You'll need to notch them out a bit more to get that 4"soil pipe in!! Sent from my mobile communicating device thing using Talkatap.
Simple really. I walked around the house and wasn’t able to find anything requiring me to suck through my teeth, or tut or even give a slight eye roll. I can’t have that. So I nipped to the van and got the chop saw out a bit sharpish. thankfully I’ve stretched this boiler service to three days now. That was a close call. I nearly only got paid for what they’d booked me for.
Why you notched the joists out then run the Hep tube under them. anyway no matter just foam it up… be fine.