I’m getting ready to do an exterior remodel on my 18 yr old house.  TYP 2×4 framing, 1/2″ black foil faced foam board insulation with plywood corners an Tyvek,  Andersen Narrowline windows and cedar siding.

The cedar should never have been put on over the foam board but it lasted this long but is checked and cracked all to pieces on the west and south sides of the house.  

My plan is to make my house easier to live with as I grow older ( meaning less to keep up )  I may sell out and build a new house, but then again I may have to stay put.  If I do sell it, I want the most curb appeal for the money while keeping in mind that I may be here till the end. 

I plan to replace the windows with K&K or similar with aluminum exteriors.  The siding will be replaced with Hardi and the trim with a composit material.  I’m not sure how to handle the sheathing.  I want to be able to close the doors without the house rattling.  I plan to cover the walls with 7/16″ OSB or 1/2″ plywood and Tyvek.  Should I just go over the foamboard and Tyvek or remove them and start at the studs?

I’m interested in any other ideas or past projects of a similar nature.

k