Drawings_-_Roof.pdf

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U.S. Department of the Interior Design and Construction Branch Washington, D.C. 20242

202-619-6384 phone

National Capital Region TRANSMITTAL

To: Michael J. Finken

From: Graham Ruggie, Interdisciplinary PM, Architect

Date: May 8, 2019

RE: NCRO 201409 NCRO HQ renovations – Alternate #4 – Replace roofing

Comments:

The following documents are included for incorporation into an addendum to the bidding contractors and should be noted for pricing as Alternate #4:

Drawings:

A1 Building D – New Roof Plan 5/8/2019 A2 Building A/B – New Roof Plans 5/8/2019 A3 Building C – New Roof Plan 5/8/2019 A4 Roof Details 5/8/2019

Specifications:

061000 Rough Carpentry R0 (not issued yet) 072100 Thermal Insulation R1 (from Volume 1 ESPC) 075200 Sheet Membrane Roofing (TPO) R0 (not issued yet) 076200 Sheet Metal Flashing and Trim R1 (from Volume 1 ESPC) 079200 Joint Sealants R1 (from Volume 1 ESPC)

Sincere thanks, Graham Ruggie, COR Interdisciplinary PM, Architect

AA

BB

CC

D

PENTHOUSE ROOF

MAIN ROOF

BUILDING D

H.P.H.P.H.P.H.P.

H.P. H.P.

H.P.

VENT

NEW ELEV.

OVER RIDE

EF-4

CUCU

SECURE ELECTRICAL AND COOLANT LINES ALONG

CHANELS SECURED TO RUBBER PEDESTALS TO

SIDEWALL PENETRATIONS OR UTILIZE DOG HOUSE

PENETRATION DETAIL TO SPACE BELOW.

PENETRATION FOR

SATELITE EQUIPMENT

VENT PIPE

H.P.

H.P. H.P.L.P.L.P.

SATELITE ON POST

FAN

FAN

EXHAUST

GOOSENECK

DUCT

VENTS

146' - 11"

76' - 10"

TYP.

AT ALL

PARAPET

WALLS TYP.

CAP FLASHING @ T.O. BRICK WALL WITH NO

ROOFING INTEGRATION AROUND COOLING

TOWER WELL TO REMAIN IN PLACE

AT ALL

PARAPET

WALLS TYP.

BRONZE ANNODIZED

AT ALL KNEE WALLS

AND AROUND

COLUMNS, TYP.

BRONZE ANNODIZED

AT ALL WALL

FLASHING, TYP.

H.P.

1. PROVIDE FOR DEMOLITION OF THE EXISTING ROOFING SYSTEM PER

THE SPECIFICATIONS IN THE CONTRACT DOCUMENTS. WORK SHALL

INCLUDE COMPLETE REMOVAL OF SYSTEM COMPONENTS AND

THOROUGH CLEANING OF SUBSTRATE TO ASSURE A CLEAN

APPEARANCE AND ACCEPTABLE SUBSTRATE FOR THE NEW ROOFING

SYSTEM. COMPONENTS SHALL INCLUDE BUT NOT LIMITED TO

WALKING PADS, MEMBRANE, PROTECTION BOARD, INSULATION,

FASTENERS, FLASHING, & SEALANTS IN ITS ENTIRETY.

2. LOCATION OF ROOF PENERTRATIONS ARE APPROXIMATE.

CONTRACTOR TO PROVIDE COORDINATION DRAWING AND VERIFY ALL

LOCATIONS IN THE FIELD.

3. CONTRACTOR TO CONFIRM TYPES AND QUANTITIES OF

PENETRATIONS WITH MEP COORDINATION DRAWINGS.

4. DETAILS AS SHOWN ARE TYPICAL AND PROVIDED FOR REFERENCE.

CONTRACTOR TO PROVIDE A COMPLETE SET OF MANUFACTURER

PPROVED DETAILS FOR TYPICAL AND ATYPICAL CONDITIONS.

INCORPORATE ALL COMPONENTS OF A WATER TIGHT ROOFING

SYSTEM THAT SATISFIES THE DESIGN INTENT AND MANUFACTURER'S

WARRANTY.

ROOF PLAN GENERAL NOTES:

1. TAPERED INSULATION TO PROVIDE FOR SLOPE OF 1/4" = 1'-0", TYPICAL.

2. PROVIDE NEW TPO MEMBRANE ROOFING SYSTEM. SEE

SPECIFICATIONS AND DETAILS FOR SYSTEM COMPONENTS AS

REQUIRED BY MANUFACTURER.

3. PROVIDE FOR REMOVAL AND REPLACEMENT OF ALL EXISTING METAL

WALL & CAP FLASHING AND FASCIA. NEW ALUMINUM FLASHING &

FASCIA SHALL MATCH EXISTING FINISH & PROFILES WITH

ADJUSTMENTS AS REQUIRED FOR THICKNESSES OF NEW ROOFING

ASSEMBLIES. SEE RELATED DETAILS.

4. PROVIDE FOR TAPERED SUMPS AT ROOF DRAINS. NEW ROOF DRAINS

PER THE CONTRACT DOCUMENT SPECIFICATIONS.

5. PROVIDE ROOFING MEMBRANE UP AND OVER PEDESTALS AT COOLING

TOWERS.

6. REMOVE EXISTING PIPE RAIL AND FILL HOLES IN MASONRY WITH NON-

SHRINK GROUT.

7. REPLACE EXISTING (2) PENTHOUSE LADDERS WITH ALUMINUM FIXED

LADDER WITH CAGE AND WALK THRU. ANCHOR LADDER IN MASONRY

AS SPECIFIED BY MANUFACTURER WITH EPOXY. BASIS OF DESIGN IS

"PRECISION LADDERS".

8. NEW "SKID" CURBS FOR CONDENSING UNIT(S). SEE "SKID" CURB

DETAILS.

9. PROVIDE NEW "DOG HOUSE" FOR MULTIPLE PENETRATIONS.

CONDENSING AND POWER LINES TO BE CONSOLIDATED TO MINIMIZE

PENETRATIONS. SEE DETAILS.

10 PROVIDE FOR NEW GUARD RAIL PER THE CONTRACT DOCUMENTS.

RAIL SHALL EXTENT 30" BEYOND EACH SIDE OF THE HATCH.

11 REMOVE EXISTING LOOSE ANCHORS AND REPLACE WITH MASONRY

ANCHORS SET IN EPOXY AT ACCESS HATCH.

12 PROVIDE END DAM FLASHING AT (HIGHER) PARAPET WALL @

INTERSECTION WITH PENTHOUSE WALL AND CONTINUE WALL

COUNTERFLSHING FROM BELOW, UP AND OVER PARAPET CAP

FLASHING.

13 PROVIDE FOR REPLACEMENT OF EXISTING GUTTERS WITH 6" DEEP

ALUMINUM RECTANGUAR PROFILE TO MATCH EXISTING.

14 CLEAN OUT DOWNSPOUTES TO REMAIN. MAKE CONNECTION WITH

NEW GUTTERS.

15 REPLACE EXISTING SKYLIGHTS WITH NEW SELF-FLASHING,

THERMALLY BROKEN, COMMERCIAL FIXED SKYLIGHT BY "SUN-TEK OR

EQUAL. UNIT SHALL HAVE A INSULATED 12" CURB, POLYCARBONATE

DOME AND WHITE POWDER COAT FRAME. PROVIDE FOR WORK

REQUIRED TO RESIZE OPENINGS FOR STANDRARD UNIT SIZE.

16 LINE OF WALK WAY PADS

ROOF PLAN KEY NOTES:

1. THE PROPOSED ALTERNATIVE SHALL, BY NATURE REFERENCE ALL

DRAWINGS AND SPECIFICATIONS OF THE CONTRACT DOCUMENTS.

2. THE PROPOSED ALTERNATE IS INTENDED TO TAKE PLACE AT THE

SAME TIME AS THE OTHER WORK IN THE SEQUENCE OF WORK,

UTILIZING MEANS AND METHODS AS DETERMINED BY THE

CONTRACTOR.

