Cheers @ronw – Will be going with 1″ styrofoam and Tyvek house wrap on the sheathing. Flashing the bottom and concrete, and then add siding to bring it flush. That should give me a nice bit of extra insulation, before I insulate and drywall inside.
Actually, footings were in place before the pour…….
Haven’t measured the ledge overhang, but will probably just add flashing and then siding to bring it flush…Still mulling over what my best option is.
Depending on the amount of hangover, flashing would be the least I would do. The extra insulation from 1″ foam board might be a good thing too.
Good call on the extra insulation. You can get styro insulation that has a “house wrap” bonded right to it, usually foil faced. Just tape the seams with the same stuff you use on house wrap.
From my understanding and I could very well be wrong, I’ve just heard so many different conflicting opinions on the matter – taping the seams of your foam is actually a bad thing.
I’m guessing your thinking of IKO silver board with tuck tape on the seams. It actually seals it too tight, and leaves no room to breath.
Typar/Tyvek whatever kind of house wrap you use is a directional wrap that breaths out. So when wanting to seal the exterior the best you can, a house wrap that is taped is best before foam with its joints left unfinished.