Attachment 1 - PRD B290 Roof Drawings.pdf

PDF 2 MB Posted Sep 14, 2026

Attached to: PRD B290 Roof
Solicitation number: 12441926Q0048
Issued by: Department of Agriculture Forest Service

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Written by GovTribe AI · Sep 14, 2026

This document is a set of construction design drawings and specifications for a roofing project at the Pine Ridge Job Corps Civilian Conservation Center in Dawes County, Nebraska.

The project involves replacing the roof system on Building B290 (Welding Shop/Building Crafts), a 5,845 GSF interior structure with approximately 7,800 SF of horizontal roof area to be recovered. The work is managed by the United States Department of Agriculture Forest Service, Rocky Mountain Region. The basis of design specifies a Durolast Metal Retrofit system with mechanically fastened PVC membrane and insulation, featuring a 20-year no-dollar-limit, 15-year consequential plus 5-year material and labor manufacturer warranty. The roof system includes 60-mil Duro-Tuff PVC membrane, two layers of 1.5-inch polyisocyanurate Duro-Guard ISO II-H insulation (3-inch total thickness), polyisocyanurate flute filler, and aluminum gutters and downspouts. The work requires removal and disposal of existing gutters and downspouts, preparation of the existing metal roof substrate, extension or replacement of roof curbs for ventilation fans and penetrations to provide minimum 8-inch clearance above the new roof, extension of plumbing vents to 24 inches above the new roof, and extension of gas-burning appliance vents to 24 inches above the new roof with maintained clearances to combustibles. The project site is located at 15710 Highway 385, Chadron, Nebraska 69337, at an elevation of 4,000 feet with a basic wind speed of 111 MPH (Exposure Category C), ground snow load of 40 PSF, and occupancy classification of Factory/Industrial.

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Other files

File	Type	Posted
PRD Wldg Roof Questions - Answers.pdf	PDF	Oct 13, 2026
SIGN-IN SHEET.pdf	PDF	Oct 5, 2026
12441926Q0048.pdf	PDF	Sep 14, 2026
Attachment 3 - PRD B290 Roof SOI.xlsx	XLSX spreadsheet	Sep 14, 2026
Attachment 4 - Sustainable Products.pdf	PDF	Sep 14, 2026
Attachment 5 - Wage Determination Rates.pdf	PDF	Sep 14, 2026
Attachment 2 - PRD B290 Roof Specs.pdf	PDF	Sep 14, 2026

