fiberglass or cellulose. It will not settle within just walls, leaving cold gaps together the very best plate. If there’s air infiltration, dampness is not going to compromise or degrade its thermal general performance; and the fabric supplies no meals to help microorganisms.
Am I location myself fo opportunity mold trouble? I might be talking to Roxwool science Office tomorrow, will see what they say about this .
We still desired to determine the way to mechanically fasten 6 inches of rock wool to the outside of your home. We wanted a method that would help the vertical load from the insulation plus the siding along with horizontal lateral masses exerted by wind forces.
EIFS properties and PERSIST structures complete quite very well, given that the designer and installer approach for rain, And do not install inside polyethylene.
Even so, we wished Resolution which was less difficult, much less expensive, and would stay clear of the necessity to notch the insulation boards throughout the fiberglass clips.
Probably not feasible to put it on the outside. The exterior brick goes from quality to roofline. I don’t know for sure but I don’t Assume freezing could be a problem.
The designer of a deep Strength retrofit project in Massachusetts specified 6 inches of mineral wool insulation for the outside facet from the walls
You propose- to put in home wrap against Basis wall ahead of setting up insulation ? What for ? To limit moisture traveling from CMU wall to insulation ?
Bill: Thanks for this extensive reply to my query. You have got released various new concepts for me (polyiso and "smart vapor retarder like Membrain"). It may be really worth noting that as element of the project I developed a landing and "turned" the very best 3 methods on the garage's first stairway.
Risk-free'n'seem has the identical R for every inch worth as "frequent" mineral wool -- about R4.3 per inch. The real difference is the fact that Help save'n'seem is only about 3" thick, to go away an air hole inside of a 2x4 studwall which can help attenuate seem when you're carrying out soundproofing. This will make Secure'n'sound a little bit shy of R13 when it comes to thermal functionality.
“With sufficient exterior click here insulation to stop condensation, an airtight layer on the sheathing, and a reasonably airtight layer at the interior, I don’t think the selection of insulation would make a giant variation,” Maines states.
The comparison should be in between differing types of insulation at a similar R-benefit. There are issues mineral wool can do that other insulation cannot do; precisely the same is genuine of spray foam, and when All those properties are demanded, I exploit both equally solutions devoid of guilt. But in several conditions there are actually other insulation decisions which have much less environmental impact.
On the other hand, according to this Rockwool Sustainability Report, the industry promises mineral wool may become “net carbon optimistic” within just 200 times, “this means the carbon emitted over the manufacture of creating insulation is offset by the prevented emissions of your insulation’s use in structures.
Are there any worries about dropping R -value from soil backfill compacting the mineral wool, or from floor drinking water flowing with the wool throughout or subsequent a rain storm ("h2o washing")?