Go Back   DIY Chatroom Home Improvement Forum > Home Improvement > Building & Construction

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

Reply
 
Thread Tools Search this Thread Display Modes
Old 05-02-2010, 08:30 PM   #1
Newbie
 
Join Date: May 2010
Posts: 2
Rewards Points: 10
Default

Attaching Duct Enclosure to Engineered Joists


Hello, I am new to the forum, have done a few searches for "engineered joists", found some excellent topics, but not what I need now.

I am finishing the basement in the 3-year old house I just bought. I would like to attach the duct enclosure, made of a 2x4 frame and drywall, to the Engineered Floor Joists, which are on 16" centers. I have never had the Engineered Floor Joists (wood I-beams?), have read quite a bit about them, and want to make sure I don't degrade or damage them.

Is it OK to use 3 coarse drywall screws to fasten the enclosure top 2x4s to the engineered I-beams? The screws would penetrate the engineered I-beam bottom flange about 1-. (I suspect that it may not be OK, but I cant come up with another easy way, so I thought I would ask.)

In the sketch below, the webs of the engineered joists actually are quite a bit thinner than depicted.

Thank you for your time and help!
Nando




Nando1 is offline   Reply With Quote
Old 05-02-2010, 09:48 PM   #2
Member
 
Join Date: Jan 2009
Posts: 68
Rewards Points: 75
Default

Attaching Duct Enclosure to Engineered Joists


we always screw and nail to the bottom of these floor joists. I can't see that a few screws would downgrade the joists in any way. The inspectors have never said anything about nails or screws into them so I wouldn't worry about it. These floors are usually over engineered in the first place.

the carpenter is offline   Reply With Quote
Old 05-03-2010, 05:11 PM   #3
Newbie
 
Join Date: May 2010
Posts: 2
Rewards Points: 10
Default

Attaching Duct Enclosure to Engineered Joists


Carpenter,
Evidently, you are correct.

I received an email from the EWP Products Enginering Manager at Louisiana-Pacific, and he included eight (.pdf) pages of instructions for hanging methods from the I-Joists. The instructions are intended for hanging sprinkler systems, but it certainly gives the overall idea.

Sure enough, two of the methods consist of driving screws into the lower flange, as you suggested would be OK.

Thanks!

Nando
Nando1 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
removing block between joists for 6" heat duct? brick1930 Building & Construction 2 08-21-2009 09:08 PM
Engineered Joists & holes for HVAC ducts walt1122 Building & Construction 3 07-04-2009 07:37 PM
Garage storage, attaching to engineered beams jdcook72 General DIY Discussions 6 06-16-2009 11:01 PM
Attaching Flex duct to register boot avshockey HVAC 15 12-03-2008 08:07 PM
attaching joists to ledger for pergola question soupdizzle Building & Construction 1 07-02-2008 10:32 PM




Top of Page | View New Posts

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