How do I Prep/Insulate Stud Walls For Moisture Protections (exter
HOW DO I PREP/INSULATE STUD WALL FOR MOISTURE PROTECTION AND INSULATION (BOTH EXTERIOR & INTERIOR)
I am now on to my 2nd bathroom. I didn't ask this insulation question at the time of the first bathroom remodel so I don't really know how to do this. I just assumed I knew on the first job.
THE PLANNED DESIGN:
I have an exterior wall that will need insulation. Then the wall covering. I plan to have a vanity and toilet up against this exterior wall. I may or may not tile a wainscot in the open areas of the wall. Other wise the walls will be painted, and cabinets, vanity and toilet installed. The plumbing will come up from the floor and not in the wall.
I will have an exhaust fan in the room vented through the roof.
I will have a shower and washer and dryer along an interior wall that is also torn down to the studs. The other side of the wall is lathe and plaster, plaster keys visible in the wall space.
There was some mold growing on the dry wall that was placed over the original plaster in the room. the mold was probably a result of moisture leaking around the drop in sink, and the shower surround. Everything is now out, down to the studs. The studs will be looked over by my carpenter. I will not be doing the structural repairs, he will do what needs doing.
What I see looking at the sheathing of this old house is silver dollar sized holes at every stud, on the outside black material. I do know that there is 12" siding of a pressed material and painted on the exterior. I had thought that the old lab narrow siding was still under all, but this appears to not be the case as the holes are indication to me that insulation was blown in after it was built. I am thinking that the old lap siding was removed in the 70's and it was resided after insulation blown in. I will see DML later today and will ask her if she remembers this part of the remodel from the 70's.
Then 5 years ago my DML put up Sears vinyl siding over the 12" pressed board siding. There was a layer of closed or open cell insulation that they installed under the vinyl.
1) Do I just get the paper backed insulation and staple it in place with the paper facing into the room?
2) If this exterior wall would have a shower against it, how would I do the insulation, the same?
3) Is the siding layers an issue in the insulation/moisture protection strategy?
4) I would like to treat the wall with the wash/dryer to help with sound deadening, as this wall is shared with the living room where the TV is located. How can this be done?
5) Do I insulate the interior walls too? There will be some pocket doors so those wont have insulation needs.
I have to run, but I can post a plan view and some elevations of my project this early afternoon if that is helpful.
This post was edited by enduring on Sun, Apr 21, 13 at 10:54