What to do with my walls

[kulapp]

Hey guys I'm building a room for music slash man cave for myself. What i have so far is a slab i just pored 14' x 16' . Been going through the site and reading a lot of good stuff here. Was thinking of doing 6" staggered walls RC and 2 layers of 5/8 drywall. Outside will be T1-11 siding which is like plywood. Height will be a A frame ceiling about 12' in center ridge . Its this or double 2x4 walls. Like to keep inside specs as big as posable. I record everything straight to the box so I'm not that loud. Maybe a small jazz drum set or go V Drums.

Will run a mini split and a air in and outlet no windows. Separate brakers for lights, amps, computers and what not.
Any thoughts on this project would be great and appreciated.

Thanks
Markku

[Gregwor]

Welcome!

If you're not recording loud instruments, clips + hat channel would be great. Don't use just RC as your isolation will suffer.

Regular vs RSIC + Hat Installation.jpg

Will run a mini split and a air in and outlet no windows.

If you want to maintain your isolation, you'll need to consider insertion loss as well. That means building silencer boxes. There are many examples of this on the forum.

I suggest downloading SketchUp (don't use the free online browswer version because it sucks)

https://help.sketchup.com/en/downloading-older-versions

Watch a few videos on it and completely draw up your building in as much detail as you can. That way you can post pictures here for us to review. Check out things like:
- making components
- inference locking
- using layers

Between those three things you will have a clean and functional Sketchup!

If you'd like, I can move this thread over to the design forum. Just let me know if you'd like me to do that for you.

Greg

[kulapp]

I've decided to go with a double 2x4 wall isolated room. for some extra sticks of wood I think it will be worth it in the end.

[kulapp]

Just a few updates.
Almost done framing the first outer layer of the room. Just need a few more blocking and ruff in the door. Would it be better to use Rockwool for the outer layer of insulation or just use the pink stuff. Will need to upload pics.
I am building one wall butting up to the house. So the outside is stuccoed, so if I drywall that wall up is that considered a third leaf and bad?

[Gregwor]

Would it be better to use Rockwool for the outer layer of insulation or just use the pink stuff.

To properly dampen the resonant frequency between your inner and outer leaf, you need to target low frequencies. This would mean the cheaper route of fiberglass insulation. But you need the correct density of insulation. In my area R24 was the closest density and the cheapest route. Rockwool would work but it's much more expensive. Others suggest using any old insulation, but it doesn't make sense to me to use insulation that won't dampen the resonant frequency well.

I am building one wall butting up to the house. So the outside is stuccoed, so if I drywall that wall up is that considered a third leaf and bad?

I'd have to see a diagram to fully picture it, but from what you're describing, I think you may have created a three leaf system which is indeed bad. This is why we always encourage people to draw up their plans in maximum detail using SketchUp so that problems like this don't happen.

Greg

[kulapp]

Getting closer. Seeing what to do with one of my walls. It’s butting up against the house so there’s drywall then stucco. Should it be a inside out wall? If I drywall it, it becomes a third leaf.

[Gregwor]

Without seeing a SketchUp file, I don't think we can answer your question.

Greg