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JOB CORPS

NATIONAL OFFICE

B290 ROOFING

PINE RIDGE JOB CORPS

CIVILIAN CONSERVATION

CENTER

DAWES COUNTY, NEBRASKA

05/2026 7

UNITED STATES

DEPARTMENT OF AGRICULTURE

FOREST SERVICE

DATENO. REVISION / ISSUE

TITLE SHEET

A. GARRISON, PE

D. VALLES, PE

T 1.0

1. T1.0 TITLE SHEET GENERAL

2. G1.0 CAMPUS MAP GENERAL

3. A0.1 EXISTING CONDITIONS B290-WELDING

4. A0.2 PHOTOS B290-WELDING

5. A1.0 WELDING ROOF PLAN B290- WELDING

6. A1.1 WIND PRESSURE B290-WELDING

7. A1.2 DETAIILS B290-WELDING

INDEX

SHEET SHEET

SUB

TITLE OF SHEET

PROJECT ADDRESS

15710 HIGHWAY 385,

CHADRON, NE 69337

NO SCALE-COPYRIGHT GOOGLE

PROJECT LOCATION

BUILDING

UNITED STATES DEPARTMENT OF AGRICULTURE

FOREST SERVICE

B290 ROOFING

NEBRASKA NATIONAL FOREST

PINE RIDGE JOB CORPS CENTER

DAWES COUNTY,

NEBRASKA

ROCKY MOUNTAIN REGION

U.S. LOCATION MAP

PROJECT

LOCATION

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DATE

100 111

523 201

RTE 385

529 528

GATE

WASTEWATER

TREATMENT

LAGOON

KING CANYON RD

JOB CORPS

NATIONAL OFFICE

B290 ROOFING

PINE RIDGE JOB CORPS

CIVILIAN CONSERVATION

CENTER

DAWES COUNTY, NEBRASKA

05/2026 7

UNITED STATES

DEPARTMENT OF AGRICULTURE

FOREST SERVICE

DATENO. REVISION / ISSUE

CAMPUS MAP

A. GARRISON, PE

D. VALLES, PE

G1.0

A G1.0

CAMPUS MAP

NO SCALE

SOLID HATCH DENOTES

BUILDINGS INCLUDED IN

CONTRACT

Existing Site Plan

Chadron, Nebraska Pine Ridge Civilian Conservation Center

BUILDINGS

100 - ADMINISTRATION

101 - GATEHOUSE

111 - HEALTH SERVICES

121 - DINING HALL

131 - WAREHOUSE/WAREHOUSING

MATERIAL HANDLER

201 - FLAMMABLE STORAGE

220 - MAINTENANCE STORAGE

225 - CTT OFFICE

230 - MAINTENANCE/PAINTING

240 - HEALTH OCCUPATIONS TRAINING

250 - BRICK MASONRY/CARPENTRY

270 - CEMENT MASONRY SHOP

290 - WELDING SHOP/BUILDING CRAFTS

295 - VST STORAGE

511 - DORMITORY II & III

514 - DORMITORY I

515 - HONOR DORM (MALE)

516 - HONOR DORM (FEMALE)

523 - GYMNASIUM/EDUCATION

524 - ACTIVITY CENTER

530 - DORMITORY IV

534 - PUMP HOUSE

540 - LAUNDRY BUILDING

STRUCTURES

102 - SIGNHOUSE/FIRE CACHE

202 - GAS HOUSE

205 - FIRE CACHE

229 - PAINTING STRUCTURE

231 - VEHICLE STORAGE

271 - CEMENT MASONRY STORAGE

272 - CEMENT MASONRY STORAGE

517 - STUDENT GATHERING SHELTER

518 - GENERATOR BUILDING

520 - STUDENT SMOKE SHELTER

526 - GAZEBO

527 - BALL FIELD BOOTH

528 - RIGHT FIELD DUGOUT

529 - LEFT FIELD DUGOUT

532 - GENERATOR STORAGE

533 - WATER TOWER

535 - WIND TURBINE

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JOB CORPS

NATIONAL OFFICE

B290 ROOFING

PINE RIDGE JOB CORPS

CIVILIAN CONSERVATION

CENTER

DAWES COUNTY, NEBRASKA

05/2026 7

UNITED STATES

DEPARTMENT OF AGRICULTURE

FOREST SERVICE

DATENO. REVISION / ISSUE

EXISTING CONDITIONS

A. GARRISON, PE

D. VALLES, PE

A0.1

A A0.1

B290 WELDING EXISTING CONDITIONS

SELECTIVE DEMO AND METAL RE-COVER NOTES

HATCHED AREA: REMOVE AND DISPOSE OF EXISTING GUTTERS AND DOWNSPOUTS. PREPARE AREA FOR

INSULATED PVC OVER-ROOF (METAL RETROFIT). PREPARATION FOR OVER-ROOFING INCLUDES:

A. EXISTING ROOF FRAMING, METAL ROOF PROFILE, AND CONSTRUCTION VARIES - CONTRACTOR

SHALL THOROUGHLY INVESTIGATE EXISTING CONDITIONS AND INCORPORATE VARYING

CONSTRUCTION INTO SHOP DRAWINGS AND MANUFACTURER CALCULATIONS.

B. PERFORM FASTENER PULLOUT TESTS.

C. MAKE CORRECTIVE ACTIONS AS REQUIRED TO ENSURE EXISTING METAL ROOF IS CLEAN, SMOOTH, AND FREE OF SHARP EDGES AND LOOSE FOREIGN MATERIAL,SECURE ANY BENT/UPLIFTED ROOF

PANELS OR FASTENERS TO PREPARE FOR OVER-ROOFING.

D. REMOVE ANY TRIMS AND RIDGE CAPS THAT WILL NOT BE USED FOR NEW ROOF SYSTEM.

D.A. PROVIDE TEMPORARY WEATHER PROTECTION AS REQUIRED UNTIL NEW ROOF SYSTEM IS

INSTALLED OR ONLY DEMO AREAS THAT WILL BE RE-ROOFED IN THE SAME DAY.

E. REMOVE ROOFTOP FANS AND PROTECT FOR REINSTALLATION AFTER INSTALLATION OF NEW CURBS

OR EXTENSIONS TO PROVIDE CLEARANCE ABOVE NEW ROOFING SYSTEM.