3. IN GENERAL THE SCOPE OF THE ALTERNATIVE INCLUDES THE

REPLACEMENT OF THE EXISTING ROOFING ASSEMBLY WITH A NEW

TPO ROOFING SYSTEM. SYSTEM SHALL INCLUDE MEMBRANE,

PROTECTION BOARD, INSULATION, FASTENERS/ADHESIVES, FLASHING

AND ALL ASSOCIATED SYSTEMS AND SEALANTS FOR A COMPLETE

WATER TIGHT SYSTEM. REFER TO THE SPECIFICATIONS AND

MANUFACTURER'S REQUIREMENTS.

4. WORK SHALL INCLUDE REMOVAL AND INSTALLATION OF EQUIPMENT,

DECK INFILL AND NEW PENETRATIONS IN EXISTING ROOF DECKS AS

CALLED FOR IN THE CONTRACT DOCUMENTS.

5. REMOVE (PROVIDE CREDIT) FROM THE SCOPE OF THE CONTRACT

DOCUMENTS, SELECTIVE DEMOLITION OF THE ROOF MEMBRANE AND

INSULATION AND PATCHING OF THESE AREAS.

6. CONTRACTOR TO PROVIDE FOR TEST SAMPLING FOR HAZARDOUS

CONDITIONS INCLUDING SEALANTS AT EACH BUILDING AND THREE (3)

ROOFING CORES AT EACH BUILDING TO VERIFY EXISTING CONDITIONS

BEFORE COMMENCING WITH DEMOLITION AT THE ROOF. VISUAL

IDENTIFUICATION OF HAZARDOUS MATERIALS DURING THE COURSE

OF CONSTRUCTION SHALL BE PER THE CONTRACT DOCUMENT

SPECIFICATION SECTION 02095..

7. CONTRACTOR TO PROVIDE A UNIT COST FOR ROOFING HAZARDOUS

MATERIAL PER THE CONTRACT DOCUMENT SPECIFICATION SECTION

02095.

PROJECT ALTERNATIVE SUMMARY NOTES:

DESIGNED:

CADD:

TECH REVIEW:

DATE:

SUB SHEET NO. TITLE OF SHEET DRAWING NO.

PMIS/PKG. NO.

SHEET

OF

5/8/2019

5:09:38 PM

NCRO HQ BUILDINGS ROOF REPLACEMENTNCRO HQ BUILDINGS ROOF REPLACEMENTNCRO HQ BUILDINGS ROOF REPLACEMENTNCRO HQ BUILDINGS ROOF REPLACEMENT A1A1A1A1

GLR

GLR

KB

BUILDING D BUILDING D BUILDING D BUILDING D ---- NEWNEWNEWNEW

ROOF PLANROOF PLANROOF PLANROOF PLAN

1/8" = 1'-0"

NEW MAIN ROOF D

TRUE

0' 4' 8' 16' 32'

161311975321

DD

C

B

AA

15141210864

PENTHOUSE ROOF

MAIN ROOF

BUILDING A

H.P.

H.P.

H.P.

RD

NEW CONDUIT

PENETRATIONS

18 19

20 21 22 23 24

E

F

G

H

J

K

L

M

N

P

Q

R

S

21.821.2

RD RD RD

RD

H.P.H.P.

H.P. H.P. H.P.

RDRDRD

CUCUCUCUCU

VENT

EF-1

VENT (E)

VENT

VENT

FAN

FAN

(E) VENT

(E) ROOF

VENT

VENT (E)

VENT (E)

VENT (E)

VENT (E)

EXHAUST

GOOSENECK

DUCT

RD

RD

RD

RD

H.P.

H.P.

H.P.

H.P.

H.P.

EF-2

CU

CU

ACCU

VENT

NEW CONDUIT

PENETRATIONS

BUILDING B

5 2

ROOF @ COOL.

TOWER PAD

ROOF @

ENTRY

VESTIBULE

MAIN ROOF

AT ALL

PARAPET

WALLS TYP.

CAP FLASHING @ T.O. BRICK WALL WITH NO

ROOFING INTEGRATION AROUND COOLING

TOWER WELL TO REMAIN IN PLACE

AT ALL

PARAPET

WALLS TYP.

BRONZE

ANNODIZED AT

ALL KNEE WALLS

AND AROUND

COLUMNS, TYP.

BRONZE

ANNODIZED AT

ALL WALL

FLASHING, TYP.

TYP.

TYP.

A2

Sim

50' - 4"

2'

111' - 10 3/4"

172' - 1"

/2

23' - 4"

1"

1. PROVIDE FOR DEMOLITION OF THE EXISTING ROOFING SYSTEM PER

THE SPECIFICATIONS IN THE CONTRACT DOCUMENTS. WORK SHALL

INCLUDE COMPLETE REMOVAL OF SYSTEM COMPONENTS AND

THOROUGH CLEANING OF SUBSTRATE TO ASSURE A CLEAN

APPEARANCE AND ACCEPTABLE SUBSTRATE FOR THE NEW ROOFING

SYSTEM. COMPONENTS SHALL INCLUDE BUT NOT LIMITED TO

WALKING PADS, MEMBRANE, PROTECTION BOARD, INSULATION,

FASTENERS, FLASHING, & SEALANTS IN ITS ENTIRETY.

2. LOCATION OF ROOF PENERTRATIONS ARE APPROXIMATE.

CONTRACTOR TO PROVIDE COORDINATION DRAWING AND VERIFY ALL

LOCATIONS IN THE FIELD.

3. CONTRACTOR TO CONFIRM TYPES AND QUANTITIES OF

PENETRATIONS WITH MEP COORDINATION DRAWINGS.

4. DETAILS AS SHOWN ARE TYPICAL AND PROVIDED FOR REFERENCE.

CONTRACTOR TO PROVIDE A COMPLETE SET OF MANUFACTURER

PPROVED DETAILS FOR TYPICAL AND ATYPICAL CONDITIONS.

INCORPORATE ALL COMPONENTS OF A WATER TIGHT ROOFING

SYSTEM THAT SATISFIES THE DESIGN INTENT AND MANUFACTURER'S

WARRANTY.

ROOF PLAN GENERAL NOTES:

1. THE PROPOSED ALTERNATIVE SHALL, BY NATURE REFERENCE ALL

DRAWINGS AND SPECIFICATIONS OF THE CONTRACT DOCUMENTS.

2. THE PROPOSED ALTERNATE IS INTENDED TO TAKE PLACE AT THE

SAME TIME AS THE OTHER WORK IN THE SEQUENCE OF WORK,

UTILIZING MEANS AND METHODS AS DETERMINED BY THE

CONTRACTOR.

3. IN GENERAL THE SCOPE OF THE ALTERNATIVE INCLUDES THE

REPLACEMENT OF THE EXISTING ROOFING ASSEMBLY WITH A NEW

TPO ROOFING SYSTEM. SYSTEM SHALL INCLUDE MEMBRANE,

PROTECTION BOARD, INSULATION, FASTENERS/ADHESIVES, FLASHING

AND ALL ASSOCIATED SYSTEMS AND SEALANTS FOR A COMPLETE

WATER TIGHT SYSTEM. REFER TO THE SPECIFICATIONS AND

MANUFACTURER'S REQUIREMENTS.

4. WORK SHALL INCLUDE REMOVAL AND INSTALLATION OF EQUIPMENT,

DECK INFILL AND NEW PENETRATIONS IN EXISTING ROOF DECKS AS

CALLED FOR IN THE CONTRACT DOCUMENTS.

5. REMOVE (PROVIDE CREDIT) FROM THE SCOPE OF THE CONTRACT

DOCUMENTS, SELECTIVE DEMOLITION OF THE ROOF MEMBRANE AND

INSULATION AND PATCHING OF THESE AREAS.

6. CONTRACTOR TO PROVIDE FOR TEST SAMPLING FOR HAZARDOUS

CONDITIONS INCLUDING SEALANTS AT EACH BUILDING AND THREE (3)

ROOFING CORES AT EACH BUILDING TO VERIFY EXISTING CONDITIONS

BEFORE COMMENCING WITH DEMOLITION AT THE ROOF. VISUAL

IDENTIFUICATION OF HAZARDOUS MATERIALS DURING THE COURSE

OF CONSTRUCTION SHALL BE PER THE CONTRACT DOCUMENT

SPECIFICATION SECTION 02095..

