Interior insulation around above grade stem wall at garage door
I’m trying to find details on bringing the insulation up the interior side of a stem wall at the garage door intersection. Very rough image attached.
– Detached, conditioned garage
– 8″ wide and 8 ” tall stem wall
– 2″ under slab and slab edge insulation
– 1.5″ exterior insulation that goes down to brick ledge
– Climate zone 4
In past basements with 42″ knee walls, I’ve just framed walls in front. Problem is, going around the entire building up 8″ seems like a lot of work for a conditioned garage. Main reason I’m considering is just to gain familiarity with these techniques on my own buildings.
1. Is it even worth it? Gains probably won’t make up for cost. Just be happy with the 1.5″ on the outside.
2. If gains aren’t worth it, how would you finish the slab edge insulation. Architect doesn’t want to 45 degree it due to weakening the concrete at that point. Metal insect barrier around perimeter of garage to cover it?
3. If gains are worth it, does anyone know of a simpler way to cover the exposed insulation up the stem wall? Some sort of vinyl flashing product? Anything other than furring strips & drywall that is easier and cheaper?
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