How do I fix this duct nonsense?
I’m in the process of redoing the attic access to my second floor attic. I was up there doing conduit to rewire the upstairs air handler and upstairs lights (I wanted minimal extra holes in the structure, conduit let me get everything from the panel to the attic in one shot) and the poor execution by the previous owners got to me so I expanded the scope of my project.
So far I’ve framed in the opening I want and made a 10″ high insulation dam. I may add additional dam height (ply or foam board) in a more removable fashion, I was concerned about actually being able to crawl over the lip if I went any higher.
Before and in progress shots: https://imgur.com/a/Coz2n9H
As you can see, before it was just a ragged hole. They sawzalled through the ceiling structure. To close it up, they just stuck a sheet of duct board over it and screwed it to what was left of the ceiling. The closet would get roasting hot in the summer. In the winter it’s fine because it’s sucking up all the warm air from the house!
I also ran conduit for a home networking project, if anyone is wondering after looking at the pics. That’s the big box in the foreground.
Anyway, I have a plan to insulate and seal the attic access with a new hatch. Where I need help is those ducts. I don’t think it’s practical to run them in the conditioned space. Limitations of a 94 year old house. That said, flex through a ragged hole in the ceiling is obviously not right. Is there a product specifically for making a clean penetration though drywall? What would be the most energy conscious way to fix this without a full reconfiguring of the system?
Only two of the runs enter the attic. Two in the photo terminate into the hall outside the closet (duct going to the left) and into the room next door (duct doing the boa constrictor move around the front). Those are in the conditioned space already.
Any input is truly appreciated.
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