I am hoping we don’t should tear down all of the outside wall drywall to re-insulate the house if an interior vapor barrier is needed …. (Spray foam is just not an alternative resulting from chemical sensitivities in the home) – and would value any views.
Some information suggest that persistent inhalation of mineral wool might result in higher respiratory outcomes. The EPA has not categorised rock wool or slag wool for carcinogenicity. But when setting up it, use a dust mask at bare minimum.
Some builders have started putting in a steady horizontal layer of mineral wool insulation less than concrete slabs
I just skimmed as a result of looking for some sign why the final study course of sheathing was taken off, adhesive utilized and afterwards re-connected but could not come across it. Not sure what the goal of which was possibly.
To obtain our R-sixty purpose to the roof, we more than-framed the existing roof framing with sixteen-inch-deep TJIs and put in steel truss rods with horizontal hold-downs to prevent The brand new rafters from spreading.
For those who have bricks or cement block foundation partitions, you are going to want a vapor barrier to go all the way up the crawlspace wall to the best. It’s not obvious to me that the insulation has got to go on 1st; if you use rigid foam (instead of open insulation that should be enclosed on all sides), then it looks like you can set the insulation on second.
The designer of the deep Electricity retrofit undertaking in Massachusetts specified six inches of mineral wool insulation for the exterior facet on the walls
Even though we did not must design and style the roof technique to dry to the exterior, we elected to work with rock wool batts. We mounted a few levels of five-inch batts, overlapping the seams in the TJI cavities.
Chris was aiming to accomplish a higher-efficiency, reduced-Electrical power property, however he comprehended that his early remodeling choices confined his alternatives relocating here ahead. A single of such limiting choices was the installation of a polyethylene vapor barrier on the inside facial area of his exterior wall framing as he gutted and remodeled Every single room.
In turn, we screwed a perforated metallic shelf using a nylon insect monitor to help and protect The underside fringe of the rock wool insulation even though supplying air flow and weep openings for your rainscreen structure. We utilised exactly the same uncomplicated bracket method for the window and door headers.
If you browse from the a variety of content articles on GBA, you can get an notion of most of the basic principles that will assist you to to know where by matters must go for ideal efficiency. You can constantly inquire in Q+A far too if you will get stumped of if you have a condition that doesn't very match any with the illustrations inside the article content.
Intumescent paints and sealants broaden when heated, and therefore are utilized for hearth blocks. I would NOT use such a paint to the mineral wool. It isn't really desired for fireplace proofing possibly, the mineral wool alone is now essentially fireplace evidence (and is particularly useful for hearth stopping). There isn't a gain to Placing intumescent coatings on wires and pipes.
Systematic eviction came about as we put in the siding. We simply just filled the bird holes (as well as other modest gaps all over openings and brackets) by tension fitting some unfastened rock wool product.
two) Stairwell Isolation Partitions: You will find now 4 2X6 quasi-knee walls that, coupled with an insulated reliable core doorway, will isolate the attic in the unheated garage down below. I have started to imagine these partitions as vertical versions of your attic’s roof, with “breathable property wrap” and “smart vapor retarder like Membrane” equally sandwiched throughout the Rockwool insulation.