Mineral wool retains its condition much better than fiberglass or cellulose. It won't settle inside of walls, leaving chilly gaps alongside the highest plate. If there’s air infiltration, humidity will likely not compromise or degrade its thermal efficiency; and the material supplies no food items to guidance microorganisms.
The R-benefit/inch ought to be updated (significant mainly because it seems this short article is staying recycled): it is R4 to R4.2/inch for Rockwool solutions as the first commenter mentioned.
We nevertheless needed to determine tips on how to mechanically fasten six inches of rock wool to the outside of the home. We would have liked a procedure that may support the vertical load from the insulation as well as the siding and horizontal lateral masses exerted by wind forces.
I hope that Mark sees your comment and provides his impression. Meanwhile, This is what I know: mineral wool panels happen to be utilized for decades to insulate the outside of Basis walls.
Everything can be done, like your advised means of getting rid of poly. It really is just a tremendous quantity of perform. I wouldn't advocate executing it Except there have been other explanations to eliminate the prevailing sheathing.
We renovated 2 rooms and insulated the exterior partitions with Rockwool Comfortbatt R15s. I really such as the rigidity and density in the Comfortbatt products and am endeavoring to prepare the very best system for an attic set up. The rafters and joists are 2×six lumber spaced sixteen″. I understand we have to permit air flow although the soffit and will insert manufactured or Do it yourself soffit baffles.
As we continued to overview a variety of very long fasteners, most all of which might need to have some kind of squash block to help you retain uniform depth and guide in lateral bracing, we found out the Heco Topix-T fastener (see image beneath). This German fastener is actually a dual-threaded screw with a “damaged” thread or clean shaft among the top and base threads.
In addition to a constructive link to the present wall plates we were ready to remove the structural loads on the prevailing 2×6 roof rafters, which ended up the two structurally undersized and unable to tackle Considerably insulation inside their confined depth.
Best of luck along with your challenge, your own home ought to be additional cozy and Power productive immediately after your attempts. Remember to post a completely new question in the event you or your contractor could use more info or ideas on some matter.
That is solidly in the midst of Course-III vapor retardency, comparable to that of ordinary inside latex paint. The housewrap also would be giving at the very least some level of capillary break to Restrict the quantity of wicking of ground dampness to the fiber.
It appears like there is some kind of adhered flashing terminating the WRB that's in keeping with the detail.
Intumescent paints and sealants broaden when rockwool insulation heated, and therefore are utilized for hearth blocks. I wouldn't use this type of paint to the mineral wool. It's actually not desired for fireplace proofing possibly, the mineral wool alone is presently essentially hearth proof (and it is utilized for fireplace stopping). There is no gain to Placing intumescent coatings on wires and pipes.
I am glad the Heco Topix Therm worked on this undertaking. I remember which the mineral wool thickness was proper at the sting in the functioning assortment where by it would not compress the MW. It isn't going to seem like you experienced excessive trouble.
” The identical report concludes that being an Electrical power-intensive enterprise, Rockwool ought to “develop our melting systems, which happen to be at this time predominantly dependant on foundry coke.”