REMOTE vs. PERSIST approach for a flat roof?
I’m not sure I fully understand, but the REMOTE system states an advantage over PERSIST by allowing more insulation in the roof and not building a second roof structure.
Does this advantage apply for a flat roof?
I’m also trying to understand whether a vapour permeable barrier is needed for the roof and walls on the outside of the sheathing, before the exterior insulation is installed. REMOTE promotes vapour permeable, and PERSIST uses impermeable.
Also, do the current weather conditions in Toronto suggest using a vapour permeable layer over my sheathing so the plywood and framing can dry to the outside before I install my insulation (which are insulated metal panels so a vapour barrier).