F. EXTEND OR PROVIDE NEW ROOF CURBS FOR VENTILATION FANS, AND OTHER PENETRATIONS TO

PROVIDE A MINIMUM OF 8" CLEARANCE ABOVE NEW ROOF SYSTEM, INCLUDE ANY REQUIRED

EXTENSION OF ELECTRICAL BRANCH CIRCUIT, DUCTS, AND SIMILAR COORDINATION WORK.

G. EXTEND PLUMBING VENTS TO MINIMUM OF 24" ABOVE NEW ROOF SYSTEM.

H. EXTEND GAS BURNING APPLIANCE VENTS AT LEAST 24" ABOVE NEW ROOF SYSTEM.

GENERAL NOTES

1. EXISTING INFORMATION SHOWN ON DRAWINGS HAS BEEN TAKEN FROM LIMITED FIELD

OBSERVATIONS. PHOTOS ARE INTENDED TO SHOW GENERAL EXISTING CONDITIONS AROUND

THE AREAS FOR NEW WORK. THE CONTRACTOR SHALL FIELD VERIFY EXISTING CONDITIONS

PRIOR TO BEGINNING WORK.

2. SCALES AND DIMENSIONS INDICATED ARE FOR GENERAL SCOPING ONLY, THE CONTRACTOR

SHALL FIELD VERIFY DIMENSIONS FOR COORDINATION WITH MATERIAL, EQUIPMENT, AND SHOP

DRAWING REQUIREMENTS.

8 0 8 2416

SCALE OF FEET

2:12

PH1

A0.1

PH1

A0.1

EXISTING CONDITIONS

NO SCALE

PH2

A0.1

EXISTING CONDITIONS

NO SCALE

PH2

A0.1

PH3

A0.2

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PH11

A0.2

CANOPY ROOF WILL REMAIN AS IS, GUTTER WILL BE REMOVED/REPLACED.

EXISTING OVERHEAD CABLE, INSULATE AS REQ'S

FOR WORKER SAFETY DURING CONSTRUCTION

EXTEND PVC OVER-ROOF A

MINIMUM OF 6" BEYOND

EXTERIOR WALL LINES BELOW

THEN INSTALL PVC TO

EXISTING METAL TRANSITION.

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B290 ROOFING

PINE RIDGE JOB CORPS

CIVILIAN CONSERVATION

CENTER

DAWES COUNTY, NEBRASKA

05/2026 7

UNITED STATES

DEPARTMENT OF AGRICULTURE

FOREST SERVICE

DATENO. REVISION / ISSUE

PHOTOS

A. GARRISON, PE

D. VALLES, PE

A0.2

PH3

A0.2

EXISTING CONDITIONS

NO SCALE

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A0.2

EXISTING CONDITIONS

NO SCALE

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A0.2

EXISTING CONDITIONS

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A0.2

EXISTING CONDITIONS

NO SCALE

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A0.2

EXISTING CONDITIONS

NO SCALE

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A0.2

EXISTING CONDITIONS

NO SCALE

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A0.2

EXISTING CONDITIONS

NO SCALE

PH10

A0.2

EXISTING CONDITIONS

NO SCALE

PH11

A0.2

EXISTING CONDITIONS

NO SCALE

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JOB CORPS

NATIONAL OFFICE

B290 ROOFING

PINE RIDGE JOB CORPS

CIVILIAN CONSERVATION

CENTER

DAWES COUNTY, NEBRASKA

05/2026 7

UNITED STATES

DEPARTMENT OF AGRICULTURE

FOREST SERVICE

DATENO. REVISION / ISSUE

WELDING ROOF PLAN

A. GARRISON, PE

D. VALLES, PE

A1.0

A A1.0

B290 WELDING PROPOSED ROOF PLAN

GENERAL NOTES

1. EXISTING INFORMATION SHOWN ON DRAWINGS HAS BEEN TAKEN FROM LIMITED FIELD

OBSERVATIONS. PHOTOS ARE INTENDED TO SHOW GENERAL EXISTING CONDITIONS AROUND

THE AREAS FOR NEW WORK. THE CONTRACTOR SHALL FIELD VERIFY EXISTING CONDITIONS

PRIOR TO BEGINNING WORK.

