half of the house is now sprayed with foam insulation. it is closed cell foam with R-7 per 1". we are doing 2" walls and roof and combine it with batts, as this stuff is quite expensive. it does seal and laminate the whole house envelope, making it air tight and structurally stronger.
also our siding hardwood was delivered today. ultimately we decided for brasilian mahagony which we will treat with Penofin Hardwood stain.