Can't find an answer!
Does anyone know how long styrofoam insulation on the exterior of a home and withstand the elements? Do you have to side your home immediately or can you wait a year or two?
I'm asking this as a neighbor has built a house but hasn't sided it yet. It's been about 9 years and I'm really curious to know if he's getting any R value anymore or not.
Besides that,, it's a real eyesore on our street. lol