Substantial posts by merpmerp, who started the thread, and by the forum’s most active contributors. 44 of 60 posts are listed.
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merpmerp, 19 January 2019OK, here goes nothing! First off, it should be in my profile, but just in case, I'm in Emmaus, PA. I had a townhouse built and asked the builder to frame out a room for…
merpmerp, 19 January 2019Merpmerp again. I forgot to add, those ducts going up the wall near the neighbors side have a lot of gaps between the duct and the wall they are going through. I know…
Soundman2020, 20 January 2019Hi "merpmerp". Welcome! :) First things first: How much isolation do you need, in decibels? In other words: get an SPL meter, play your kit hard and fast in that room,…
merpmerp, 20 January 2019Thank you Stuart, and thanks for the quick reply! You will see that I did that below with my neighbor. It really doesn't matter outside. I am on an end unit on a corner.…
merpmerp, 20 January 2019Image not preserved: Foundation.jpg Stuart, I have attached a couple of pictures. I wanted to show the foundation so you see the cement for both townhomes and the little…
Gregwor, 20 January 2019Exactly. One drywall screw going too deep near the framing and it's game over. For the level of isolation you need, there's no way you're going to achieve it without…
merpmerp, 21 January 2019Greg, Thanks for the information. Don't worry, you're not the bad guy! It's not a matter of money, it's convincing the wife. Also, I have to look at as will it be…
Gregwor, 21 January 2019The ceiling joists are quite expensive as you probably can't just use dimensional 2x6's from your local hardware store (maybe you can -- you have to ask a structural…
merpmerp, 22 January 2019Greg, Thanks for all of the information. I am going to have my contractor take a look at everything as I'm sure he understands a lot more the items you're referring to.…
Gregwor, 22 January 2019I would highly recommend you study as much you can and ask us as many questions as it takes to fully understand the concepts. I've personally dealt with lots of…
merpmerp, 22 January 2019OK, I will do that. I'm assuming this would be from inside the new room as there would be no room to do it from the outside. Is that correct? How does the insulation…
Gregwor, 23 January 2019:thu: You could tie it to the back side of the inside out wall as you stand it up. You could use lag bolts with fender washers to hold it up. Maybe some one else has…
merpmerp, 23 January 2019I'm sure my contractor will know. I say contractor because that is what I see on here, but he pretty much does everything and is very knowledgeable. He is a friend as…
Gregwor, 23 January 2019The things he pointed out are common construction details. If he knew anything about building studios he would have talked about the mass of the door, the through-hole…
merpmerp, 23 January 2019How am I doing that? We didn't get too into it, this was right after I moved in and just started having some work done. He has never done it before and knows I am…
merpmerp, 23 January 2019Greg, Right now we're only worried about the acoustics with the low volume cymbals as well as the electronic set pad noise, correct? I don't think we're talking about…
Gregwor, 24 January 2019If you read pretty much any threads on this forum, they are inside out builds. So hopefully you can find enough pictures to clarify any questions you may have. It…
merpmerp, 24 January 2019OK Greg, You've given me plenty of information. I just have one last question because I'm not sure if the last answer was addressing the ceiling or the walls. Regarding…
Gregwor, 25 January 2019This all depends on if you are doing a fully decoupled room in a room build or a iso clips and hat construction. You have to decide and tell us exactly how much…
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Gregwor, 25 January 2019You can use rectangular blocks for dimensional lumber type joists or for my I joists, I made custom cleats. Image not preserved: image1.jpeg Image not preserved:…
merpmerp, 29 January 2019Thanks for the pictures, that helps a lot. Am I putting green glue between the drywall and the subfloor? If I planned on using two sheets of drywall between the joists…
Gregwor, 30 January 2019Yes. Put it on the drywall before you lift the drywall up against the subfloor. g I'm pretty sure GG says there is a slight improvement if you put GG on each layer, but…
merpmerp, 4 February 2019Does it matter if the drywall that is going between the joists is touching the joists? Also, my contractor had a question, and I told him you guys said contractors will…
Gregwor, 5 February 2019The whole idea of using Green Glue Compound for beefing up your subfloor is to have the drywall sort of "float" on the compound. That is why we hold up the drywall with…
merpmerp, 12 February 2019OK, it looks like I'm going to be an electronic drummer for a while, at least at home. We came home with all the wood to do the room within the room framing but wife did…
Gregwor, 12 February 2019She does know you can remove one door if you want to sell the place, right? Isolation doesn't come cheap. How does you physically going down and lifting/screwing them…
merpmerp, 12 February 2019I didn't mention that, but I know the response would be something in effect to being able to see the second set of walls. Plus, the soffit where it is, is going to make…
merpmerp, 14 February 2019Well, I think I got good news on my end. I left my wife know my neighbor, who also lives in a town house (obviously) thinks it would be a good selling point to have a…
Gregwor, 15 February 2019All I read was "I left my wife" and I thought to myself, "Damn dude, you really want your jam room, hey!??" Good work. I cut thousands of those! Remember to caulk the…
merpmerp, 15 February 2019LOL! I hope that wasn't subliminal, I meant to say "let"! I was referring to the inner walls. You had mentioned doing them inside out at one time. From what I understand…
Gregwor, 15 February 2019Without a diagram, I don't fully understand your description. Basically, for your walls, on your foundation side, it would be concrete (which is mass #1), then your…
merpmerp, 21 February 2019Image not preserved: Room in a room question.jpg I'm not sure if you can tell from the above, but on the left is what is in the Gervais book. The inner wall with…
Soundman2020, 21 February 2019Depending on how you build them, either could be better! Or worse. What matters mostly is the mass on each leaf, and the depth of the air cavity, as well as the…
merpmerp, 11 March 2019Hey, just wanted to give an update on this. So, basically we just did the ceiling and the soffit for now. It sounds like it was just a little bit, but it took two weeks…
merpmerp, 12 March 2019I understand the first part, the baffles too long, but I'm not sure about the cross sectional part. Is that the area where the baffles end? If we cut down the baffles…
Gregwor, 13 March 2019You can figure out your cross sectional area by multiplying the width by the height in your silencer box air path. Remember, you're going to lose 1" due to duct liner…
merpmerp, 20 March 2019So, it the duct feeding it is 6", that area above the baffle needs to be 12"? Is there a ratio, baffle to cross sectional area that I should be trying to achieve? We…
Soundman2020, 20 March 2019Careful with that! A 6" duct refers to the diameter of the duct: You need to use the cross sectional AREA of the duct, not the diameter, radius, or circumference. The…
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merpmerp, 25 September 2019Hello, it's been a while but I'm ready to get back to working on the room. So far the ceiling it done and I need to start on the walls. There is one cement wall, the…
merpmerp, 3 October 2019I'm still a little confused on the area. The length doesn't factor? OK, the width x height minus the baffles, or just width x height? Also, would this work for the…
merpmerp, 17 October 2019I'm really hoping someone can answer because I am at a standstill right now. OK, the interior of my box is 16" wide x 10" high. If I add 1" all around, I guess that…
Gregwor, 1 November 2019Sorry to leave you hanging man. I've been swamped and unable to visit the forum everyday. Without Stuart here helping answer questions, it's pretty tough to get to…
merpmerp, 31 January 2020Greg, Thank you, for that information. I had to take a break for a couple months due to some issues, but I want to get back to this. I don't think I gave you the correct…
merpmerp, 21 September 2021Just wanted to give an update here as well as thank Stuart and Greg for all of their help. The room is done! It might not be 100% (I'll get to that) but it works for…