Best insulation upgrade choices?
I am going to replace some siding on the outside wall of my kitchen, Laundry room, and Family room. This is old fiber board siding. The house was built in 1984 and is located in the Atlanta area. The house has an unfinished block wall basement. Since I am removing the siding I have an opportunity to reinsulate the walls. We get cold air when we open the kitchen cabinets which back up to this wall and have their own wood backing. The chooses include:
1) Install Micro E foil wrap over the existing two sided foil sheathing board once we remove the siding and do not go any further but install tyvek housewrap over the micro e wrap then add the cement board hardie plank
2) Take the wall down to the studs and remove the batt insulation (R11) then have the pockets spray foamed (expensive) Pay a professional to do this.
3) Take the wall to the stud removing all insulation cut pink rigid foam board 2 two inch pieces flush and tightly install between the studs. Board has R10 value for each 2″ piece. Then add new sheathing (foil coated on both sides) and finally tyvek housewrap and hardie plank cement siding.
I am concerned about moisture build up and mold but want to upgrade the wall insulation while I am doing the siding work. Which is the best option or do you suggest others.
GBA Detail Library
A collection of one thousand construction details organized by climate and house part