We are in the process of remodeling our master bath, which will entail some framing changes on the outer wall to modify the location/size of windows. I have started to take off the cedar shake shingles on the outside wall (~130 sqft) and we've gutted the inside down to the studs.
Questions:
1) The way the shingles were installed they used horizontal 1x4's on the studs, then tar paper, then redwood shingles, then the outer cedar shingles. When replacing this, should I use OSB on the studs?
2) If I can afford spray foam insulation, should I finish the outside first, i.e. studs (+ OSB?) + Tyvek + shingles and spray it from the inside? Or should I finish the inside first using a vapor barrier and drywall, and spray the insulation on from the outside?
3) What true alternatives do I have instead of spray foam? There were some fiber glass batts between the studs, but they looked pretty worn down and probably weren't very effective anymore... I'm going to have radiant heat in this bathroom so I'd like the insulation to be effective and long-lasting.
Any advice would be greatly appreciated!
Thanks,
Martin
Questions:
1) The way the shingles were installed they used horizontal 1x4's on the studs, then tar paper, then redwood shingles, then the outer cedar shingles. When replacing this, should I use OSB on the studs?
2) If I can afford spray foam insulation, should I finish the outside first, i.e. studs (+ OSB?) + Tyvek + shingles and spray it from the inside? Or should I finish the inside first using a vapor barrier and drywall, and spray the insulation on from the outside?
3) What true alternatives do I have instead of spray foam? There were some fiber glass batts between the studs, but they looked pretty worn down and probably weren't very effective anymore... I'm going to have radiant heat in this bathroom so I'd like the insulation to be effective and long-lasting.
Any advice would be greatly appreciated!
Thanks,
Martin