I bought a house last year and I have the classic, room that half hangs over the garage is cooler...so after investigating i have decided to take down the existing insulation and spray foam a bunch of the floor and half walls from the garage side.
My question: i have 2 vertical bulkheads that each contain 2 5" round ducts and within this bulkhead, there is some pink insulation, but no vapour barrier and the temperature output from the basement when i test the duct to the room is very different. i want to know if it is worth while to have the bulkhead fron taken off, remove the pink insulation and after taping all the ducts up properly, having it all spray foamed at the same time?
Note: another room (above the main floor, not garage) also uses one of these ducts and is always cooler so i assume this is where the problem lies.
Any sugguestions would be appreciated.