Mineral wool retains its condition a lot better than fiberglass or cellulose. It won't settle within walls, leaving cold gaps along the very best plate. If there’s air infiltration, dampness will not likely compromise or degrade its thermal overall performance; and the material supplies no food stuff to support microorganisms.
They might also contain insulating the garage ceiling with John Manville R-30 Kraft Fiber Glass. Currently being a little bit of the stubborn Do-it-yourself-kind, I am inclined to take Each one of the nicely-assumed-out recommendations and operate with them! There is nothing additional to say, other than that your persistence with my hairy minimal attic undertaking is appreciated much more than you may at any time consider!
That will imply 1” polyiso on the attic facet of your studs, then mineral wool during the wall (I’m assuming 2x4 partitions right here, For those who have 2x6s you will need thicker foam to keep up exactly the same ratio of batts to foam as well as ratio is definitely the significant element) and also you’re superior to go. When you don’t desire to use rigid foam around the attic facet in the partitions, then I’d tack up some breathable housewrap (don’t use poly listed here!), then batts, and I’d use a sensible vapor retarder like MemBrain on the inside beneath the drywall. If this doesn’t seem like Whatever you’re attempting to do, post a drawing exhibiting exactly where you ought to insulate that can help everyone below understand what we must know in order to help you. Bill
In the Winter season, your inside relative humidity should be minimal and Together with the MemBrain close to the inside, it may even be dry. So it can Permit very little vapor move from the interior for the concrete.
My dilemma Is that this, can rockwool be made use of instead of the foam board? Is it rated for floor Call or Use a termite resistance?
We utilized the normal 24-inch huge industrial acoustic rock wool batts for this vented roof software, plus the batts fit snugly inside our TJI framing established at 24 inches on Centre.
The metallic cladding was our "veneer" to shield the insulation and shed the vast majority of rainwater, but we realized and accepted that h2o would get guiding this veneer and could weep out with the perforated shelf at The underside with the cladding., The outside window sills ended up sloped primarily to get rid of snow, but we were not extremely anxious with the cladding information around the window openings as we were assured the window openings were adequately sealed in the Tyvek/sheathing layer. Precisely the same rules utilize with other cladding systems, including wood siding or Hardi-siding - water will normally get driving the cladding and an appropriate rainscreen layout will permit the h2o to weep out. In Individuals purposes, It usually helps to minimize the quantity of h2o driving the cladding with right flashing & installation procedures, but caulk at siding & exterior trim butt joints is mainly completed for aesthetic explanations if in the least. Hope this allows explain the look intentions!
Due to the fact rock wool resists fire, mold, and mildew, designers should figure out that this material has additional works by using than fireplace-halting and acoustical Handle — the uses for which it is frequently specified in the U.S.
We prepared to setup the Tyvek right above the present 1×6 sheathing boards. These boards had an irregular surface area, and we thought the medium density of your MD board, when marginally compressed, may possibly aid eliminate doable air gaps between the rock wool insulation and the irregular sheathing.
Vapor retarders go around the "heat in Wintertime" aspect when you're in a heating dominated climate, so in between the insulation and the drywall. Using something like housewrap on the other (attic) aspect in the insulation exactly where the insulation would otherwise be exposed on a vertical wall really helps to limit convection currents from cutting down the R value of the insulation.
What is the air exchanges for every hour (ACH) and/or what's the volume of your home for this air leakage end result?
The explanation is always that whilst mineral wool provides a slight edge above fiberglass in acoustic transfer in a head-to-head comparison, the instant you put in either into a wall, it becomes the minimum vital Section of that assembly Which slight edge is erased.
Even though mineral wool incorporates recycled content, it's, in turn, difficult to recycle with couple of reuse applications (Even though the field is earning an effort to reduce landfilling and improve “just take again” expert services). It does not decompose or break down when disposed of.
You don’t need a vapor barrier when insulating a ceiling among conditioned Place and a vented attic. You often require a vapor retarder (you usually don’t need a vapor barrier) in some kinds of walls. I do think what you have is one area like the “Satan’s Triangle” place of story as well as a fifty percent kind homes. If that’s the situation, you should protect website the attic side of your wall insulation to stop convection currents from reducing your insulation’s success. From time to time residence wrap is utilized, but I choose to use polyiso. If you use polyiso exactly the same thickness as is needed as part of your local weather zone (most likely R5), then you don’t will need an interior side vapor barrier.