FIRE STOPPING @ FLOOR CEILING ASSEMBLY PITMAN & WARDLEY
3 ( Ittnrh S t i t:I - Sit lcm. MA 978.744.9OX2
Construction Control Memorandum
October 3,2018
Tom St.Pierre
Inspectional Services Director
City of Salem Inspectional Services
Salem,Massachusetts 01970
Project: RCG 120 Washington Street
Re: Fire stopping at floor ceiling assembly
Dear Tom,
The following observations are based on a site visit by Michel Beheshti,on Oct 3,2018.
Observation:
The one-hour soffits have been provided to maintain one-hour rating at plumbing pipes below already
constructed one-hour ceiling/floor assembly.This work will maintain the fire stopping membrane system.
See attached photo for typical penetrations inspected by a third-party inspection.
Please find the attached copy of UL#L501.
Please do not hesitate to be in touch with this office should you have any further questions and or concerns.
Respectfully,
Peter F.Pitman,Architect
Massachusetts Registration No. 8749
EDAgc
F.P
Flo.97492
BOSTON
MA
This USG System Detail must not be used
without a complete evaluation by owner's design
professional to verify the suitability of its use with
Construction Solution Details: Floor Ceiling Assembly your specific application.
1138"
System Performance
1 HR Fire
UL Design No. L501
��� �` c STC 38 and IIC 32 Sound
CK-6412-7
System Description
Dimensional Lumber
- 1-1/4" nominal wood floor
- 2x10 joists 16" o.c.
- 5/8" SHEETROCK Brand FIRECODE Core Gypsum Panels
- joints finished
USG Corporation Drawn by: T.R. Date: 05.17.04
550 West Adams Street Approved: R.G. Date: 06.04.04
Chicago,IL 60661-3676 Revision: M.C. Change:
Architectural and Technical Solutions Scale: Not To Scale Project:
800-8744968 File: 093600037
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