| Author |
Message |
Anonymous
| | Posted on Tuesday, April 15, 2008 - 03:27 pm: |    |
How do you address waterproofing penetrations to be protected by firestop systems in the specifications. Masterspec calls: "For piping penetrations for plumbing and wet-pipe sprinkler systems, provide moisture-resistant through-penetration firestop systems." But who warrants that the system installed will be moisture resistant? How do you specify this? |
Phil Kabza
Senior Member
Username: phil_kabza
Post Number: 310
Registered: 12-2002
| | Posted on Thursday, April 17, 2008 - 08:16 pm: | |
Presealed Systems www.presealedsystems.com offers floor penetration protection devices that are UL-rated as penetration firestopping devices ("F" and "T"-rated) and also are "W" rated for resistance to passage of water, per UL 1479.
I believe the term moisture-resistant is used instead of waterproof, as waterproof implies resistance to hydrostatic head, which the device may or may not provide. |
Michael J. King, FCSI, CCS
Senior Member
Username: mking
Post Number: 14
Registered: 08-2004
| | Posted on Tuesday, April 22, 2008 - 12:10 pm: | |
Dear Anonymous: Can you point me to where you found this reference in MASTERSPEC? I cannot find it. |
Anonymous
| | Posted on Tuesday, April 22, 2008 - 12:31 pm: | |
Michael, latest version of Section 07841, Masterspec 11/02 edition, page 3-1.3C1 - as follows: "For piping penetrations for plumbing and wet-pipe sprinkler systems, provide moisture-resistant through-penetration firestop systems." |
Anonymous
| | Posted on Wednesday, April 23, 2008 - 08:16 am: | |
11/07 is the "latest" and does not include that sentence. |
Anonymous
| | Posted on Wednesday, April 23, 2008 - 08:57 am: | |
REVELation - Masterspec does not update MF95 in the same manner as MF04 - I think I want my money back - no seriously for us who still use MF95 why is it that the same section for Firestopping in MF04 was updated in 11/07 while in MF04 it was last updated in 11/02??? 2nd Anonymous thanks for the great catch...damn. |
Anonymous
| | Posted on Wednesday, April 23, 2008 - 09:04 am: | |
Masterspec 95 and 04 are identical on my system. You must have had a glitch on your installation. Try installing the 95 version again. |
Ronald L. Geren, AIA, CSI, CCS, CCCA, SCIP
Senior Member
Username: specman
Post Number: 641
Registered: 03-2003
| | Posted on Wednesday, April 23, 2008 - 10:09 am: | |
ARCOM revises both MF95 and MF04 versions of MasterSpec sections at the same time.
As a matter of fact, the text of each is identical except for section numbers and titles. |
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