21-040-LAC_Replace-Roofs-Phase1_Final-Drawings_34.pdf
PDF 438 KB Posted
- Attached to
- FPCM-LAC-I001104-M035-RS
- Solicitation number
- 0000036277
- Issued by
- Los Angeles County, California
About this file
This document is a mechanical/plumbing roof demolition plan for the California State Prison, Los Angeles County (LAC), located in Lancaster, California. The project involves a roof replacement phase (Phase 1) for Buildings 346 and 347, which are 270 housing unit buildings. The plan, prepared by Turley Mechanical Engineering & Associates Group and Hibser Yamauchi Architects, is dated August 31, 2023, and includes detailed demolition notes for existing equipment and roof elements. The drawings have been approved by the Office of the State Fire Marshal on 10/10/23 with a final approval date of 11/20/2023.
The roof replacement project includes comprehensive removal and potential replacement of various existing roof components, including air handling units (AHUs), air conditioning units, exhaust fans, water heaters, roof vents, scuppers, and associated piping and mechanical systems. Notable details include instructions for temporarily removing and protecting existing equipment, verifying equipment specifications, and preparing for new roof installation. The plan highlights that no as-built drawings were available, and the contractor must field verify unit information. The project appears to be part of a larger facility maintenance and improvement initiative for the California Department of Corrections and Rehabilitation's facility planning and construction division.
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Text version
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(E)EF-1(E)EF-2 (E)EF-3 (E)EF-4
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Project Engineer:
U R L E YT M E C H A N IC A L
E N G I N E E R I N G
G R O U P, I N C.& ASSOCIATES
(916) 325-1065
FAX: (916) 325-1075
Email: office@turleymech.com
2431 Capitol Avenue
Sacramento, CA 95816
Project Manager:
GYang
Job Number:
Project Drafter: Login:
Plot Date: Aug 25, 2023 - 4:07pm
22107-PH1JT
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SHEET NUMBER
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DEMOLITION NOTES
GENERAL NOTES
D07 (E) EXHAUST FAN TO BE REMOVED FROM THE EXISTING CURB AND PROTECTED
TO ALLOW FOR THE REROOF. INSPECT EXISTING BACKDRAFT DAMPER AND
LUBRICATE AND CLEAN DAMPER. LABEL FAN (STENCIL PAINT 2" HIGH LETTERS)
BEFORE REMOVAL. LABEL WITH CORRESPONDING NUMBERS LISTED ON PLANS.
PHOTO SEE
D11 (E) SCUPPER CONDUCTOR HEAD, TR, PHOTO SEE
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MP801
1. WHERE PIPE SIZES ARE DIFFERENT THAN SHOWN, MATCH (E)SIZES TO
MAINTAIN THE SAME PIPE SIZE AS EXISTING CONDITIONS.
2. FIELD VERIFY EXACT HEIGHT OF EACH (E) CURB. IF TOP (E)CURB IS EQUAL
TO OR MORE THAN 8" ABOVE NEW FINISHED ROOF TOP, (E)UNIT ON THE
CURD CAN BE REMAIN IN PLACE AND PROTECTED DURING
CONSTRUCTION. INSTALL (N)FLASHING ON (E)CURB AFTER REROOFING.
D08 (E) ROOF VENT PIPE PENETRATION TO REMAIN. REMOVE/REPLACE
(E)FLASHING, EXTEND VENT THRU ROOF DUE TO NEW INSULATION HEIGHT.
TOTAL 30 VENT ON ROOF WITHIN CONSTRUCTION AREA. PHOTO SEE
D10 (E) 12X6 SCUPPER OPENING FOR LOW ROOF, TR, PHOTO SEE
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G
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D04 (E) SCUPPER OPENING FROM HIGH ROOM TO LOW ROOF, TBR, PHOTO SEE
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D05 (E) AHU OR AC UNIT ON CURB TO BE TEMPORARILY REMOVED AND PROTECTED
TO ALLOW FOR THE REROOF. DISCONNECT ALL CONTROLS, PIPING, DRAINS,
AND DUCTING FOR REMOVAL. COORDINATE WITH CDCR REPRESENTATIVE FOR
CRANE IS REQUIRED TO MOVE UNIT. UNIT IS TO BE SET ON GROUND TO ALLOW
FOR NEW CURB ADAPTOR TO BE ADDED. LABEL UNIT (STENCIL PAINT 2" HIGH
LETTERS) BEFORE REMOVAL. LABEL WITH CORRESPONDING NUMBER ON PLAN.
