But one particular issue is always that in the Winter season, your brick might be colder Using the insulation in position. That should imply it can dry less, and freeze a lot more, which could problems it over time. Mineral wool board on the outside could support, if that is feasible.
Does “breathable dwelling wrap” go concerning the baffles as well as Rockwool? The moment that is definitely finish added Rockwool will probably be put on major of your detachable pieces of sheetrock. Does your “intelligent vapor retarder like Membrane” go over the sheetrock and beneath the Rockwool? I don't expect this to get a straightforward method, but if it might work I’m up for it. The first objective is to take care of the challenging-attained pure air stream resulting from now-working soffit vents as well as re-recognized ridge vent.
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Because the outside partitions experienced an inside polyethylene vapor barrier, we could not only wrap the exterior of your home with four inches of polyiso rigid foam (an strategy that appears to becoming the normal for DER jobs in the U.
To attain our R-60 aim to the roof, we around-framed the prevailing roof framing with 16-inch-deep TJIs and set up steel truss rods with horizontal hold-downs to stop the new rafters from spreading.
No matter cost (not Significantly of variation listed here in Upstate NY for very similar R-values), and all of The explanations expressed by Robert F. in favor of mineral wool, There's 1 essential component no one has pointed out. The sound deadening component mineral wool brings towards the table wins arms down above fiberglass. We're builders who are already living in a zero Vitality house for six a long time that was insulated with Rockwool; R15 x three during the partitions.
Also, I improperly stated the carpenters found that a regular "Wooden" hand saw worked finest for cutting the rock wool - it had been a PVC hand noticed which they felt labored greatest, just like the subsequent hyperlink:
in just one climate space. That’s as the ambient air in mixed-humid climates tends to have substantial levels of moisture the vast majority of yr. In addition, because air con is mounted in the majority of new homes, cold surfaces are current on which condensation can arise.
You didn’t point out everything with regard to the conditions within your roof, so we’ll believe your roof is in fantastic issue and no ice dams have shaped in your roof. (Ice frozen on the roof higher than your exterior wall, resulting from snow melting on your own roof then refreezing nearer the edge of your roof, making a “dam” which will maintain drinking water on your own roof.). H2o in some cases can leak in, and move by way of intricate paths to end up in unanticipated destinations. Hopefully no challenge within your case.
See Cor-a-vent products and rain display posts or issues on This website for more Thoughts, Or even Many others will recommend their finest Suggestions on your own question right here.
In the event you study in the many content on GBA, you may get an idea of a lot of the standard concepts that will let you to be aware of where issues must Choose ideal effectiveness. You could always ask in Q+A as well if you receive stumped of For those who have a circumstance that doesn't fairly fit any of the illustrations from the content.
I agree with all that Monthly bill reported and hope that you'll be not overthinking this. In attics like yours there is an easy and cost efficient solution: Pull out the outdated insulation, place plenty of energy into air sealing the ceiling in the attic, and blow in just as much insulation as you'll be able to pay for, with blocking and vent baffles at the eaves to prevent wind washing and manage air stream for the ridge vent. This can be messy and someday awkward to accomplish, but also pretty Do-it-yourself-friendly do the job.
I'm happy the Heco Topix Therm labored on this undertaking. I recall that the mineral wool thickness was ideal at the sting in the operating vary wherever it would not compress the MW. It would not audio such as you had excessive difficulty.
Hello Fred, Sorry for delay in reaction.... As the two Martin and Michael commented, there are mineral wool panels created for below grade disorders and assuming that the perimeter soil is well-draining, this beneath quality get more info mineral wool could be a very good alternative to foam items. On the other hand, the venture highlighted in this short article was a deep Strength retrofit of the present composition and complete excavation exposing the exterior foundation might have been necessary to set up insulation on the outside facet of the muse - not a practical thought on this restricted urban site.