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 01-15-2013, 01:23 AM   #1
Member
 
Join Date: Nov 2012
Location: Toledo, OH
Posts: 205
Rewards Points: 0
Share |
Exclamation

Duct Board Bad?


So I got some Knauf Duct Board at a very good price. However, once I got it home it seems very...fibrous. I run my hand calmly over the fiberglass portion and it feels like i'm scraping off very small particles. Is this normal?

It has the intent of being used as a return plenum so air flow shouldn't be TOO aggressive right?

Is there some kind of guard that I could place over it to prevent that from entering the rest of the house if it is indeed a problem or perhaps a special air filter?

In the picture does this mean that the board was made November 16th 2000?

Does the duct board look in good condition from the pics?

Thanks.
Attached Thumbnails
Duct Board Bad?-100_3417.jpg   Duct Board Bad?-100_3419.jpg  

Mijotter is offline   Reply With Quote
Old 01-15-2013, 04:55 PM   #2
Member
 
Join Date: Nov 2012
Location: Toledo, OH
Posts: 205
Rewards Points: 0
Default

Duct Board Bad?


Anyone? Would like to start working with it if asap.

Mijotter is offline   Reply With Quote
Old 01-15-2013, 07:07 PM   #3
Member
 
Join Date: Dec 2010
Location: Colton, SD
Posts: 47
Rewards Points: 0
Default

Duct Board Bad?


That is manufacture date. I would never use duct board for any reason. I have taken it out on demo after 3 years and it just falls apart, not to mention it holds spores.

If you are going to use it run at least a merv 11 or better filter.
shoothebunnies is offline   Reply With Quote
Old 01-15-2013, 07:16 PM   #4
I'm Your Huckleberry
 
Join Date: Mar 2011
Posts: 5,766
Rewards Points: 24
Default

Duct Board Bad?


The trick is building the return plenum properly as well as sealing it to the furnace but in layman's terms yes, that duct board is design specific for the task at hand and yes, if you rub it it''ll come off as you described regardless if brand new made last week or if made ten years ago.
__________________
Thanks.
Doc Holliday is online now   Reply With Quote
Old 01-15-2013, 07:45 PM   #5
Member
 
Join Date: Nov 2012
Location: Toledo, OH
Posts: 205
Rewards Points: 0
Default

Duct Board Bad?


Thank you. Yeah I know but it is what it is. I was wondering however if the lining that is used in Flex Duct, that thin black lining, is available to wrap the duct board in or another similar product or would Lining the fiberglass part with Thermopan be just fine...
Mijotter is offline   Reply With Quote
Old 01-15-2013, 08:26 PM   #6
Roofmaster
 
Join Date: Oct 2012
Location: Maryland
Posts: 3,621
Rewards Points: 22
Default

Duct Board Bad?


There are many people that say fiberglass is the next asbestos. While that may seem a little harsh, You could not pay me enough to use that stuff in lieu of Galvanized steel, especially if it is sloughing off. You could stick it to the outside of your ducts if you want but I would never run air through it.

__________________
" A lot of men build things, and a lot of things fall down "

jagans is offline   Reply With Quote
Reply

Tags
duct, duct board, plenum, return, supply


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
Duct Board Supply Plenum hoboat HVAC 0 09-25-2012 02:13 PM
?an Insulated Flexible Duct - half attached and half unattached ? tran Roofing/Siding 2 06-21-2012 06:25 PM
Help with return air duct gasbie HVAC 4 06-20-2011 06:54 PM
My Duct Sealing Project Cakemeister HVAC 6 06-13-2011 11:45 AM
Planning on New duct work..any feedback... kilosos2 HVAC 28 01-26-2011 09:21 AM




Top of Page | View New Posts

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