Roland:
For the purposes of clarifying 13, 2002, 11.2.3.1.8 (4.b) would Micro lambs
or LVL's (Composite solid wood joist) be classified as "Solid Wood Joist" or
do they contain too much Glue and Resin? These are typically 1-3/4" x 9 or
11-7/8" or 14" up to 24" The objection to "Composite wood Joist" seems to be
the thin web. These composite joist don't have a web. Should we treat them
the same as normal solid wood joist? Has the committee discussed these?
Thom McMahon
Firetech, Inc.
2560 Copper Ridge Dr
Steamboat Springs, CO 80488-2136
Tel: 970-879-7952
Fax: 970-879-7926
----- Original Message -----
From: "Roland Huggins" <[EMAIL PROTECTED]>
To: <[email protected]>
Sent: Thursday, March 29, 2007 12:42 PM
Subject: Re: Gyp Board to Bottom of TJI
I am assuming that the channels open to the adjacent concealed space that
is protected - right? So we are dealing with unprotected channels over
the 800 sf area. Since the objective of the 3,000 sf RA is to account for
fire breaking out of a unprotected concealed space in more than one
location, the surrounding protected space should enter the fray right
away. The problem is running down a channel between heads with a lot of
energy from the unprotected area. A water curtain around the area would
reduce the concern somewhat. What say yea AHJ's?
Why not fill the channels with insulation? If the gyp is not DIRECTLY
attached to the bottom chord (no C-channel between chord and gyp), then
you have to have at least 3-1/2 inches of insulation anyways.
Roland
On Mar 29, 2007, at 9:27 AM, Travis Mack wrote:
I have a project that is a small bank. In the center of the bank, there
is
a raised area (20' ceiling; the rest is 9' ceilings). In this raised
area,
there is gyp board directly to the bottom of TJI construction. The rest
of
the building has a dropped ceiling so there will be heads in the
concealed
space. This raised area is slightly less than 800 sq ft. Do I need to
calculate a full 3000 sq ft in this project for the raised area?
T-Mack
Examine yourselves to see if your faith is genuine. Test yourselves.
Surely
you know that Jesus Christ is among you; if not, you have failed the
test of
genuine faith. 2 Corinthians 13:5 NLT
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