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Old 07-01-2012, 10:39 PM   #1
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Should we insulate empty walls NOW?

Redoing a bathroom in this 1959 stucco house, we found zero insulation in the walls. Guess in those days they figured it was so warm in L.A. it wasn't necessary!

Should we, before painting, open holes top and bottom and blow in insulation? It would need to be something we could do ourselves as there's no time to get bids and all before the worker goes on a trip.

And similarly we are not going to rip down all the drywall...well, it wasn't in the scope of work. Wonder if I could talk him into it.
- If so, fiberglass batting?
What should we do if I can convince him to redo all the drywall?

Yes, the bathroom is cold in the winter and warm in the summer, even with HVAC running.
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Old 07-01-2012, 11:16 PM   #2
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Insulating will help stabilize the temps so if that is your goal, go for it.

Whether to dense pack or put in batts depends on your demolition of the interior walls.
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Old 07-03-2012, 12:52 PM   #3
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If you insulate your home to a reasonable level, you will save on heating and cooling all year round, every year - and you will enjoy living there.
When you come to sell, you have an attractive home to sell.
Keep in mind that more than 12.5% of your home is in indirect contact with the air inside and outside, conduction plays a big part in the summer heat coming in.
Pull off the drywall, fix at least three inch thick sheets of Styrofoam over the frame, then replace the drywall. Do this on the inside of the outside walls and your ceilings. Treat the floors but lay oriented strand board, fully floating, over the Styrofoam.
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Old 07-03-2012, 06:58 PM   #4
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Most 50's homes in LA have no insulation. When you re-do a bathroom, especially in an older home, it's always a good idea to take off the drywall, assess what you have for plumbing, electrical, etc., and fix any issues you find. Drywall for a bathroom is not all that much, and you will know that everything behind the walls is updated and fixed if needed.

Then of course, you can insulate as you like.
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