2. SCALES AND DIMENSIONS INDICATED ARE FOR GENERAL SCOPING ONLY, THE CONTRACTOR

SHALL FIELD VERIFY DIMENSIONS FOR COORDINATION WITH MATERIAL, EQUIPMENT, AND SHOP

DRAWING REQUIREMENTS.

ROOF PLAN SYMBOLS LEGEND

ROOF SYSTEM OVER SLOPED STRUCTURE

PROPOSED ROOF GUTTERS

PROPOSED GUTTER DOWNSPOUT

GUTTER AND SNOW GUARD SCHEDULE

ITEM MATERIAL

THICKNESS

(INCHES) DESCRIPTION ACCESSORIES

ROOF GUTTER ALUMINUM 0.032 4"X4" BOX STYLE GUTTERS,

COLOR AS SELECTED BY COR. HANGERS, END CAPS, OUTLETS, WEDGES.

GUTTER

DOWNSPOUTS ALUMINUM 0.032

2"X3" CORRUGATED OR PLAIN

RECTANGULAR, HEAVY DUTY,

COLOR MATCHED TO GUTTERS.

ATTACHMENTS, ELBOWS, AND EXTENSIONS FOR DOWNSPOUTS

DISCHARGING TO GRADE

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SCALE OF FEET

12 2:

2:12

EXISTING OVERHEAD CABLE, INSULATE AS REQ'S

FOR WORKER SAFETY DURING CONSTRUCTION

KEY NOTES

ROOFTOP FAN/VENTILATOR (TYPICAL), FIELD VERIFY CURB SIZE AND PROVIDE CURB EXTENSION TO PROVIDE 8" ABOVE NEW ROOF SYSTEM. EXTEND INNER DUCT, WIRE, CONDUIT, ETC AS REQUIRED TO ACCOMMODATE EXTENSION.

FIELD VERIFY QUANTITY OF FAN/VENTILATORS. CURB EXTENSIONS SHALL BE INSULATED. FLASH AND SEAL IN

ACCORDANCE WITH APPROVED SHOP DRAWINGS.

GAS-BURNING APPLIANCE VENTS (TYPICAL), FIELD VERIFY SIZE AND TYPE, EXTEND GAS-BURNING APPLIANCE VENTS TO 24" ABOVE NEW ROOF SYSTEM. MAINTAIN CLEARANCE TO COMBUSTIBLES PER VENT MANUFACTURER REQUIREMENTS. REINSTALL OR REPLACE FLASHING, STORM COLLAR, AND TERMINAL/RAIN CAP AS REQUIRED TO COMPLY WITH VENT AND ROOFING SYSTEM MANUFACTURERS' REQUIREMENTS AND APPROVED SHOP DRAWINGS.

PLUMBING VENT TYPICAL. FIELD VERIFY SIZE AND TYPE, AND EXTEND TO A MINIMUM HEIGHT OF 24" ABOVE NEW ROOF SYSTEM. FIELD VERIFY QUANTITY OF PLUMBING VENTS. FURNISH PIPE FLASHING PER ROOF SYSTEM

MANUFACTURER INSTALLATION SHOP DRAWINGS.

X-HATCHED AREA, EXISTING ROOF OVER OPEN STORAGE - NO WORK.

SOLID HATCHED ROOF AREAS: FURNISH AND INSTALL METAL RETROFIT PVC OVER-ROOF SYSTEM INCLUSIVE OF ALL REQUIRED PRODUCTS AND MATERIALS WITH A 20-YEAR NO-DOLLAR-LIMIT 15-YEAR CONSEQUENTIAL +5-YEAR

MATERIAL AND LABOR MANUFACTURER WARRANTY.

BASIS OF DESIGN SYSTEM: DUROLAST METAL RETROFIT, MECHANICALLY FASTENED PVC MEMBRANE &

INSULATION.

1. EXISTING METAL ROOF.

2. FLUTE FILL: POLYISOCYANURATE, DURO-GUARD ISO - CONTRACTOR TO VERIFY METAL ROOF PROFILE(S)

FOR FLUTE FILL REQUIRED DIMENSIONS.

3. CONTINUOUS INSULATION: POLYISOCYANURATE, DURO-GUARD ISO II-H, 2-LAYERS 1.5" EACH (3")

THICKNESS.