7. CONTRACTOR TO PROVIDE A UNIT COST FOR ROOFING HAZARDOUS

MATERIAL PER THE CONTRACT DOCUMENT SPECIFICATION SECTION

02095.

PROJECT ALTERNATIVE SUMMARY NOTES:

1. TAPERED INSULATION TO PROVIDE FOR SLOPE OF 1/4" = 1'-0", TYPICAL.

2. PROVIDE NEW TPO MEMBRANE ROOFING SYSTEM. SEE

SPECIFICATIONS AND DETAILS FOR SYSTEM COMPONENTS AS

REQUIRED BY MANUFACTURER.

3. PROVIDE FOR REMOVAL AND REPLACEMENT OF ALL EXISTING METAL

WALL & CAP FLASHING AND FASCIA. NEW ALUMINUM FLASHING &

FASCIA SHALL MATCH EXISTING FINISH & PROFILES WITH

ADJUSTMENTS AS REQUIRED FOR THICKNESSES OF NEW ROOFING

ASSEMBLIES. SEE RELATED DETAILS.

4. PROVIDE FOR TAPERED SUMPS AT ROOF DRAINS. NEW ROOF DRAINS

PER THE CONTRACT DOCUMENT SPECIFICATIONS.

5. PROVIDE ROOFING MEMBRANE UP AND OVER PEDESTALS AT COOLING

TOWERS.

6. REMOVE EXISTING PIPE RAIL AND FILL HOLES IN MASONRY WITH NON-

SHRINK GROUT.

7. REPLACE EXISTING (2) PENTHOUSE LADDERS WITH ALUMINUM FIXED

LADDER WITH CAGE AND WALK THRU. ANCHOR LADDER IN MASONRY

AS SPECIFIED BY MANUFACTURER WITH EPOXY. BASIS OF DESIGN IS

"PRECISION LADDERS".

8. NEW "SKID" CURBS FOR CONDENSING UNIT(S). SEE "SKID" CURB

DETAILS.

9. PROVIDE NEW "DOG HOUSE" FOR MULTIPLE PENETRATIONS.

CONDENSING AND POWER LINES TO BE CONSOLIDATED TO MINIMIZE

PENETRATIONS. SEE DETAILS.

10 PROVIDE FOR NEW GUARD RAIL PER THE CONTRACT DOCUMENTS.

RAIL SHALL EXTENT 30" BEYOND EACH SIDE OF THE HATCH.

11 REMOVE EXISTING LOOSE ANCHORS AND REPLACE WITH MASONRY

ANCHORS SET IN EPOXY AT ACCESS HATCH.

12 PROVIDE END DAM FLASHING AT (HIGHER) PARAPET WALL @

INTERSECTION WITH PENTHOUSE WALL AND CONTINUE WALL

COUNTERFLSHING FROM BELOW, UP AND OVER PARAPET CAP

FLASHING.

13 PROVIDE FOR REPLACEMENT OF EXISTING GUTTERS WITH 6" DEEP

ALUMINUM RECTANGUAR PROFILE TO MATCH EXISTING.

14 CLEAN OUT DOWNSPOUTES TO REMAIN. MAKE CONNECTION WITH

NEW GUTTERS.

15 REPLACE EXISTING SKYLIGHTS WITH NEW SELF-FLASHING,

THERMALLY BROKEN, COMMERCIAL FIXED SKYLIGHT BY "SUN-TEK OR

EQUAL. UNIT SHALL HAVE A INSULATED 12" CURB, POLYCARBONATE

DOME AND WHITE POWDER COAT FRAME. PROVIDE FOR WORK

REQUIRED TO RESIZE OPENINGS FOR STANDRARD UNIT SIZE.

16 LINE OF WALK WAY PADS

ROOF PLAN KEY NOTES:

6" WIDE TPO PRESSURE-

SENSITIVE COVER STRIP

IN CONJUNCTION WITH

TPO PRIMER

FULLY ADHERED TPO, LAP

OVER EDGE

INSULATION AND

PROTECTION BOARD

DRIP EDGE FASCIA

1 1/2" RING SHANK NAILS

@ 6" O.C. MAX.

MANUFACTURER'S FASTENER

& SEAM FASTENING PLATE

BONDING ADHESIVE

HOT AIR WELD, 1 1/2" MIN.

BEYOND FASTENING PLATES

TPO MEMBRANE

CUT EDGE

SEALANT

CANT STRIP

WATER CUT OFF MASTIC

DESIGNED:

CADD:

TECH REVIEW:

DATE:

SUB SHEET NO. TITLE OF SHEET DRAWING NO.

PMIS/PKG. NO.

SHEET

OF

5/8/2019

5:01:46 PM

NPS NCRO HQ - ROOF REPLACEMENT

A2

GLR

GLR

KB

BUILDINGS A/B -

ROOF PLANS

1/8" = 1'-0"

NEW BLDG A MAIN ROOF PLAN1

3" = 1'-0"

ROOF DETAIL - ROOF LEVEL CHANGE2

RD

RD

MAINTAIN EXISTING 1/8"

PER FOOT SLOPE THIS

ROOF ONLY

C U

NEW RTU ON PRE-

MANUFACTURED

CURB. FLASH WITH

CRICKETS

CONDUIT FOR

TEL/COM

C U

EF-3

VENT

NEW

SKYLIGHTS

SATELITE DISH ON

POST WITH NEW

FLASHING

MAIN ROOF

LOWER

ROOF

LOWER

ROOF

A4

Sim

1. PROVIDE FOR DEMOLITION OF THE EXISTING ROOFING SYSTEM PER

THE SPECIFICATIONS IN THE CONTRACT DOCUMENTS. WORK SHALL

INCLUDE COMPLETE REMOVAL OF SYSTEM COMPONENTS AND

THOROUGH CLEANING OF SUBSTRATE TO ASSURE A CLEAN

APPEARANCE AND ACCEPTABLE SUBSTRATE FOR THE NEW ROOFING

SYSTEM. COMPONENTS SHALL INCLUDE BUT NOT LIMITED TO

WALKING PADS, MEMBRANE, PROTECTION BOARD, INSULATION,

FASTENERS, FLASHING, & SEALANTS IN ITS ENTIRETY.

2. LOCATION OF ROOF PENERTRATIONS ARE APPROXIMATE.

CONTRACTOR TO PROVIDE COORDINATION DRAWING AND VERIFY ALL

LOCATIONS IN THE FIELD.

3. CONTRACTOR TO CONFIRM TYPES AND QUANTITIES OF

PENETRATIONS WITH MEP COORDINATION DRAWINGS.

4. DETAILS AS SHOWN ARE TYPICAL AND PROVIDED FOR REFERENCE.

CONTRACTOR TO PROVIDE A COMPLETE SET OF MANUFACTURER

PPROVED DETAILS FOR TYPICAL AND ATYPICAL CONDITIONS.

INCORPORATE ALL COMPONENTS OF A WATER TIGHT ROOFING

SYSTEM THAT SATISFIES THE DESIGN INTENT AND MANUFACTURER'S

WARRANTY.

ROOF PLAN GENERAL NOTES:

1. THE PROPOSED ALTERNATIVE SHALL, BY NATURE REFERENCE ALL

DRAWINGS AND SPECIFICATIONS OF THE CONTRACT DOCUMENTS.

2. THE PROPOSED ALTERNATE IS INTENDED TO TAKE PLACE AT THE

SAME TIME AS THE OTHER WORK IN THE SEQUENCE OF WORK,

UTILIZING MEANS AND METHODS AS DETERMINED BY THE

CONTRACTOR.

3. IN GENERAL THE SCOPE OF THE ALTERNATIVE INCLUDES THE

REPLACEMENT OF THE EXISTING ROOFING ASSEMBLY WITH A NEW

TPO ROOFING SYSTEM. SYSTEM SHALL INCLUDE MEMBRANE,

PROTECTION BOARD, INSULATION, FASTENERS/ADHESIVES, FLASHING

AND ALL ASSOCIATED SYSTEMS AND SEALANTS FOR A COMPLETE

WATER TIGHT SYSTEM. REFER TO THE SPECIFICATIONS AND

MANUFACTURER'S REQUIREMENTS.

