2412-02_Northeast_HS_Roof_A5.2_Addendum_4_06.03.25.pdf
PDF 446 KB Posted
- Attached to
- Reroof Buildings 3, 6, 19 and 28
- Solicitation number
- 25-CR-054
- Issued by
- Pinellas County, Florida
About this file
The document is a detailed architectural roofing detail sheet (Sheet A5.2) for the Northeast High School Roof Replacement Project in St. Petersburg, Florida, prepared by Williamson Dacar Associates, Inc. The sheet provides comprehensive technical drawings for roof system components, including roof vents, reglet flashing details, scupper details, roof drain configurations, parapet system layouts, and roof hatch installations. The drawings specify precise construction methods for replacing roofing systems on Buildings 3, 6, 19, and 28, with detailed specifications for materials such as aluminum flashings, lightweight concrete, insulation boards, modified bitumen roofing, and specific installation techniques for various roof elements.
The technical details demonstrate a comprehensive approach to roof replacement, featuring specific instructions for installation of relief vents, drainage systems, wall interfaces, and roofing membranes. Key specifications include using Marathon Roofing Products' LC Vent model, installing 2" lightweight concrete, incorporating new insulation boards, and maintaining existing structural elements where possible. The drawings provide precise measurements, material specifications, and installation guidelines for each roofing component, ensuring a systematic and engineered approach to the roof replacement project. The sheet is part of a permit set dated 6/4/2025 and includes multiple revisions, with the most recent being Addendum #4 on 06/03/25, indicating an ongoing refinement of the project's technical specifications.
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Text version
APPROVED RELIEF VENT.
CONTRACTOR TO PROVIDE
SHOP DRAWINGS
CUT LIGHT WEIGHT
CONCRETE DOWN TO METAL
DECK PRIOR TO INSTALLING
VENT
SET IN FULL BED OF
ROOFING ASPHALT
CEMENT
NEW 2" LIGHT WEIGHT
CONCRETE
NEW INSULATION BOARD
EXISTING STRUCTURE
TO REMAIN (METAL
DECK)
NOTE:
RELIEF VENT TO BE USED AS NEEDED. DESIGN
BASIS: MARATHON ROOFING PRODUCTS, MODEL:
LC VENT 4" MIN. ⌀ RELIEF VENT TO BE SPUN FROM
HEAVY GAUGE ALUMINUM.
TWO PIECE WALL REGLET
FLASHING PER DETAIL 1/A5.2
NEW 1/4" SOPRABOARD
1 1/4" x 1 1/4" x 2"
MODIFIED BITUMEN
CANT MODEL
DERBICANT
EXISTING CMU OR
METAL STUD WALL
TO REMAIN
NEW TAPERED
INSULATION OR EXISTING
ROOF LWC INSULATION
TO REMAIN
EXISTING METAL
ROOF DECK TO
REMAIN
EXISTING ROOF
STRUCTURE TO
REMAIN
CONTRACTOR TO CUT STUCCO AS
REQUIRED FOR NEW FLASHING TO
BE INSTALLED. REPAIR STUCCO
AND SHEATHING AS REQUIRED
M
IN
WRAP SYSTEM BASE PLY UP
WALL MIN 4" PAST TOP OF CANT.
CAP SHEET
CAP BASE PLY(S) TO WRAP MIN 6"
PAST DERBICANT ON ROOF
CAP SHEET TO WRAP UP WALL
MIN 4" PAST SYSTEM BASE
PLY(S)
1" ASPHALT PRIMER
SYSTEM BASE PLY(S)
EXISTING WALL
STRUCUTRE
NOTE:
THIS DETAIL IS TO SHOW THE ROOF SYSTEM
APPLICATION FOR ALL PARAPET WALLS,
CURBS, EXPANSION JOINTS. TYP. ALL
PIECE OF BASE SHEET
TO EXTEND MIN 2"
FRONT FACE AND 6" TOP
OF PARAPET WALL
NEW INSULATION MIN PER
F.B.C
CAP SHEET TO WRAP MIN 12" PAST
FLASHING BASE PLY(S)
6"
6"
A5.2
9 Sim
EXTEND CAP SHEET TO FRONT
FACE OF WALL OVER SECOND
LAYER OF FLASHING BASE
FLASHING BASE PLY(S) SHEET
TO EXTEND UP PARAPET AND
UNDER COPING
PROVIDE CONT. BASE PLY SHEET
THAT EXTENDS DOWN FRONT FACE
OF PARAPET AND EXTENDS OVER
TOP OF PARAPET STOPPING AT
INSIDE FACE OF WALL.