SEE OR
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D
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D19
N
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(E) WATER HEATER TO BE REMOVED FROM THE EXISTING CURB AND
PROTECTED TO ALLOW FOR THE REROOF. DISCONNECT ALL CONTROLS AND
PIPING PIPING, AND DRAIN TO EMPTY THE TANK FOR REMOVAL. LABEL UNIT
(STENCIL PAINT 2" HIGH LETTERS) BEFORE REMOVAL. LABEL WITH
CORRESPONDING NUMBER ON PLAN. SEE
D22 (E) DUCT THRU ROOF, TO BE TEMPORARY DISCONNECTED. FIELD MEASURE
DUCT SIZE. PHOTO SEE
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(E)36X24 DUCT ON ROOF, TO REMAIN. DISCONNECT AND TEMPORARILY
REMOVE DURING RE-ROOFING, PROTECT IN PLACE. DUCT WILL BE
REQUIRED TO BE ON NEW SUPPORT. REPLACE WITH (N) DUCT AT SAME SIZE
IF NECESSARY. SIZE TO BE FIELD VERIFIED AND RECORD, PHOTO SEE
D20
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D05A SAME AS , SEED05
D01 (E) ROOF DRAIN AND OVERFLOW DRAIN, TBR, PHOTO SEE
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(E) G, CW, HW, HWR UTR, TEMPORARY DISCONNECT DURING
CONSTRUCTION. PHOTO SEE
D21
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D13 (E) CONDENSATE DRAIN PIPING ON ROOF, TEMPORARY REMOVED DURING
CONSTRUCTION. REMOVE ALL PIPING SUPPORT. PHOTO SEE
I
MP801
D14 (E) CONDENSATE DRAIN PIPING (D)THRU ROOF, TR. PHOTO SEE
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D15 (E) INDUSTRIAL COLD WATER PIPING ON ROOF, TEMPORARY REMOVED DURING
CONSTRUCTION. REMOVE ALL PIPING SUPPORT. PHOTO SEE
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D16 (E) INDUSTRIAL COLD WATER PIPING (D)THRU ROOF, TR. PHOTO SEE
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D17 (E) MEDIUM PRESSURE NATURAL GAS PIPING ON ROOF, TEMPORARY REMOVED
DURING CONSTRUCTION. REMOVE ALL PIPING SUPPORT. PHOTO SEE
M
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D16A (E) INDUSTRIAL COLD WATER PIPING PENETRATE INTO CURB, TEMPORARY
DISCONNECTED AND TO BE RE-ROUTED. PHOTO SEE
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D18 (E) NATURAL GAS PIPING CONNECT TO AC OR AHU W/ PRESSURE REGULATOR.
TEMPORARY DISCONNECT DURING CONSTRUCTION. PHOTO SEE
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BUILDING 347BUILDING 346
(E)AHU-1 THRU 3 EXISTING HANDLING UNIT, "ENERGY LAB" UNIT W/
"REZNOR" NATURAL GAS FURNACE AND EVAP COOLER,
MODEL# AND DETAILED INFORMATION UNKNOWN.
(E)AC-1 EXISTING AIR CONDITIONING UNIT ON HIGH ROOF,
ROOF TOP UNIT W/ NATURAL GAS FURNACE,
MANUFACTURE, MODEL# AND DETAILED INFORMATION
UNKNOWN.
(E)AC-2 EXISTING AIR CONDITIONING UNIT ON LOW ROOF ROOF
TOP UNIT MANUFACTURE, MODEL# AND DETAILED
INFORMATION UNKNOWN.
(E)EF-1 THRU 33 EXISTING EXHAUST FAN, UNIT MODEL# AND DETAILED
INFORMATION UNKNOWN.
(E)WH-1 EXISTING WATER HEATER ON HIGH ROOF.
"TURBOPOWER" LOW NOX CATEGORY I FAN-ASSISTED
STORAGE WATER HEATER, 500 LHE 250A-TPL, 250
GALLON, 399,000 BTU/HR NATURAL GAS INPUT,
4.5"-10.5" W.C. GAS INLET PRESSURE, 120V/1PH/60 HZ,
5AMPS.
NOTES:
1. NO AS-BUILT DRAWING FOR THE BUILDINGS. NAMEPLATE FOR MOST
UNITS CANNOT BE FOUND OR NOT READABLE. CONTRACTOR SHALL
FIELD VERIFY ACTUAL UNIT INFORMATION FOR EACH BUILDING.
2. MANY AHU'S WERE FOUND TO BE LEAKING. THEY MUST BE REPAIRED
PRIOR TO REROOFING.
EXISTING EQUIPMENT SCHEDULE
V1
OFFICE OF THE STATE FIRE MARSHAL
shall be available on the project site at all times.
10/10/23
APPROVED FIRE AND PANIC ONLY
Approval of this plan does not authorize or approve any omission or deviation from applicable regulations. Final approval is subject to field inspection. One set of approved plans
23-0002
11/20/2023 CASp-491 #1317
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