bathroom demo- remodel for old 50 year old home- insulation question

hi, i am demoing my bathroom in my 50 year old house... do I need to insulate the walls before the sheetrock goes in? or is this just for sound? thanks
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one more important thing.... The shower lies against the outside wall.. the tub does not
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outer walls and any wall conneting to a area thats not heated or colled must be insulated.
on a small job your better off to do all walls, spray foam at R 7 per inch is best.
while the walls are open be certain to upgrade all the wiring, espically if you have knob and tube
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I don't know where you live, but knob and tube wiring has been obsolete in most parts of the United States since well before 1950.
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On Thu, 17 Mar 2011 18:32:58 -0700 (PDT), "hr(bob) snipped-for-privacy@att.net"

Just because it's obsolete doesn't mean it doesn't exist.
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On Mar 23, 12:17am, " snipped-for-privacy@att.bizzzzzzzzzzzz"

He measn that it was not used in new construction 50 years ago. So if the house is the age the op states then there isnot going to be any knob and tube wiring in it. More likely the bath is not own it's own circuit or is not on a 20amp circuit. Which a lot of inspectors can require if you touch the wiring at all. But if the walls are stripped not would be the time to add a dedcicated 20 amp circuit with gfci protected outlets.
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On Thu, 17 Mar 2011 14:01:02 -0700 (PDT), KOS

You will want to insulate exterior walls (meaning the other side of the wall is the outside of the house) for sure, with a proper vapor barrier. Interior walls it's your choice. Regular insulation will help a little with blocking sound, but not a whole lot.
HTH,
Paul
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wrote:

i did notice some old insulation on the exterior walls..this is 50 years old.. should i remove that and install new one? i imagine so . thanks
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wrote:

Yeah, pull it out, it will be about R2 or less.
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On 3/17/2011 7:55 PM, EXT wrote:

That, and this is in the category of 'as long as you have it open anyway', may as well get the chance to inspect the studs and sheathing from the back side, looking for any signs of water intrusion, mold, termites, etc. For the 6-8 feet of wall, the cost of the insulation is trivial. I'd insulate all the walls around the tub and shower (and under them) just to reduce cold butt syndrome if nothing else. Shower or tub water heats up the exposed surface pretty quickly, and if wall is insulated it stays a lot warmer against your bare butt as you move about.
You mentioned shower is against outside wall? Make sure the outside wall isn't the one with pipes in it, and if your design isn't locked in, try to back the wet wall up against a closet or something where you can put an access hatch for the plumbing. Same for the tub faucet.
--
aem sends...

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What outside temps do you get???
http://community.webtv.net/awoodbutcher/MyWoodWorkingPage
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