1" SLOPE
1" ASPHALT PRIMER
FLASHING BASE PLY(S) TO EXTEND
TO EDGE OF PARAPET WALL
1 1/4" RING SHANK GALV.
STEEL ROOFING NAIL @ 6" O.C.
INTO BLOCKING
2X10 PT CONT. CUT DOWN TO WIDTH OF
WALL W/ (2) 1/4" X 3" S.S. TAPCONS @ 16"
O.C. (INTO CONCRETE). PROVIDE (2) #12
S.S.TEK SCREWS @ 16" O.C. AT
LOCATIONS OF METAL STUD FRAME
PARAPE WALL
1X PT WOOD NAILER
3/4" PT PLYWOOD
ROOFING MEMBRANE / FLASHING
TO EXTEND UP PARAPET AND
UNDER COPING (TYPICAL)
M
IN
M
IN
EXISTING STUCCO TO
REMAIN. REPAIR AS
REQUIRED
EXISTING WALL STRUCTURE
(CONCRETE TIE BEAM OR GALV.
METAL STUDS)
A
A
ALL JOINTS TO BE
CONTINUOUSLY WELDED
BEVEL PERIMETER
EDGE
B
B
BACKING PLATE
CONTINUOUS SEALANT (ALL
EDGES)
3/16" x 2 1/4" S.S. TAPCON
ANCHOR WITH NEOPRENE
WASHER ON AT EACH
CORNER TYP.
HOLD COVER
PLATE MIN 1/8"
OVER SCUPPER
WELD INSIDE
AND OUTSIDE
EDGE
ALUMINUM
BACKING PLATE
BACKING PLATE
W/ SLEEVE SECTION A-A
EXTEND INSIDE FLANGE
OF SCUPPER MIN 3" ALL
SIDES
JOINT ALL
AROUND SOLDER
PRECAST WALL
.050 ALUMINUM
FACE PLATE
FACE PLATE
SECTION B-B
SET IN FULL BED OF
SEALANT TOP AND 2 SIDES
SET IN FULL BED OF SEALANT (2) ROWS TOP
(1) MIDPOINT AND BOTTOM. SEALANT TO BE
AT TOP AND BOTH SIDES ONLY.
SEE ENLARGED
DETAIL 5/A5.4
R .O
0' - 3" 0' - 3"8" R.O. SCUPPER OPENING
0' - 2"
.050 ALUMINUM
/2 " 0
/2 " 0
/1
/2
/1
1'-2 3/4" +/-
/1
0' - 1 1/2"
0' - 0 5/16"
0' - 1 1/2"
0' - 0 5/16"
/1
/2
/4
/2
A5.2
5 Sim
.063 ALUM BACK PLATE
BEVEL PERIMETER EDGE
SET IN FULL BED OF
SEALANT (2) ROWS TOP (1)
MIDPOINT AND BOTTOM.
SEALANT TO BE AT TOP
AND BOTH SIDES ONLY.
.063 ALUMINUM
BACKING PLATE
CONTINUOUS SEALANT
(ALL EDGES)
.050 ALUMINUM
COVER PLATE
HOLD COVER PLATE MIN
1/8" OVER SCUPPER
3/16" x 2 1/4" S.S. TAPCON
ANCHOR WITH NEOPRENE
WASHER ON AT EACH
CORNER TYP.
HOLD COVER PLATE MIN
1/8" OVER SCUPPER
0' - 0 3/4"
0' - 1 1/2"
/2
/1
/2
NEW DRAIN STRAINER ASSEMBLY
MEMBRANE FIELD PLIES, METAL
FLASHING AND STRIPPING SHEET
EXTEND UNDER CLAMPING RING
NEW DECK CLAMP
EXISTING METAL
DECK TO REMAIN
NEW CLAMPING
RING AS REQUIRED
NEW TAPERED
INSULATION
CAP FLASHING
BASE FLASHING
NEW DRAIN BOWL
1/2" SLOPE 1/2" SLOPE
1/4" SLOPE 1/4" SLOPE
NEW DRAIN STRAINER OR HERCULES
RETRODRAIN ASSEMBLY
NEW CLAMPING RING AS REQUIRED
EXISTING LIGHTWEIGHT
CONCRETE TO REMAIN
(U.N.O.)