4. WORK SHALL INCLUDE REMOVAL AND INSTALLATION OF EQUIPMENT,

DECK INFILL AND NEW PENETRATIONS IN EXISTING ROOF DECKS AS

CALLED FOR IN THE CONTRACT DOCUMENTS.

5. REMOVE (PROVIDE CREDIT) FROM THE SCOPE OF THE CONTRACT

DOCUMENTS, SELECTIVE DEMOLITION OF THE ROOF MEMBRANE AND

INSULATION AND PATCHING OF THESE AREAS.

6. CONTRACTOR TO PROVIDE FOR TEST SAMPLING FOR HAZARDOUS

CONDITIONS INCLUDING SEALANTS AT EACH BUILDING AND THREE (3)

ROOFING CORES AT EACH BUILDING TO VERIFY EXISTING CONDITIONS

BEFORE COMMENCING WITH DEMOLITION AT THE ROOF. VISUAL

IDENTIFUICATION OF HAZARDOUS MATERIALS DURING THE COURSE

OF CONSTRUCTION SHALL BE PER THE CONTRACT DOCUMENT

SPECIFICATION SECTION 02095..

7. CONTRACTOR TO PROVIDE A UNIT COST FOR ROOFING HAZARDOUS

MATERIAL PER THE CONTRACT DOCUMENT SPECIFICATION SECTION

02095.

PROJECT ALTERNATIVE SUMMARY NOTES:

1. TAPERED INSULATION TO PROVIDE FOR SLOPE OF 1/4" = 1'-0", TYPICAL.

2. PROVIDE NEW TPO MEMBRANE ROOFING SYSTEM. SEE

SPECIFICATIONS AND DETAILS FOR SYSTEM COMPONENTS AS

REQUIRED BY MANUFACTURER.

3. PROVIDE FOR REMOVAL AND REPLACEMENT OF ALL EXISTING METAL

WALL & CAP FLASHING AND FASCIA. NEW ALUMINUM FLASHING &

FASCIA SHALL MATCH EXISTING FINISH & PROFILES WITH

ADJUSTMENTS AS REQUIRED FOR THICKNESSES OF NEW ROOFING

ASSEMBLIES. SEE RELATED DETAILS.

4. PROVIDE FOR TAPERED SUMPS AT ROOF DRAINS. NEW ROOF DRAINS

PER THE CONTRACT DOCUMENT SPECIFICATIONS.

5. PROVIDE ROOFING MEMBRANE UP AND OVER PEDESTALS AT COOLING

TOWERS.

6. REMOVE EXISTING PIPE RAIL AND FILL HOLES IN MASONRY WITH NON-

SHRINK GROUT.

7. REPLACE EXISTING (2) PENTHOUSE LADDERS WITH ALUMINUM FIXED

LADDER WITH CAGE AND WALK THRU. ANCHOR LADDER IN MASONRY

AS SPECIFIED BY MANUFACTURER WITH EPOXY. BASIS OF DESIGN IS

"PRECISION LADDERS".

8. NEW "SKID" CURBS FOR CONDENSING UNIT(S). SEE "SKID" CURB

DETAILS.

9. PROVIDE NEW "DOG HOUSE" FOR MULTIPLE PENETRATIONS.

CONDENSING AND POWER LINES TO BE CONSOLIDATED TO MINIMIZE

PENETRATIONS. SEE DETAILS.

10 PROVIDE FOR NEW GUARD RAIL PER THE CONTRACT DOCUMENTS.

RAIL SHALL EXTENT 30" BEYOND EACH SIDE OF THE HATCH.

11 REMOVE EXISTING LOOSE ANCHORS AND REPLACE WITH MASONRY

ANCHORS SET IN EPOXY AT ACCESS HATCH.

12 PROVIDE END DAM FLASHING AT (HIGHER) PARAPET WALL @

INTERSECTION WITH PENTHOUSE WALL AND CONTINUE WALL

COUNTERFLSHING FROM BELOW, UP AND OVER PARAPET CAP

FLASHING.

13 PROVIDE FOR REPLACEMENT OF EXISTING GUTTERS WITH 6" DEEP

ALUMINUM RECTANGUAR PROFILE TO MATCH EXISTING.

14 CLEAN OUT DOWNSPOUTES TO REMAIN. MAKE CONNECTION WITH

NEW GUTTERS.

15 REPLACE EXISTING SKYLIGHTS WITH NEW SELF-FLASHING,

THERMALLY BROKEN, COMMERCIAL FIXED SKYLIGHT BY "SUN-TEK OR

EQUAL. UNIT SHALL HAVE A INSULATED 12" CURB, POLYCARBONATE

DOME AND WHITE POWDER COAT FRAME. PROVIDE FOR WORK

REQUIRED TO RESIZE OPENINGS FOR STANDRARD UNIT SIZE.

16 LINE OF WALK WAY PADS

ROOF PLAN KEY NOTES:

DESIGNED:

CADD:

TECH REVIEW:

DATE:

SUB SHEET NO. TITLE OF SHEET DRAWING NO.

PMIS/PKG. NO.

SHEET

OF

5/8/2019

5:07:10 PM

NPS NCRO HQ NPS NCRO HQ NPS NCRO HQ NPS NCRO HQ ---- ROOF REPLACEMENTROOF REPLACEMENTROOF REPLACEMENTROOF REPLACEMENT A3A3A3A3

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BUILDING C BUILDING C BUILDING C BUILDING C ---- NEWNEWNEWNEW

ROOF PLANROOF PLANROOF PLANROOF PLAN

1/8" = 1'-0"

NEW BLDG C MAIN ROOF PLAN

MANUFACTURER'S

FASTENER & SEAM

FASTENING PLATE

RIGID INSULATION

AND PROTECTION

BOARD AS

SPECIFIED

VENT (COLD PIPE, NOT

TO EXCEED 160 F

WATER CUT OFF MASTIC

HOT AIR WELD, 1 1/2" MIN.

BEYOND FASTENING PLATES

TPO MEMBRANEEXIST. ROOF

STRUCTURE

STAINLESS STEEL

CLAMP RING

THERMOPLASTIC PRE-

MOLDED PIPE FLASHING

PIPE SEAL MUST HAVE

INTACT RIB AT TOP EDGE,

REGARDLESS OF PIPE DIA.

NOTE: PROVIDE FASTENERS OR

ADHESION AS REQUIRED BY

MANUFACTURER AND INSTALLATION

RECOMMENDATIONS.

PROVIDE

MANUFACTURERED

CABLE PIPE SIMILAR TO

FLAVENT CABLE OUTLET

BY KLOBER

TPO MEMBRANE

RIGID INSULATION AND

PROTECTION BOARD AS SPECIFIED

EXIST. STRUCTURE

CONT WATERPROOF MASTIC FULLY ADHERED @ SPLICE

4" MIN. OVER LAP

12" MIN LAP

SUMP DRAIN PAN

WATER CUT-

OFF MASTIC

DUAL OUTLET

ROOF DRAIN NOTE: ALL BOLTS OR CLAMPS MUST BE IN PLACE TO PROVIDE

CONSTANT COMPRESSION ON WATER CU-OFF MASTIC. USE ONE

FULL TUBE OF WATER CUT-OFF MASTIC FOR EACH DRAIN,

COVERING THE ENTIRE DRAIN BOWL & UNDER THE DRAIN RING

MANUFACTURER'S FASTENER

& SEAM FASTENING PLATE

RIGID INSULATION

AND PROTECTION

BOARD AS SPECIFIED

METAL CAP OR CAP

FLASHING

BONDING ADHESIVE

HOT AIR WELD, 1 1/2" MIN.

BEYOND FASTENING PLATES

TPO MEMBRANE

NOTE: PROVIDE FASTENERS OR ADHESION AS

REQUIRED BY MANUFACTURER AND INSTALLATION

RECOMMENDATIONS.

FASTENER SPACING @

12" O.C. MAX

CUT EDGE SEALANT

EXIST. STRUCTURE

2X PT WOOD

BLOCKING AT NEW

OPENING

2 X 12 PT

WOOD CURB

NOTE: WHEN

FASTENERS ARE USED

TO PENETRATE THE

METAL COUNTER

FLASHING OR CAP, USE

EPDM WASHERS.