4. ROOF MEMBRANE: DURO-TUFF (PVC), 60-MIL.

5. ALL REQUIRED FLASHING, FASTENERS, SEALANTS, AND ACCESSORIES FOR FULLY WEATHERTIGHT ROOF

SYSTEM INSTALLATION.

6. PROVIDE MANUFACTURER INSPECTION OF ROOF IN PROGRESS OR AT COMPLETION AND ANY

MANUFACTURER REQUIRED CORRECTIONS FOR SPECIFIED WARRANTY.

REPLACE GUTTER AND DOWNSPOUTS ALL AREAS INDICATED. FIT TIGHT TO WALLS USING ELBOWS AND SUPPORTS.

DIRECT FLOW AWAY FROM BUILDING, OMIT EXTENSIONS WHERE GUTTER TERMINATE INTO PAVED DRIVEWAYS OR PARKING AREAS. FIELD LOCATE COMPONENTS TO AVOID BLOCKING WALKS, DOORS, WINDOWS, ELECTRICAL

DEVICES, AND SIMILAR EXISTING CONSTRUCTION REQUIRING ACCESS OR WORKING SPACES.

EXTEND PVC OVER-ROOF A

MINIMUM OF 6" BEYOND

EXTERIOR WALL LINES BELOW

THEN INSTALL PVC TO

EXISTING METAL TRANSITION.

CANOPY ROOF - NO WORK, REPLACE GUTTER

BUILDING INFORMATION AND ENVIRONMENTAL LOADS

1. OCCUPANCY CLASS: FACTORY/INDUSTRIAL

2. SITE ELEVATION: 4,000'.

3. SIZE: 5,845 GSF INTERIOR, APPROX:7,800 SF HORIZONTAL ROOF AREA TO BE

RECOVERED (EXCLUDES ENTRANCE CANOPY AND COVERED EXTERIOR

STORAGE).

4. YEAR CONSTRUCTED: 1967

5. FLOORS: 1

6. CONSTRUCTION TYPE: 2

7. IBC RISK CATEGORY: II (2)

8. ROOF ASSEMBLY FIRE RATING: A, B, OR C (BASIS OF DESIGN SYSTEM IS

CLASS C)

9. BASIC WIND SPEED: 111 MPH

9.1. EXPOSURE CATEGORY: C

10. GROUND SNOW LOAD: 40 PSF, ~20" DEPTH.

11. ICE: 0.35 INCH

12. RAIN:

12.1. 15 MINUTE INTENSITY: 6.4 INCH/HOUR

EXTEND DOWNSPOUTS IN

THESE LOCATIONS BEYOND

ALCOVE/EQUIPMENT AREAS

UNTIL FREE SURFACE

DRAINAGE IS ACHIEVED.

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B290 ROOFING

PINE RIDGE JOB CORPS

CIVILIAN CONSERVATION

CENTER

DAWES COUNTY, NEBRASKA

05/2026 7

UNITED STATES

DEPARTMENT OF AGRICULTURE

FOREST SERVICE

DATENO. REVISION / ISSUE

WIND PRESSURE

A. GARRISON, PE

D. VALLES, PE

A1.1

A A1.1

B290 WELDING DESIGN WIND PRESSURE

WIND LOADS: COMPONENTS AND CLADDING PRESSURE ZONES

1. WIND LOADS WERE CALCULATED IN ACCORDANCE WITH ASCE 7-22 CHAPTERS 26-30 AND

ARE PROVIDED FOR GENERAL SCOPING ONLY.

2. ADJOINING AREAS NOT BEING MODIFIED WERE NOT CALCULATED.

3. CONTRACTOR SHALL PERFORM FASTENER PULLOUT TESTING IN ACCORDANCE WITH

MANUFACTURER'S REQUIREMENTS.

4. CONTRACTOR SHALL VERIFY BUILDING INFORMATION AND PROVIDE ROOFING SYSTEM

MANUFACTURER WIND PRESSURE CALCULATIONS AND COORDINATE REQUIRED

FASTENERS AND FASTENER SPACING WITH MANUFACTURER'S CALCULATIONS AND

PULLOUT TESTING.