MEMBRANE FIELD PLIES,
METAL FLASHING AND
STRIPPING SHEET TO EXTEND
UNDER CLAMPING RING
EXISTING METAL
DECK TO REMAIN
BASE FLASHING
CAP FLASHING
NEW ACCESS
LADDER TO BE
INSTALLED. SEE
DETAIL
IF PLYWOOD OR
WOOD BLOCKING IS
PRESENT, REMOVE
AND INFILL EXISTING
SPACE WITH NON-
SHRINK GROUT
"BILCO" TYPE "S-50HZ",
2'-10" x 3'-4" ROOF
SCUTTLE
NEW CANT AROUND ROOF ACCESS
NEW ROOF SYSTEM, SEE SPEC.
1/4" RECOVERY BOARD (SOPRABOARD)
3/8"⌀ A-307 THRU
BOLT @ 12" O.C.
EXISTING STEEL
SUPPORTS TO REMAIN
EXISTING STEEL
JOISTS TO
REMAIN
EXISTING METAL
DECK TO REMAIN
EXISTING LIGHTWEIGHT CONCRETE TO
REMAIN OR NEW TAPERED INSULATION
TO BE INSTALLED (SEE ROOF PLANS)
EXISTING WALL TO REMAIN
0.050 ALUMINUM
RECEIVER
ATTACH RECEIVER W/ TAPCON S.S.
SCREWS 1/4" x 2 1/2" @ 1'-6" INTO
EXISTING CMU WALL OR S.S. TEK
SCREWS IN EXISTING METAL STUD WALL
REMOVABLE .050 ALUMINUM
COUNTER FLASHING ATTACHED W/
S.S. TEK SCREWS @ 24" O.C. W/
NEOPRENE WASHERS TO RECEIVER
PROVIDE 2" WIDE CLIP @ 32"
O.C. ATTACH CLIP W/ S.S.
TAPCON SCREWS 1/4" x 2
1/2" OR S.S. TEK SCREWS
(METAL STUD WALL)
THICKNESS OF
EXISTING STUCCO
(V.I.F.)
1" MIN.
4" MIN.
5 1/2" MIN.
1" MIN.
CONTRACTOR TO CUT STUCCO AS
REQUIRED FOR NEW FLASHING TO
BE INSTALLED. REPAIR STUCCO AS
REQUIRED. PROVIDE NEW "J" BEAD
AND SEALANT. HOLD "J" BEAD MIN
1/4" FROM FLASHING
.050 ALUMINUM RECEIVER
REMOVABLE .050 ALUMINUM COUNTER
FLASHING ATTACHED W/ S.S. TEK
SCREWS @ 24" O.C. W/ NEOPRENE
WASHERS TO RECEIVER
PROVIDE NEW PEEL
AND STICK OVER
RECEIVER AND
SCREWS TO SEAL AND
PROTECT FLASHING
DETAIL FROM THE NRCA ROOFING
MANUAL: ARCHITECTURAL METAL
FLASHING AND CONDENSATION AND AIR
LEAKAGE CONTROL 2018 CF-2
DRAWING TITLE:
SHEET NO.
WDA PROJ. NO:
OWNER PROJ. NO:
SCALE: REFER TO SHEET
ISSUE/REVISION OF DRAWINGS:
ARCHITECT: AA0002541
ENGINEER: EB 0006884
PHASE:
CHECKED:
DRAWN:
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ROOF DETAILS
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A5.2
2412-02
PERMIT SET
N O
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A S
T H
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F R
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WDA
WDA
1 1/2" = 1'-0"A5.2
2 ROOF VENT DETAIL
1 1/2" = 1'-0"A5.2
3 TYPICAL REGLET FLASHING DETAIL
NO. DATE DESCRIPTION
03/04/25 PH2 DD
04/01/25 PH3 100% CD
04/16/25 PH4 100% CD PERMIT
1 06/03/25 ADDENDUM #4
1 1/2" = 1'-0"A5.2
8 ROOF SYSTEM LAYOUT INFORMATION @ PARAPET
3" = 1'-0"A5.2
9 ENLARGED PARAPET DETAIL
3" = 1'-0"A5.2
4 OVERFLOW SCUPPER FACE PLATE DETAIL (BUILDING 28)
12" = 1'-0"A5.2
5 ENLARGED SCUPPER DETAIL
1 1/2" = 1'-0"A5.2
6 TYPICAL ROOF DRAIN DETAIL (TAPERED INSULATION)
1 1/2" = 1'-0"A5.2
7 TYPICAL ROOF DRAIN DETAIL (LIGHTWEIGHT CONCRETE)
1" = 1'-0"A5.2
10 TYPICAL ROOF HATCH DETAIL
1 1/2" = 1'-0"A5.2
1 TWO PEICE REGLET DETAIL
| Sheets |
| A5.2 - ROOF DETAILS |
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