Foundation Waterproofing Membrane

[@RS-gw2kt]

I would think that this dimpled base layer could be used over the house wrap behind the siding when installing exterior mounted 2” rock wool batts to allow moisture a pathway out of it got past the siding. I’ve talked to a homeowner who wasn’t sure about installing retrofit injection foam insulation because he couldn’t get an clear answer on does the injection foam cause any long term issues to the Romex in the walls pertaining to overheating from being wrapped in foam. He opted to have the house resided but added exterior mounted rock wool insulation boards over the wrap to increase the insulation of his existing in wall R-13. Rock wool added R-7 for a total R- value of 20R. Seems like you could market the dimple layer for that application too as a water channel. Thoughts? If you market it that way and it’s a hit, I expect mine for free for the idea. 👍🏽

[@Cha-Cha_7]

I would have recommended to use polyiso as it has a much higher R-Value than rockwool. Polyiso can totally be used where board stock rockwool is used, unless on certain fire resistant commercial wall systems (in Canada it's ULc-S134 assemblies).

[@ecospider5]

The fire resistance of the rockwool in areas that have wild fire risk is really important. Rockwool is hydrophobic so I don’t think it need an air gap behind it. Foam on the other hand probably does.

[@yjc2418]

It looks really good at the same time expensive..😢 I wonder how much the cost is for 2,400sqf house.

[@mortshare7037]

Is this also meant for at or below grade insulated concrete foundations where the concrete wall is clad in foam?

[@Bart-dg6qv]

Yes, this system is supposed to cover and protect styrofoam. What we have here is plain .

[@brucelee-hl8zn]

What do you recommend if some part of the top (black part) is torn? I guess some UV resistant liquid membrane would do?

[@TapelessDrywallFinishing]

👍👍