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I've never incurred an insulation inspection...

Where are you....are you in Cali with Title 24.

(I guess your electrical/plumbing/mecanical has allready been completed.)

I'd just honestly ask your building official as to what code you need to comply.....
 

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Where I am that is an acceptable method for walls. That said, there are several other requirements for insulating depending on the type of tub/shower unit you are installing.
 

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I am required to have the insulation inspected as part of my bathroom remodel. I have no idea what the inspector will look for. Any pros on here that can tell me if this looks ok?

(Sorry for the flipped image)

Yes, need to know where you are. Where I live, that wouldn't pass. You need a 4 mil poly air/vapor barrier and r-19 insulation minimum, though they might cut you a little slack in a remodel situation.
 

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Discussion Starter · #7 ·
I've never incurred an insulation inspection...

Where are you....are you in Cali with Title 24.

(I guess your electrical/plumbing/mecanical has allready been completed.)

I'd just honestly ask your building official as to what code you need to comply.....
No just this small town in Ohio. I am hoping he just wants to see that its there. I may send him a pic just so he doesn’t waste a visit. Yes, plumbing and electrical inspections are done. Insulation is the last step.
 

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Discussion Starter · #8 ·
Thanks all - the inspector specifically does not want the plastic barrier. He said R13 is all I need in 2x4 wall. I will be waterproofing the tub/shower walls.

I am in north central ohio.
 

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Glad it passed. I was an inspector in NY and I would have passed it.
 
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Thanks all - the inspector specifically does not want the plastic barrier. He said R13 is all I need in 2x4 wall. I will be waterproofing the tub/shower walls.

I am in north central ohio.


Did he say why he didn’t want the plastic barrier. I figured that would be beneficial.
 

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This may be way too late, but I will weigh in on the issue. I am a licensed home inspector in FL and also construct/install custom showers. First and foremost you must comply with the authority having jurisdiction.

Now, the generalities:
1 - The paper backing on the insulation IS a/the vapor barrier, that is why it is to be installed towards the conditioned space.
2 - If you are truly "waterproofing" (i.e. Kerdiboard, epdm's like Redguard, Hydroban, Aquadefense) your shower walls you do/should not need a vapor barrier behind your substrate.
》BTW backer boards are not waterproof, they remain stable when/after wet.
3 - IF you are not "waterproofing" your shower walls I would recommend installing the 4 mil sheathing (as previously suggested), or 40# felt instead of paper-backed insulation, though, still having insulation on your exterior wall.

Sent from my SM-G955U using Tapatalk
 

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The energy code in NY has 2 options. One is the prescriptive method where the code spells out what to put in walls, ceilings, etc. Almost no one uses that method. Most use the performance method, where values for windows, walls, ceilings, HVAC efficiency, etc. are entered into a computer program and it passes or fails. That works well because it allows trade offs. Want more glass then bump up walls or ceilings or use more efficient equipment. It is interesting changing values to see what works that is easiest and/or cheapest.
 
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