my wife and I just bought our dream home and I am just beginning the process of renovating. The House has stucco and stone on the exterior with concrete block walls built in 1948. the house has already been gutted and we are replacing everything- plumbing, electric windows, roof, etc.. My dilemma is how i will insulate??? if I modernize this home with a goal of efficiency  and make it Air tight with controlled heating zones, radiant heat, modern windows and doors, mechanical ventilation and vapor impermeable spray foam will I run into problems with water and moisture in the future. From what I understand Stucco will absorb water and if the house can no longer “breath” as it did with its original un-insulated plaster walls, will I be setting myself up for disaster. this home is in Westchester county NY with cold winters and hot humid summers. removing the stucco and re-siding is not in the budget for this already massive project I have decided to undertake. does anyone have experience with this type of renovation? all help, tips, suggestions, Do’s and Dont’s would be appreciated.