APPLY WATER CUT-OFF

MASTIC UNDER THE

COUNTER FLASHING

OR CAULK THE

FASTENER HEADS

CANT STRIP

PROVIDE A NEW SHEET

METAL ENCLOSURE FOR

GROUPED

PIPING AT ALL MECHANICAL

EQUIPTMENT LOCATIONS

AND WHERE THEY

CURRENTLY EXIST FOR

OTHER COMMUNICATIONS

AND POWER CONDUITS

SHEET METAL ENCLOSURE

WITH REMOVEABLE

CROSSBREAK OR PITCH

DRAINAGE

INSULATE VOID

SHEET METAL OR FLEX

TUBE COLLAR

SLOPES PIPES DOWN

AWAY FROM HOOD

REMOVALABLE SHEET-METAL

COUNTERFLASHING

PREFAB CORNER FLASHING

PIECE AT CORNER

ADHERED MEMBRANE FLASHING

SEALANT IF REQUIRED FOR

SPECIFIC SURFACE

HOT AIR WELDED SEAL AS

REQUIRED BY ROOFING MFR

GASKETED FASTENER

MIN TWO PER SIDE

BONDING ADHESIVE

SEAM-PLATES

AND FASTENERS

2x6" MIN WOOD NAILER ATTACHED

TO SUBSTRATE OVERALL

THICKNESS TO MATCH INSULATION

SHEET METAL FLASHING RECEIVER

MIN 4" CLEARANCE FROM

PIPE TO TOP OF CURB MIN 2"

BETWEEN PIPES

SLOPE

COUNTER FLASHING CAP

P.T. WOOD NAILER

RIGID INSULATION

P.T. BLOCKING TO

CONCRETE DECK

FABRICATE VERTICAL

LEG FROM CONDENSING

UNIT AND USE GALV.

FASTENERS TO NAILER

ADHERED TPO

MEMBRANE FLASHING

PREMANUFACTURED "SKID"

CURB: BASIS OF DESIGN IS

PATE COMPANY 14 GA. 8"

HIGH

ADHESIVE

IN SEAM SEALANT

TPO MEMBRANE

EXIST. ROOF

STRUCTURE

SINGLE PLY SEALANT

METAL COUNTER

FLASHING

CUT REGLET IN EXISTING

MASONRY WALL

MANUFACTURER

TERMINATION BAR

WITH MASONRY

ANCHORS

WATER CUT OFF

MASTIC

TPO MEMBRANE

MANUFACTURER

BONDING ADHESIVE

PROVIDE MIN.

CLEARANCE TO ROOF

AS REQUIRED BY

MANUFACTURER

MANUFACTURER'S

FASTENER & SEAM

FASTENING PLATE

RIGID

INSULATION

AND

PROTECTION

BOARD AS

SPECIFIED

TPO MEMBRANE

EXIST. ROOF

STRUCTURE

HOT AIR WELD 1 1/2" MIN.

CUT-EDGE SEALANT

NOTE: PROVIDE FASTENERS OR

ADHESION AS REQUIRED BY

MANUFACTURER AND INSTALLATION

RECOMMENDATIONS.

HOT AIR-WELD

NON-REINFORCED TPO

WHITE EPDM, 6" WIDE

PRESSURE-SENSITIVE

UNCURED FLASHING

PRIMER OR LOW VOC PRIMER

WHITE LAP SEALANT

POST (SHOW IN SECTION)

DISTANCE AS REQUIRED BY

MANUACTURER

6" WIDE TPO PRESSURE-

SENSITIVE COVER STRIP

IN CONJUNCTION WITH

TPO PRIMER

FULLY ADHERED TPO, LAP

OVER EDGE

INSULATION AND

PROTECTION BOARD

TPO COATED

DRIP EDGE

FASCIA

DOT DIPPED GALV. ROOF

NAILS @4" O.C. MAX.

CONT. BEAD OF WATER

CUT OFF MASTIC

22 GAUGE MIN.

CONTINUOUS

CLEAT

ANCHOR 6" ALUMINUM

GUTTER ACCORDING

TO SMACMA

RECOMMENDATIONS

P.T. BLOCKING

EXTERIOR WALL

TPO MEMBRANE

ADHERED TO

WALL WITH

MANUFACTURER'

S APPROVED

ADHESIVE. RUN

MEMBRANE UP

AND OVER STONE

CAP.

DRIP EDGE

GROMMETED

FASTENERS

INSTALLED PER

SMACNA OR NCRA

GUIDELINES

METAL COPING

SLOPED TO DRAIN

PER SMACNA OR

NCRA GUIDELINES

INSTALL MEMBRANE

OUTSIDE FACE OF WALL

TO BOTTOM OF CAP.

FASTEN CLEAT PER

SMACNA OR NCRA

REQUIREMENTS FOR

MASONRY SURFACE

METAL CLEAT GAUGE,

FASTENER AND SPACING

PER SMACNA OR NCRA

REQUIREMENTS; MIN. 24

GA. 6" O.C. MAX

DESIGNED:

CADD:

TECH REVIEW:

DATE:

SUB SHEET NO. TITLE OF SHEET DRAWING NO.

PMIS/PKG. NO.

SHEET

OF

5/8/2019

5:08:18 PM

NPS NCRO HQ NPS NCRO HQ NPS NCRO HQ NPS NCRO HQ ---- ROOF REPLACEMENTROOF REPLACEMENTROOF REPLACEMENTROOF REPLACEMENT A4A4A4A4

GLR

GLR

KB

ROOF DETAILSROOF DETAILSROOF DETAILSROOF DETAILS

3" = 1'-0"

ROOF DETAIL - VENT PIPE

3" = 1'-0"

ROOF DETAIL - ROOF DRAIN

3" = 1'-0"

ROOF DETAIL - MECHANICAL CURB

3" = 1'-0"

ROOF DETAIL - DOG HOUSE

3" = 1'-0"

ROOF DETAIL - CONDENSER "SKID" CURB

3" = 1'-0"

ROOF DETAIL - WALL TERMINATION

3" = 1'-0"

ROOF DETAIL - POST PENETRATION

73" = 1'-0"

ROOF DETAIL - GUTTER DETAIL

3" = 1'-0"

ROOF DETAIL - PARAPET DETAIL

NCRO - 201409

Bid Option #4 - 5/8/2019

061000 - 1

ROUGH CARPENTRY

SECTION 061000 - ROUGH CARPENTRY

PART 1 - GENERAL

1.1 RELATED DOCUMENTS

A. Drawings and General Provisions of the Contract, including the General Conditions and

Division 01 General Requirements, apply to this Section.

1.2 SUMMARY

A. Section Includes:

1. Wood blocking, cants, and nailers.

2. Wood furring and grounds.

1.3 REGULATORY REQUIREMENTS

A. Regulatory Requirements: Comply with applicable requirements of the laws, codes, ordinances and regulations of Federal, State and Municipal authorities having jurisdiction. Obtain necessary approvals from authorities having jurisdiction.

1.4 SUSTAINABLE DESIGN REQUIREMENTS

A. Regional Materials: Rough carpentry materials shall be manufactured within 500 miles of Project site from materials that have been extracted, harvested, or recovered within 500 miles of Project site.

B. Certified Wood: Lumber and plywood shall be certified as "FSC Pure" or "FSC Mixed Credit" according to FSC STD-01-00 and FSC STD-40-004.

C. Additional Requirements: Comply with requirements of Section 018113 Sustainable Design Requirements for Non LEED Projects.

061000 - 2

1.5 DEFINITIONS

A. Lumber grading agencies, and the abbreviations used to reference them, include the following:

1. NeLMA: Northeastern Lumber Manufacturers' Association.

2. NHLA: National Hardwood Lumber Association.

3. NLGA: National Lumber Grades Authority.

4. SPIB: The Southern Pine Inspection Bureau.

5. WCLIB: West Coast Lumber Inspection Bureau.

6. WWPA: Western Wood Products Association.

1.6 ACTION SUBMITTALS

A. Product Data: For each type of process and factory-fabricated product. Indicate component materials and dimensions and include construction and application details.

