Home | Community | Message Board

World Seed Supply
Please support our sponsors.

Community >> The Smoke Lounge

Welcome to the Growery Message Board! You are experiencing a small sample of what the site has to offer. Please login or register to post messages and view our exclusive members-only content. You'll gain access to additional forums, file attachments, board customizations, encrypted private messages, and much more!

Jump to first unread post. Pages: 1

Registered: 09/26/08
Posts: 434
sound absorbency: are NRCs all you need?
    #313127 - 11/09/09 03:39 PM (8 years, 7 months ago)

In researching how to make a cheap, efficient sound baffle for my exhaust system, I came across the NRC rating of sound absorbency. It seems to be an OK indicator of how much sound will be absorbed, but not the only factor involved. I wanted to discuss with anyone knowledgeable/interested the merits (if any) of using commercial (expensive) "soundproofing" materials instead of a (cheaper) 4" layer of fiberglass insulation. All I can think of are the following:

-commercial products are thinner than 4", saving space
-fiberglass sucks to work with

However, from my (limited) research, >4" fiberglass insulation can have a higher NRC rating (.9) than many commercial products (.6-.8).

It feels like I'm missing something here. Why would anyone pay more for inferior soundproofing products over cheap insulation? Is it just the thickness factor, or is there some reflective factor that's important in recording, etc?

(I don't think this belongs in any of the cultivation forums, since I'd like to discuss the physics of sound absorbency specifically, not cab design.)

Post Extras: Print Post  Remind Me! Notify Moderator
Truthfully, I'm a bullshitter
Male User Gallery

Registered: 04/22/08
Posts: 13,834
Loc: Greenbow, Alabama
Re: sound absorbency: are NRCs all you need? [Re: God]
    #313129 - 11/09/09 03:41 PM (8 years, 7 months ago)

wrong forum i do believe


Post Extras: Print Post  Remind Me! Notify Moderator

Registered: 09/26/08
Posts: 434
Re: sound absorbency: are NRCs all you need? [Re: FarBeyondDriven]
    #313159 - 11/09/09 05:13 PM (8 years, 7 months ago)

Yeah, I couldn't find the physics forum :wink:

Post Extras: Print Post  Remind Me! Notify Moderator
Jump to top. Pages: 1

Community >> The Smoke Lounge

Similar ThreadsPosterViewsRepliesLast post
* End product
( 1 2 all )
highasfuck 4,541 25 01/12/09 11:04 PM
by highasfuck
* Production of Tetrahydrocannabinol by Transgenic Cultured Cells Alan Rockefeller 1,498 9 12/14/08 10:21 PM
by Coaster
* Aquaponics
( 1 2 3 all )
SpaceMonkey 17,475 49 08/05/14 11:50 PM
by Hawksresurrection
* DIY Bee Line/ Ital Hemp Lighter - a low cost organic ignition source
( 1 2 all )
TheNewGuy 27,755 27 08/22/11 11:49 PM
by Dr. Siekadellyk
* An Unorthodox Yet Probable Method to Ingest Vaporized Buds TrueHerbCrystal 2,571 16 02/16/09 12:46 AM
by TripityDooDaDay
* Time to rail some adderal and get this project finished. highasfuck 2,052 18 06/09/08 12:13 AM
by Sativus
* Coca Cultivation SmOakland 3,481 11 09/15/09 09:20 PM
by meatcakeman
* If you could have any superpower what would it be?
( 1 2 3 all )
highasfuck 4,911 42 12/10/08 12:26 PM
by MistaUNGA

Extra information
You cannot start new topics / You cannot reply to topics
HTML is disabled / BBCode is enabled
Moderator: FurrowedBrow, Harry_Ba11sach, Magash, Data, Stoneth, Dr. Siekadellyk
725 topic views. 4 members, 127 guests and 287 web crawlers are browsing this forum.
[ Toggle Favorite | Print Topic | Stats ]
Search this thread:

Please support our sponsors.

Copyright 1997-2018 Mind Media. Some rights reserved.

Generated in 0.021 seconds spending 0.004 seconds on 16 queries.