best insulation for walls in grow room

Yep. Double stud wall = king. Resilient channel is a liability.

Rrog said:

Yep. Double stud wall = king. Resilient channel is a liability.

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Yeah, very few commercial jobs have I seen RC, let alone installed it. It's usually installed on shared walls in condos.
Are you a framer by any chance bro?

Not a framer... but I'm in the biz, let's just say.

RC is easily short-circuited, and involved in lots of lawsuits due to poor performance.

Rrog said:

Not a framer... but I'm in the biz, let's just say.

RC is easily short-circuited, and involved in lots of lawsuits due to poor performance.

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I wasn't aware there were lots of law suits. Interesting.

Ya. like 30% of the professional acoustical consultants in north america list their service of testifying in court cases involving RC.

Using isolation clips and channel is much better

Double stud walls is the best. Only drywall on the outer surfaces, no drywall right in between the studs.

Rrog said:

Ya. like 30% of the professional acoustical consultants in north america list their service of testifying in court cases involving RC.

Using isolation clips and channel is much better

Double stud walls is the best. Only drywall on the outer surfaces, no drywall right in between the studs.

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Well.....Fuck RC than! Lol

I've done some interesting things for sound. Probably the craziest is/was these rubber isolation deals in our hanger wires, in a suspended ceiling. I had to frame it so when shitrocked, the ceiling would "sag" into straightness. Crazy. That was in a theater. We had some rubber deals anchored onto concrete block walls, that we than fastened our studs onto, furring the wall out. Now, that was sound proof! Lol
Good times

^^^ There's good science there, man. ^^^ The rubber isolators allow the ceiling to oscillate slightly. Like a spring. Brings a lot of isolation.

The RC is trying to do the same thing, but it's a shitty spring. It mostly just sags.

mustangStudFarm, post: 11561592, member: 426145"]Are you using fiberglass to fill the gap in between the studs? It sounds like you are using the flat insulation board right?
I just framed a room and used R-13 batt insulation between the studs, I couldnt be happier!

http://www.lowes.com/pd_91109-1722-EFK001_1z0uicu 1z0uk7s 1z13xri__?productId=3047231&Ns=p_product_qty_sales_dollar|1&pl=1&currentURL=?Ns=p_product_qty_sales_dollar|1&page=1&facetInfo=Faced|Johns Manville

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I am building a room inside my garage. So basically and room inside a room. I want the best insulation so the heat during summer time doesnt effect the temp of the inside of the room. I have a garage fan that will be set to extract the hot air inside the garage as I will be running a passive system and exhausting in to the garage.

Aeroknow said:

See my post above.
Chase wall and resilient channel. It's usually how we do it
Reduce contact from one side of wall to the other.
Afterall, sound is transmitted through vibration.

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HOW DID THE POST CHANGE TO SOUNDPROOFING COME ON GUYS HELP ME OUT CAN I USE THE CHEAP STUFF OR ROCKWOOL FOR INSULATING GROW ROOM

Don’t use resilient channel. It’s garbage. For soundproofing, look at a double wall. That way you can hang heavy stuff on the wall

standard r-13 fiberglass insulation

red seal carpenter here, i have a couple questions. is the building your framing the grow room in already insulated? ill assume it is. theres many ways to skin a cat however this is my personal opinion on how i would do it. in this case you would be framing a room inside of the existing building. should picture it like a building envelope inside of a building envelope. in this case id recommend recommend 2x4 walls with r-12 fibre glass batt insulation with 9mil poly dont forget to put accoustic sealant around the edges of your vapour barrier. i know that closed cell insulation is a better seal but those frothpak kits i find there a pain in the ass to use and the mask you would need to wear is made by 3m with organic vapour cartridges p100 which i imagine there is a shortage of due to the corona virus. id say say use the mold resistant greenboard/blueboard for drywall just incase you have humidity issues inside the grow room will help prevent mold if the humidity gets too high because the plants will expire water if your dehumidifier is undersized. should get a mini split a/c for the inside of your sealed room for climate control. theres information on the net for calculating the amount of btu based on the size of the room and the number of lights you have. alternatively you could use air cooled hoods and pull air from outside of your sealed room and exhaust outside of the building to save money on the a/c. anywho just my two cents goodluck with the build

Closed cell products are not better. Open fiber insulation, uncompressed works much better

for sound isolation use 5/8” drywall x 2 layers

ops post didnt say anything about sound proofing i didnt read the whole thread. and i beg to differ the object of a sealed environment is that it is “sealed” not sound proof. however i suggested fibreglass batts not spray foam but you wouldnt know that because you likely stopped reading the second you saw the word spray foam. and sound proofing his room likely wont matter since its a room inside an existing building if the garage is insulated you wont hear anything outside the garage regardless of rooms type of insulation

That’s not true. Foam will conduct vibration and make things distinctly worse. If you don’t care about soundproofing then use the foam. If soundproofing is a goal, use fiberglass batt

Not difficult unless you try to make it difficult. use R-13 or R-19 standard fiberglass insulation and be done with it....

Only r13 in a 2x4 wall, though

R13 in the walls and reflective foamboad over it. Tape all the seams

Don’t put the foam in the cavity if you want soundproofing. Foam doesn’t help with soundproofing. It will also compress the fiberglass, which reduces your soundproofing

Are you trying to DIY this job? You did ask for the best, and closed cell spf would be it. If you can answer 3 questions yes then go with it.

Is the room permanent? Do you have the money to pay for the job to get done right? Is there enough outlets, wire size, power, etc to allow for upgrades? Once its sprayfoamed your not going to want to go back into the walls for much.

I used closed cell spf on my shed grow room and I can 100% say the shed is not allowing much noise out. I hear nothing unless someone literally screams in the room.

... seal the deal up with foam- that’s fine

Again and very clearly- foam is the worst material you can put in a wall/ ceiling / floor for soundproofing. That’s all I’m saying. Fiberglass is what is used for that

you want a foam seal rather than drywall seal? Foam it, I guess.