1. Include data for wood-preservative treatment from chemical treatment manufacturer and certification by treating plant that treated materials comply with requirements. Indicate type of preservative used and net amount of preservative retained.

2. Include data for fire-retardant treatment from chemical treatment manufacturer and certification by treating plant that treated materials comply with requirements. Include physical properties of treated materials based on testing by a qualified independent testing agency.

3. For fire-retardant treatments, include physical properties of treated lumber both before and after exposure to elevated temperatures, based on testing by a qualified independent testing agency according to ASTM D 5664.

4. For products receiving a waterborne treatment, include statement that moisture content of treated materials was reduced to levels specified before shipment to Project site.

5. Include copies of warranties from chemical treatment manufacturers for each type of treatment.

B. Sustainable Design Submittals:

1. Product Certificates: For regional materials, indicating location of material manufacturer and point of extraction, harvest, or recovery for each raw material. Include distance to Project and cost for each regional material.

2. Chain-of-Custody Certificates: For certified wood products. Include statement of costs.

3. Chain-of-Custody Qualification Data: For manufacturer and vendor.

1.7 INFORMATIONAL SUBMITTALS

A. Evaluation Reports: For the following, from ICC-ES:

061000 - 3

1. Preservative-treated wood products.

2. Fire-retardant-treated wood products.

3. Power-driven fasteners.

4. Powder-actuated fasteners.

5. Expansion anchors.

6. Metal framing anchors.

1.8 QUALITY ASSURANCE

A. Testing Agency Qualifications: For testing agency providing classification marking for fire-retardant treated material, an inspection agency acceptable to authorities having jurisdiction that periodically performs inspections to verify that the material bearing the classification marking is representative of the material tested.

B. Manufacturer Qualifications: A qualified manufacturer that is certified for chain of custody by an

FSC-accredited certification body.

C. Vendor Qualifications: A vendor that is certified for chain of custody by an FSC-accredited certification body.

D. Sole-Source Responsibility:

1. Fire Retardant Treated Wood: Obtain each type of fire-retardant-treated wood product from one source for both treatment and fire-retardant formulation.

2. Wood Preservative Treatment: Obtain each type of wood preservative treated wood product from one source for both treatment and wood preservative formulation.

1.9 DELIVERY, STORAGE, AND HANDLING

A. Stack lumber and panels flat with spacers beneath and between each bundle to provide air circulation. Protect lumber and sheathing from weather by covering with waterproof sheeting, securely anchored. Provide for air circulation around stacks and under coverings.

1.10 FIELD CONDITIONS

A. Do not install finish carpentry materials that are wet, moisture damaged, or mold damaged.

1. Indications that materials are wet or moisture damaged include, but are not limited to, discoloration, sagging, or irregular shape.

2. Indications that materials are mold damaged include, but are not limited to, fuzzy or splotchy surface contamination and discoloration.

061000 - 4

PART 2 - PRODUCTS

2.1 WOOD PRODUCTS, GENERAL

A. Lumber: DOC PS 20 and applicable rules of grading agencies indicated. If no grading agency is indicated, provide lumber that complies with the applicable rules of any rules-writing agency certified by the ALSC Board of Review. Provide lumber graded by an agency certified by the ALSC Board of Review to inspect and grade lumber under the rules indicated.

1. Factory mark each piece of lumber with grade stamp of grading agency.

2. For exposed lumber indicated to receive a stained or natural finish, mark grade stamp on end or back of each piece or mit grade stamp and provide certificates of grade compliance issued by grading agency.

3. Where nominal sizes are indicated, provide actual sizes required by DOC PS 20 for moisture content specified. Where actual sizes are indicated, they are minimum dressed sizes for dry lumber.

4. Provide dressed lumber, S4S, unless otherwise indicated.

B. Maximum Moisture Content of Lumber: 15 percent for 2-inch nominal thickness or less, 19 percent for more than 2-inch nominal thickness; unless otherwise indicated.

2.2 WOOD-PRESERVATIVE-TREATED MATERIALS

A. Preservative Treatment by Pressure Process: AWPA U1; Use Category UC2 for interior construction not in contact with the ground, Use Category UC3b for exterior construction not in contact with the ground, and Use Category UC4a for items in contact with the ground.

1. Preservative Chemicals: Acceptable to authorities having jurisdiction and containing no arsenic or chromium. Do not use inorganic boron (SBX) for sill plates.

B. Kiln-dry lumber after treatment to a maximum moisture content of 19 percent. Do not use material that is warped or does not comply with requirements for untreated material.

C. Mark lumber with treatment quality mark of an inspection agency approved by the ALSC Board of Review.

D. Application: Treat items indicated on Drawings, and the following:

1. Wood blocking, cants, nailers, and similar members in connection with roofing, flashing, underlayments, air barriers, and waterproofing.

061000 - 5

2. Wood sills, sleepers, blocking, furring, grounds, stripping, and similar concealed members in contact with masonry or concrete.

2.3 FIRE-RETARDANT-TREATED MATERIALS

A. General: Where fire-retardant-treated materials are indicated, use materials complying with requirements in this article, that are acceptable to authorities having jurisdiction, and with fire-test-response characteristics specified as determined by testing identical products per test method indicated by a qualified testing agency.

B. Fire-Retardant-Treated Lumber and Plywood by Pressure Process: Products with a flame spread index of 25 or less when tested according to ASTM E 84, and with no evidence of significant progressive combustion when the test is extended an additional 20 minutes, and with the flame front not extending more than 10.5 feet beyond the centerline of the burners at any time during the test.

1. Use treatment that does not promote corrosion of metal fasteners.

2. Exterior Type: Treated materials shall comply with requirements specified above for fire-retardant-treated lumber and plywood by pressure process after being subjected to accelerated weathering according to ASTM D 2898. Use for exterior locations and where indicated.

3. Design Value Adjustment Factors: Treated lumber shall be tested according ASTM D 5664, and design value adjustment factors shall be calculated according to ASTM D 6841. For enclosed roof framing, framing in attic spaces, and where high temperature fire-retardant treatment is indicated, provide material with adjustment factors of not less than 0.85 modulus of elasticity and 0.75 for extreme fiber in bending for Project's climatological zone.

C. Kiln-dry lumber after treatment to a maximum moisture content of 19 percent. Kiln-dry plywood after treatment to a maximum moisture content of 15 percent.

D. Identify fire-retardant-treated wood with appropriate classification marking of testing and inspecting agency acceptable to authorities having jurisdiction.

1. For exposed lumber indicated to receive a stained or natural finish, mark end or back of each piece or omit marking and provide certificates of treatment compliance issued by inspection agency.

E. For exposed items indicated to receive a stained or natural finish, use chemical formulations that do not bleed through, contain colorants, or otherwise adversely affect finishes.

F. Application: Treat items indicated on Drawings, and the following:

1. Concealed blocking.

061000 - 10

2. Wood cants, nailers, blocking, and similar members in connection with roofing.

2.4 MISCELLANEOUS LUMBER

A. General: Provide miscellaneous lumber indicated and lumber for support or attachment of other construction, including the following:

1. Wood blocking, cants, and nailers.

2. Wood furring and grounds.

B. For items of dimension lumber size, provide Construction or No. 2 grade lumber and any of the following species:

1. Hem-fir (north); NLGA.

2. Mixed southern pine; SPIB.

3. Spruce-pine-fir; NLGA.

4. Hem-fir; WCLIB or WWPA.

5. Spruce-pine-fir (south); NeLMA, WCLIB, or WWPA.

6. Western woods; WCLIB or WWPA.

7. Northern species; NLGA.

8. Eastern softwoods; NeLMA.

C. For blocking not used for attachment of other construction, Utility, Stud, or No. 3 grade lumber of any species may be used provided that it is cut and selected to eliminate defects that will interfere with its attachment and purpose.

D. For blocking and nailers used for attachment of other construction, select and cut lumber to eliminate knots and other defects that will interfere with attachment of other work.

2.5 FASTENERS

A. General: Provide fasteners of size and type indicated that comply with requirements specified in this article for material and manufacture.

