I intend on encapsulating the crawl utilizing a dehumidifier. The house is near a marsh and therefor the bottom is fairly soaked so I will likely be putting in a drain and sump program in the crawl. I had been setting up on installing foam board towards the brick foundation then sealing with a vapor barrier.
We then centered on the rock wool board products, due to the fact their greater density would lower the wind-washing concern as well as their amplified stiffness may aid the set up of the furring strips and siding.
Fred, while I have not used mineral wool In this particular software myself, as I choose inside foam Once i really have to do basements, I did analysis The subject for the Fine Homebuilding article (), and I know people who have used the method. Anecdotally, insects are less drawn to mineral wool than to non-treated foam, but one of the most pest-resistant content might be foam treated using an insecticide. (Within this course, I choose borate-addressed EPS; borate just isn't harmful to humans as well as the blowing brokers in EPS are fewer awful than those in XPS.
Mark, Thank you on your reply and reviews. Did you consider using EPS foam as an alternative to mineral wool for the above quality walls? Although much less vapor permeable than mineral wool, wouldn't EPS Yet make it possible for some drying to the exterior and be lighter and more cost-effective than mineral wool whilst delivering approximately the identical R-value for each inch? barkingeater
Listed here in Northern Minnesota that insulation program that greatest retards warmth transfer is psychologically felt as hotter; we recognize Individuals methods and supplies that produce a small sloped heat transfer gradient.
Irrespective of price (not Considerably of distinction right here in Upstate NY for similar R-values), and all of the reasons expressed by Robert F. in favor of mineral wool, There exists 1 crucial component nobody has pointed out. The audio deadening ingredient mineral wool brings for the desk wins palms down about fiberglass. We've been builders who have already been living in a zero Vitality residence for 6 many years that was insulated with Rockwool; R15 x three during the partitions.
Some builders have started installing a continuous horizontal layer of mineral wool insulation less than concrete slabs
Since rock wool resists fire, mold, and mildew, designers need to realize this materials has far more takes advantage of than fireplace-halting and acoustical Command — the takes advantage of for which it is generally specified in the U.S.
This looks like it would reduce the exposure of foam to bugs in the event you’ve completed a great career encapsulating. [Unique question: does the insulation have to go onto the crawlspace wall first, before the vapor barrier? I do know some encapsulation businesses try this, but on poured partitions. They then only go about 6” up and tape the vapor barrier for the rigid foam.]
In case you are building a vented cathedral ceiling, there is tons of information available relating to this With all the lookup box. In case you are creating a vertical exterior wall, be sure it complies with Table two A or B here.
Some builders have begun installing a continuous horizontal layer of mineral wool insulation underneath concrete slabs
The comparison ought to be involving different types of insulation at precisely the same R-benefit. You will find things mineral wool can try this other insulation can not do; exactly the same is legitimate of spray foam, and when People qualities are required, I exploit the two products with no guilt. But in several situations you'll find other insulation decisions that have a lot less environmental effects.
Many thanks for highlighting There is certainly a substitute for foam for a DER. Foam has a lot of attract backs ecologically, impossing the best carbon burden on the job of any insualtion. In NYC for many years EIFS methods ended up banned by regulation - because of the thick choking, blinding and toxic smoke developed any time a developing burns - and the danger it posed to fireplace fighters. The challenges keep on being, as does much from the ban. Isn't really a DER with 4 layers of overlapped foam just One more EIFS process, While using the same moisture trapping / wood rotting history.
within the cavity is small. and Boosts permeability when RH is previously mentioned 60% in summer click here months to Permit moisture escape when needed.