Hello
I have some material/execution questions regarding my pictures below. I have two penetrations where I have extended the new drainage out into the crawl space, how and with what do I seal these two penetrations, the material in the wall is the same as the bricked-up window opening. I want to plaster the window opening smooth in connection with the renovation of the boiler room, how do I solve this most easily and with what material?
Thanks in advance!