1. Where carpentry is exposed to weather, in ground contact, pressure-preservative treated, or in area of high relative humidity, provide fasteners with hot-dip zinc coating complying with ASTM A 153/A 153M of Type 304 stainless steel.

B. Nails, Brads, and Staples: ASTM F 1667.

C. Power-Driven Fasteners: NES NER-272.

D. Wood Screws: ASME B18.6.1.

E. Screws for Fastening to Metal Framing: ASTM C 1002 or ASTM C 954, length as recommended by screw manufacturer for material being fastened.

F. Lag Bolts: ASME B18.2.1.

G. Bolts: Steel bolts complying with ASTM A 307, Grade A; with ASTM A 563 hex nuts and, where indicated, flat washers.

H. Expansion Anchors: Anchor bolt and sleeve assembly of material indicated below with capability to sustain, without failure, a load equal to 6 times the load imposed when installed in unit masonry assemblies and equal to 4 times the load imposed when installed in concrete as determined by testing per ASTM E 488 conducted by a qualified independent testing and inspecting agency.

1. Material: Carbon-steel components, zinc plated to comply with ASTM B 633, Class Fe/Zn 5.

2. Material: Stainless steel with bolts and nuts complying with ASTM F 593 and ASTM F 594, Alloy Group 1 or 2.

2.6 METAL FRAMING ANCHORS

A. Acceptable Products and Manufacturers: Subject to compliance with requirements, provide one of the following:

1. Cleveland Steel Specialty Co.

2. KC Metals Products, Inc.

3. Phoenix Metal Products, Inc.

4. Simpson Strong-Tie Company.USP Structural Connectors.

B. Galvanized-Steel Sheet: Hot-dip, zinc-coated steel sheet complying with ASTM A 653/A 653M, G60 coating designation.

1. Use for interior locations unless otherwise indicated.

C. Hot-Dip Heavy-Galvanized Steel Sheet: ASTM A 653/A 653M; Structural Steel (SS), high-strength low-alloy steel Type A (HSLAS Type A), or high-strength low-alloy steel Type B (HSLAS Type B); G185 coating designation; and not less than 0.036 inch thick.

1. Use for wood-preservative-treated lumber and where indicated.

PART 3 - EXECUTION

3.1 INSTALLATION, GENERAL

A. Set carpentry to required levels and lines, with members plumb, true to line, cut, and fitted. Fit carpentry to other construction; scribe and cope as needed for accurate fit. Locate furring, nailers, blocking, grounds, and similar supports to comply with requirements for attaching other construction.

B. Where wood-preservative-treated lumber is installed adjacent to metal decking, install continuous flexible flashing separator between wood and metal decking.

C. Framing Standard: Comply with AF&PA's WCD 1, "Details for Conventional Wood Frame Construction," unless otherwise indicated.

D. Metal Framing Anchors: Install metal framing anchors to comply with manufacturer's written instructions. Install fasteners through each fastener hole.

E. Do not splice structural members between supports unless otherwise indicated.

F. Provide blocking and framing as indicated and as required to support facing materials, fixtures, specialty items, and trim.

G. Provide fire blocking in furred spaces, stud spaces, and other concealed cavities.

H. Sort and select lumber so that natural characteristics will not interfere with installation or with fastening other materials to lumber. Do not use materials with defects that interfere with function of member or pieces that are too small to use with minimum number of joints or optimum joint arrangement.

I. Comply with AWPA M4 for applying field treatment to cut surfaces of preservative-treated lumber.

1. Use inorganic boron for items that are continuously protected from liquid water.

2. Use copper naphthenate for items not continuously protected from liquid water.

J. Securely attach carpentry work to substrate by anchoring and fastening as indicated, complying with the following:

1. NES NER-272 for power-driven fasteners.

2. Table 2304.9.1, "Fastening Schedule," in ICC's International Building Code.

K. Use steel common nails unless otherwise indicated. Select fasteners of size that will not fully penetrate members where opposite side will be exposed to view or will receive finish materials.

Make tight connections between members. Install fasteners without splitting wood. Drive nails snug but do not countersink nail heads unless otherwise indicated.

3.2 WOOD GROUND, SLEEPER, BLOCKING, AND NAILER INSTALLATION

A. Install where indicated and where required for screeding or attaching other work. Form to shapes indicated and cut as required for true line and level of attached work. Coordinate locations with other work involved.

B. Attach items to substrates to support applied loading. Recess bolts and nuts flush with surfaces unless otherwise indicated.

C. Provide permanent grounds of dressed, pressure-preservative-treated, key-beveled lumber not less than 1-1/2 inches wide and of thickness required to bring face of ground to exact thickness of finish material. Remove temporary grounds when no longer required.

3.3 WOOD FURRING INSTALLATION

A. Install level and plumb with closure strips at edges and openings. Shim with wood as required for tolerance of finish work.

3.4 PROTECTION

A. Protect installed products from damage from weather and other causes during construction.

B. Remove and replace rough carpentry materials that are wet, moisture damaged, and mold damaged.

1. Indications that materials are wet or moisture damaged include, but are not limited to, discoloration, sagging, or irregular shape.

2. Indications that materials are mold damaged include, but are not limited to, fuzzy or splotchy surface contamination and discoloration.

END OF SECTION

SECTION 072100 - THERMAL INSULATION

NCRO - 201409 072100 - 1

Bid Option #4 – 5/8/2019 THERMAL INSULATION

1.1 SUMMARY

A. Section Includes:

1. Glass-fiber blanket.

2. Glass-fiber board.

3. Roofing insulation

B. Related Sections

1. Section 072700 Air Barriers for air barriers as part of exterior wall construction.

2. Section 075200 Sheet Membrane Roofing (TPO) for insulation specified as part of roofing construction.

1.2 REGULATORY REQUIREMENTS

A. Regulatory Requirements: Comply with applicable requirements of the laws, codes, ordinances and regulations of Federal, State and Municipal authorities having jurisdiction. Obtain necessary approvals from authorities having jurisdiction.

1.3 SUSTAINABLE REQUIREMENTS

A. Regional Materials: Thermal insulation products shall be manufactured within 500 miles of Project site from materials that have been extracted, harvested, or recovered within 500 miles of Project site.

B. Additional Requirements: Comply with requirements of Section 018113 Sustainable Design Requirements for Non LEED Projects.

1.4 PERFORMANCE REQUIREMENTS

A. Fire Resistive Rating: Identify materials with appropriate markings of applicable testing and inspecting agency.

1. Where materials are required by law or are specified to have a fire resistive rating, provide materials, accessories and application procedures which have been listed by UL or tested according to ASTM E814/UL 1479 to achieve the rating required.

NCRO - 201409 072100 - 2

2. Surface-Burning Characteristics: ASTM E84. Where specified or required provide the following maximum flame spread and smoke developed ratings when materials are tested in accordance with ASTM E84.

a. Unfaced material will have a maximum flame spread and smoke-developed of 0

b. Faced material will have maximum flame spread and smoke-developed of 25 and 0 respectively.

3. Combustibility: Glass, slag-wool-fiber/rock-wool-fiber insulations shall be rated as non combustible as defined by NFPA standard 220 when tested in ac-cordance with ASTM E136.

1.5 ACTION SUBMITTALS

A. Product Data: For each type of thermal insulation product indicated. Submit manufacturer’s literature specifications, and installation instructions describing the general properties of each material and accessory to be used in the Work.

1.6 INFORMATIONAL SUBMITTALS

A. Product test reports: Based on evaluation of comprehensive tests performed by a qualified testing agency, for each product.

B. Sustainable Design Submittals:

1. Product Certificates: For regional materials, indicating location of material manufacturer and point of extraction, harvest, or recovery for each raw material. Include distance to Project and cost for each regional material.

C. Research/Evaluation Reports: For foam-plastic insulation, from ICC-ES and from authorities having jurisdiction.

D. Certificates:

1. Document Review: Before commencing work, submit a written statement signed by the Contractor and the Installer certifying that the Contract Documents and product data have been reviewed with material manufacturers' qualified technical representatives and that they agree the selected materials are proper, compatible with contiguous materials and adequate for the application shown.

E. Warranties: Sample of special warranties.

1.7 QUALITY ASSURANCE

A. Sole-Source Responsibility for Insulation Products: Obtain each type of building insulation from a single source with resources to provide products complying with requirements indicated without delaying the Work.