8 0 8 2416

SCALE OF FEET

CANOPY ROOF AND GUTTER - NO

WORK (NOT CALCULATED)

EXISTING METAL OVER OPEN

STORAGE ARE (NO WORK, NOT

CALCULATED)

3 3

WIND PRESSURE BY ZONE, PASD

(PSF)

ZONE # PULT (PSF) PASD (PSF)

1 -43.7 -26.2 2 -57.8 -34.7 3 -75.8 -45.5

6' 10' 11'

5.5' 5'

BUILDING INFORMATION AND ENVIRONMENTAL LOADS

1. OCCUPANCY CLASS: FACTORY/INDUSTRIAL

2. SITE ELEVATION: 4,000'.

3. SIZE: 5,845 GSF INTERIOR, APPROX:7,800 SF HORIZONTAL ROOF AREA TO BE

RECOVERED (EXCLUDES ENTRANCE CANOPY AND COVERED EXTERIOR

STORAGE).

4. YEAR CONSTRUCTED: 1967

5. FLOORS: 1

6. CONSTRUCTION TYPE: 2

7. IBC RISK CATEGORY: II (2)

8. ROOF ASSEMBLY FIRE RATING: A, B, OR C (BASIS OF DESIGN SYSTEM IS

CLASS C)

9. BASIC WIND SPEED: 111 MPH

9.1. EXPOSURE CATEGORY: C

10. GROUND SNOW LOAD: 40 PSF, 20" DEPTH.

11. ICE: 0.35 INCH

12. RAIN:

12.1. 15 MINUTE INTENSITY: 6.4 INCH/HOUR

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NOTE 1: PLACE THE APPROPRIATELY SIZED GALVANIZED BASE OVER THE PIPE IN THE

ROOF DECK, PER APPLICABLE CODES.

NOTE 2: FASTEN THE BASE TO THE DECK USING FOUR APPROVED FASTENERS, 1-1/2 IN. (38

MM) FROM EACH OUTSIDE CORNER AND PENETRATING AT LEAST 1 IN. (25 MM) INTO

THE DECK.

NOTE 3: APPLY CAULK BETWEEN THE BASE AND FLASHING WITHIN 1 IN. (25 MM) OF THE

TOP OF THE FLASHING.

NOTE 4: PLACE THE HOOD ASSEMBLY OVER THE FLASHING AND BASE. SECURE WITH A

MINIMUM OF TWO APPROVED FASTENERS DIRECTLY THROUGH THE CAULK LINE. THE

SCREWS MUST PENETRATE THE BASE BY A MINIMUM OF 1/2 IN. (13 MM).

NOTE 5: ALL FIELD WELDS MUST BE A MINIMUM OF 1-1/2 IN. (40 MM) WIDE.

NOTE 6: 3" POLYISOCYANURATE.

FIELD WELD

(NOTE 5)

APPROVED

INSULATION, (NOTE 6)

APPROVED FASTENERS

(NOTE 2)

DURO-LAST®

MEMBRANES

HOOD ASSEMBLY

(NOTE 4)

BASE (NOTE

Pipe

MEMBRANE FLASHING

APPROVED CAULK

(NOTE 3)

APPROVED CAULK

ENVELOPED TERMINATION

BAR AND APPROVED

FASTENERS SPACED 6 INCHES

ON CENTER THROUGH METAL

ROOF

APPROVED

SEALANT

PVC

MEMBRANES

EXISTING METAL ROOF, VERIFY EXISTING PROFILE

FIELD WELD

(NOTE 2)

NOTE 3

2 INCHES, MIN.

APPROVED FLUTE

FILLER (NOTE 3)

24 GAUGE METAL

COUNTER-FLASHING

(FASTEN TO HOLD

IN PLACE)

URETHANE FOAM (2 INCHES, MIN.)

POSITIVE WATER FLOW

4 INCHES, MIN.

Note 1: THE MINIMUM SLOPE REQUIREMENT FOR THIS DETAIL IS 1 INCH PER 12 INCHES.

Note 2: ALL FIELD WELDS SHALL BE A MINIMUM OF 1-1/2 INCHES WIDE.

Note 3: REFER TO A/A1.2 FOR INSULATION REQUIREMENT, VERIFY WITH MANUFACTURER

IF WOOD NAILERS ARE REQUIRED IN THIS LOCATION FOR WIND UPLIFT.

