was there a “better” way for me to insulate this 2′ kneewall? – GreenBuildingAdvisor

in hindsight, i should’ve asked before doing my own thing .  i did spend   a whole 15 minutes googling how to insulate a 2′ kneewall where the interior ceiling height changes from 8′ to 10′. the  wall was already covered by osb and has blown in fiberglass, so somewhere around r13-r15.

https://www.energyvanguard.com/blog/how-to-insulate-a-short-attic-kneewall/

i found that, but i had a few holdups on those options. i did not want to mess with sprayfoam. plus, the cost was too much. i had around 60 linear feet of this knee wall to deal with. 

 to get adequate insulation over the top plate, i’d pretty much need an entire 4×8′ of osb or plywood which wouldn’t fit through the attic opening.  then i’d have to do some type of framing to stand up the sheet of wood.

…so i did the framing to hold up a “wall”, skipped the 4×8, and used netting to essentially treat it like blown in for an exterior wall.

https://imgur.com/a/k7nGKZ1

i had an abundance of 16 and 24″ r-30 fiberglass batts. so for one portion i placed the net about 18″ from the wall and used a couple of layers of the 16″ batts before the cellulose, then around 26″ for the 24″. i did agitate the fiberglass and cellulose as i was blowing it, to help it settle around in the cracks.  theres about 16″ of cellulose cover the top plate.  r-30 is code where i’m at, so 16″ is great.

 

previously, the 8′ portion had about 10″ of insulation going up the short wall, then the 10′ portion had fiberglass batts covering the top plate, with more running perpendicular. obviously that left a lot of open space. a crazy amount of heat was radiating to the interior through the 10′ ceiling rooms near the top, so i’m hoping that will fix it.

 

just curious how other people handle this?