NCRO - 201409 072100 - 3

B. Preinstallation Conference: Conduct conference at Project site.

1. Review methods and sequence of thermal insulation installation, special details and conditions, standard of workmanship, quality control requirements, job organization and other pertinent topics related to the Work.

1.8 DELIVERY, STORAGE, AND HANDLING

A. Protect insulation materials from physical damage and from deterioration due to moisture, soiling, and other sources. Store inside and in a dry location. Comply with manufacturer's written instructions for handling, storing, and protecting during installation.

B. Protect foam-plastic board insulation as follows:

1. Do not expose to sunlight except to necessary extent for period of installation and concealment.

2. Protect against ignition at all times. Do not deliver foam-plastic board materials to Project site before installation time.

3. Quickly complete installation and concealment of foam-plastic board insulation in each area of construction.

1.9 WARRANTY

A. Warranty specified in this Article shall not deprive the Government of other rights the Government may have under other provisions of the Contract Documents and are in addition to and run concurrent with other warranties made by the Contractor under requirements of the Contract Documents.

1. Special Warranty: Upon completion of the work, provide the extruded polystyrene insulation manufacturer's fifteen (15) year warranty stating that the thermal resistance of the extruded polystyrene insulation will not vary more than 10% from its published value.

PART 2 - PRODUCTS

2.1 GLASS-FIBER BLANKET

A. Glass-Fiber Blanket, Unfaced: ASTM C 665, Type I; with maximum flame-spread and smoke-developed indexes of 25 and 50, respectively, per ASTM E 84; passing ASTM E 136 for combustion characteristics.

1. Manufacturers: Subject to compliance with requirements, available manufacturers offering products that may be incorporated into the Work include, but are not limited to, the following:

NCRO - 201409 072100 - 4

a. CertainTeed Corporation.

b. Johns Manville; a Berkshire Hathaway company.

c. Owens Corning.

B. Glass-Fiber Blanket, Reinforced-Foil Faced: ASTM C 665, Type III (reflective faced), Class A (faced surface with a flame-spread index of 25 or less); Category 1 (membrane is a vapor barrier), faced with foil scrim, foil-scrim kraft, or foil-scrim polyethylene.

1. Manufacturers: Subject to compliance with requirements, available manufacturers offering products that may be incorporated into the Work include, but are not limited to, the following:

a. CertainTeed Corporation.

b. Johns Manville; a Berkshire Hathaway company.

c. Owens Corning.

2.2 GLASS-FIBER BOARD

A. Glass-Fiber Board, Unfaced: ASTM C 612, Type IA; unfaced, with maximum flame-spread and smoke-developed indexes of 25 and 50, respectively, per ASTM E 84, passing ASTM E 136 for combustion characteristics. Nominal density of 2.25 lb/cu. ft. (36 kg/cu. m), thermal resistivity of 4.3 deg F x h x sq. ft./Btu x in. at 75 deg F (29.8 K x m/W at 24 deg C).

1. Manufacturers: Subject to compliance with requirements, provide products by one of the following:

a. CertainTeed Corporation.

b. Johns Manville; a Berkshire Hathaway company.

c. Owens Corning.

B. Glass-Fiber Board, Faced: ASTM C 612, Type IA; faced on one side with foil-scrim-kraft or foil-scrim-polyethylene vapor retarder, with maximum flame-spread and smoke-developed indexes of 25 and 50, respectively, per ASTM E 84. Nominal density of 6 lb/cu. ft. (96 kg/cu. m), thermal resistivity of not less than 4.34 deg F x h x sq. ft./Btu x in. at 75 deg F (30.1 K x m/W at 24 deg C).

1. Manufacturers: Subject to compliance with requirements, provide products by one of the following:

a. CertainTeed Corporation.

b. Johns Manville; a Berkshire Hathaway company.

c. Owens Corning.

NCRO - 201409 072100 - 5

2.3 THERMAL INSULATION

A. Roofing Insulation: Refer to Section 075200 Sheet Membrane Roofing (TPO) for extruded polystyrene board insulation.

2.4 ACCESSORIES

A. Insulation for Miscellaneous Voids:

1. Glass-Fiber Insulation: ASTM C 764, Type II, loose fill; with maximum flame-spread and smoke-developed indexes of 5, per ASTM E 84.

2. Spray Polyurethane Foam Insulation: ASTM C 1029, Type II, closed cell, with maximum flame-spread and smoke-developed indexes of 75 and 450, respectively, per ASTM E 84.

B. Insulation Anchors, Spindles, and Standoffs: As recommended by manufacturer.

C. Adhesive for Bonding Insulation: Product compatible with insulation and air and water barrier materials, and with demonstrated capability to bond insulation securely to substrates without damaging insulation and substrates.

D. Eave Ventilation Troughs: Preformed, rigid fiberboard or plastic sheets designed and sized to fit between roof framing members and to provide ventilation between insulated attic spaces and vented eaves.

PART 3 - EXECUTION

3.1 INSTALLATION, GENERAL

A. Comply with insulation manufacturer's written instructions applicable to products and applications.

B. Install insulation that is undamaged, dry, and unsoiled and that has not been left exposed to ice, rain, or snow at any time.

C. Extend insulation to envelop entire area to be insulated. Fit tightly around obstructions and fill voids with insulation. Remove projections that interfere with placement.

D. Provide sizes to fit applications and selected from manufacturer's standard thicknesses, widths, and lengths. Apply single layer of insulation units unless multiple layers are otherwise shown or required to make up total thickness or to achieve R-value.

NCRO - 201409 072100 - 6

3.2 INSTALLATION OF SLAB INSULATION

A. On vertical slab edge and foundation surfaces, set insulation units using manufacturer's recommended adhesive according to manufacturer's written instructions.

1. If not otherwise indicated, extend insulation a minimum of below exterior grade line.

B. On horizontal surfaces, loosely lay insulation units according to manufacturer's written instructions. Stagger end joints and tightly abut insulation units.

1. If not otherwise indicated, extend insulation a minimum of in from exterior walls.

3.3 INSTALLATION OF FOUNDATION WALL INSULATION

A. Butt panels together for tight fit.

B. Anchor Installation: Install board insulation on concrete substrates by adhesively attached, spindle-type insulation anchors.

C. Adhesive Installation: Install with adhesive or press into tacky waterproofing or dampproofing according to manufacturer's written instructions.

3.4 INSTALLATION OF CAVITY-WALL INSULATION

A. Foam-Plastic Board Insulation: Install pads of adhesive spaced approximately 24 inches (610

mm) o.c. both ways on inside face and as recommended by manufacturer. Fit courses of insulation between wall ties and other obstructions, with edges butted tightly in both directions.

Press units firmly against inside substrates.

1. Supplement adhesive attachment of insulation by securing boards with two-piece wall ties designed for this purpose and specified in Section 042000 "Unit Masonry."

3.5 INSTALLATION OF INSULATION IN FRAMED CONSTRUCTION

A. Blanket Insulation: Install in cavities formed by framing members according to the following requirements:

1. Use insulation widths and lengths that fill the cavities formed by framing members. If more than one length is required to fill the cavities, provide lengths that will produce a snug fit between ends.

2. Place insulation in cavities formed by framing members to produce a friction fit between edges of insulation and adjoining framing members.

3. Maintain 3-inch (76-mm) clearance of insulation around recessed lighting fixtures not rated for or protected from contact with insulation.

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4. Attics: Install eave ventilation troughs between roof framing members in insulated attic spaces at vented eaves.

5. For metal-framed wall cavities where cavity heights exceed 96 inches (2438 mm), support unfaced blankets mechanically and support faced blankets by taping flanges of insulation to flanges of metal studs.

6. For wood-framed construction, install blankets according to ASTM C 1320 and as follows:

a. With faced blankets having stapling flanges, lap blanket flange over flange of adjacent blanket to maintain continuity of vapor retarder once finish material is installed over it.

7. Vapor-Retarder-Faced Blankets: Tape joints and ruptures in vapor-retarder facings, and seal each continuous area of insulation to ensure airtight installation.

a. Exterior…