Go Back   DIY Chatroom Home Improvement Forum > Home Improvement > HVAC

CLICK HERE AND JOIN OUR COMMUNITY TODAY...IT'S FREE!

Reply
 
Thread Tools Search this Thread Display Modes
Old 09-09-2007, 07:43 PM   #1
Newbie
 
Join Date: Sep 2007
Posts: 1
Rewards Points: 0
Share |
Default

isolating noise transmission in metal duct work


I'm about to install a drop ceiling in my basement and use the space as an audio recording studio. The weak link for noise reduction is the HVAC metal ductwork. While in the master bedroom on our 2nd story, I can clearly hear someone whispering from the basement. The only conduit for this quiet of noise source is the ductwork. Should I replace the metal ducts with fiberglass ductboard? Are there any effective "wraps" for this purpose? what are my cost effective solutions? Also, I would like to keep my ceiling as high as possible.

Best Regards,
Brandon Hook
Sr. Acoustics Engineer
Peiker Acustic, Inc.
2870 Technology Dr
Rochester Hills, MI 48309

BrandonHook is offline   Reply With Quote
Old 12-06-2008, 07:56 PM   #2
Newbie
 
Join Date: Apr 2007
Posts: 16
Rewards Points: 0
Wink

isolating noise transmission in metal duct work


I Use metal duct , but use 1" interior ductliner glued and pinned inside the duct. R6 flexduct for supply take offs and carefully interior line the outlets. Using a little extra flex between the trunkline andthe takeoffs, and making smoe nice soft bends, anything you cando to remove "line of sight" sound transmission and reflected sound transmission. would do .
But short of redesigning the system feeding the studio, thats real all you can do, however that sould be sufficient.

jmosh is offline   Reply With Quote
Old 12-07-2008, 06:37 AM   #3
Journeyman
 
Join Date: Nov 2008
Location: North of Detroit
Posts: 42
Rewards Points: 0
Default

isolating noise transmission in metal duct work


Remember that if you line the inside of the duct you will lose 2" on the h&w so it will need to be larger. Can you post pics of the area in question(duct suppy and return)might just need to take care of the supplys and returns that feed that area since the main trunk will be in the drop ceiling.
pipefitter636 is offline   Reply With Quote
Reply


Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
Modifying existing duct work Thurgee HVAC 3 04-05-2007 09:35 AM
Connect metal duct to flex? tigerbalm2424 HVAC 3 03-12-2007 02:30 PM
Tape for duct work? Willie5566 HVAC 4 01-16-2007 04:02 PM




Top of Page | View New Posts

Copyright © 2003-2014 Escalate Media. All Rights Reserved.