EXISTING EXTERIOR WALL LINE,

CONTRACTOR VERIFY AND

EXTEND TRANSITION BEYOND

JOB CORPS

NATIONAL OFFICE

B290 ROOFING

PINE RIDGE JOB CORPS

CIVILIAN CONSERVATION

CENTER

DAWES COUNTY, NEBRASKA

05/2026 7

UNITED STATES

DEPARTMENT OF AGRICULTURE

FOREST SERVICE

DATENO. REVISION / ISSUE

DETAILS

A. GARRISON, PE

D. VALLES, PE

A1.2

DUROLAST DURO-TUFF PVC, 60-MIL.

APPROVED CAULK

TERMINATION BAR W/ APPROVED

FASTENERS 6" O.C.

APPROVED CAULK

24 GAUGE C-CHANNEL CAP

MECHANICALLY FASTENED

THROUGH TOP OF NAILER W/

APPROVED FASTENERS 6" O.C.

3" POLYISOCYANURATE

INSULATION W/ INTEGRALLY

LAMINATED, FIBER-REINFORCED

FACER (DURO-GUARD ISO II-H)

DRIP OR APRON FLASHING

BOX GUTTER

GUTTER BRACKETS @24" O.C.WITH

APPROVED FASTENERS

2 EACH, 2"X4" NAILERS, SECURE TO METAL ROOFING AND/OR PURLINS,

FASTENER SPACING PER PULL OUT TEST VALUES TO PROVIDE A

MINIMUM LOAD RESISTANCE OF 180 POUNDS PER LINEAL FEET (PLF)

POLYISOCYANURATE FLUTE INSULATION, FIELD FIT TO METAL ROOF

PANEL PROFILE(S), FLUTE INSULATION PROFILE SHALL BE SELECTED TO

COMPLY WITH INSULATION LAYER SPAN RATING..

EXISTING METAL ROOF PANELS MAY VARY, FIELD VERIFY PROFILES.

A A1.2

EDGE TERMINATION, GUTTER ATTACHMENT, AND BASIS OF DESIGN ROOF ASSEMBLY

NO SCALE

DETAIL NOTES

1. TYPICAL DETAILS ARE INCLUDED TO REFLECT

DESIGN INTENT AND ARE SUBJECT TO

COMPLIANCE WITH MANUFACTURERS

INSTALLATION INSTRUCTIONS AND FIELD

VERIFICATION OF EXISTING CONDITIONS.

CONTRACTOR SHALL PROVIDE SHOP DRAWINGS

FOR PROPOSED MODIFICATION TO TYPICAL

DETAILS AS REQUIRED TO COORDINATE WITH

FIELD VERIFIED CONDITIONS AND INSTALLATION

INSTRUCTIONS.

EXISTING FAN CURB (OR REPLACE WITH NEW

TALLER CURB) - SIZE VARIES - FIELD VERIFY.

INSULATED CURB EXTENSION.

FAN BASE, CONNECT TO NEW CURB OR

EXTENSION AND COORDINATE EXTENSION OF

OTHER RELATED ITEMS AS REQUIRED FOR

PROPER OPERATION SUCH AS DUCTS AND

ELECTRICAL WIRING AND REINSTALL FAN.

GASKET OR SEALANT BETWEEN EXISTING CURB

AND EXTENSION.

FASTEN EXTENSION TO CURB PER EXTENSION

MANUFACTURER'S INSTRUCTIONS.

EXISTING METAL ROOF

FLUTE AND CONTINUOUS (3")

POLYISOCYANURATE INSULATION

60-MIL PVC MEMBRANE

FIELD WELD

APPROVED FASTENER

CUSTOM-FABRICATED CURB FLASHING

TERMINATION BAR W/ APPROVED FASTENERS @ 6" O.C.

APPROVED CAULK

B A1.2

RECTANGULAR PENETRATION (TYPICAL)

NO SCALE

8" MIN.

C A1.2

GAS APPLIANCE VENT DETAIL

NO SCALE

24"

D A1.2

NEW ROOF TO EXISTING METAL TRANSITION DETAIL

NO SCALE

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Sheets and Views

PRD B290 Roof Drawings-1.0 Cover

PRD B290 Roof Drawings-G1.0

PRD B290 Roof Drawings-A0.1

PRD B290 Roof Drawings-A0.2

PRD B290 Roof Drawings-A1.0

PRD B290 Roof Drawings-A1.1

PRD B290 Roof Drawings-A1.2

File details come from the government source that posted it. Updated Sep 14, 2026.