Wright-Patterson AFB FY20 Roofing Assessment.pdf

ROOF ASSESSMENT REPORT

Wrights-Patterson Air Force Base Commissary

2130 Sycamore Street

Building 1250, Suite 1

Kittyhawk Area, Wrights-Patterson AFB, Ohio 45433

January 21, 2021

Contract No. HDEC0319D0005

Task Order No. HDEC0320F0014

KZF Design, Inc. Project Number: 6740.01

Terracon Project Number FH206031

Prepared For:

Defense Commissary Agency (DeCA) by way of KZF Design, Inc.

Prepared By:

Terracon Consultants, Inc.

January 21, 2021

Defense Commissary Agency - CCN

Attn: Mr. John W. Dulin, PE

Office Phone: 804-734-8000, Ext. 48868

Email: john.dulin@decal.mil

Re: Roof Assessment Report

Wrights-Patterson AFB Commissary

2130 Sycamore Street

Building 1250, Suite 1

Kittyhawk Area, Wrights-Patterson AFB, Ohio 45433

Dear Mr. Dulin:

Terracon Consultants, Inc. (Terracon) has completed the roof assessment services on the above-referenced property. This assessment was authorized by KZF Design, Inc., via Delivery Order between KZF Design, Inc. and Terracon Consultants, Inc. dated February 13, 2020. This report presents the findings of the existing conditions and assessment of the building components that pertain to the installed low-sloped roofing system at the referenced property.

We appreciate the opportunity to provide service to you on this project. If you have any questions concerning this report, or if we may be of further service, please contact us.

Sincerely, Terracon Consultants Inc.

Lou Hall, PE, RRC

Senior Engineer

Facilities Services

Ryan Daugherty, RRO, REWO, CIT

Senior Project Manager

Facilities Engineering i

TABLE OF CONTENTS

1.0 INTRODUCTION

1.1 Purpose

1.2 Scope

1.3 Reliance

2.0 PROJECT INFORMATION

3.0 ROOF SECTION INFORMATION

4.0 CORE SAMPLE INFORMATION

5.0 ASBESTOS CONTAINING MATERIALS

6.0 DISCUSSION

7.0 REPAIR / REPLACEMENT RECOMMENDATION SUMMARY

8.0 LIMITATIONS

APPENDIX A – PHOTOGRAPHS

APPENDIX B – ROOF PLAN

APPENDIX C – ASBESTOS RESULTS FROM INDEPENDENT LABORATORY

APPENDIX D – COST ESTIMATES

Roof Assessment Report Wrights-Patterson AFB ▪ Kittyhawk Area, Wrights-Patterson AFB, Ohio January 21, 2021 ▪ Terracon Project Number FH206031

Responsive ■ Resourceful ■ Reliable 1

1.0 INTRODUCTION

1.1 Purpose

A roof assessment was performed on the low-sloped roof systems at Wrights-Patterson AFB

Commissary in the Kittyhawk Area of Wrights-Patterson AFB in Ohio on September 16, 2020. The assessment was performed to identify the existing roof systems, report deficiencies based on visual observations, and estimate the remaining service life based on our experience with these types of roof systems under similar exposure conditions.

The independent conclusions represent Terracon’s professional judgment based on the information and data available to us during the course of this assessment. Information regarding operations, conditions and test data provided by the client or their representative has been assumed to be correct and complete. Terracon’s evaluations, analyses and opinions are not representations regarding the design integrity, structural soundness or actual value of the property.

1.2 Scope

Our scope of services included:

▪ Field measure and record dimensions of roof areas and locate roof penetrations and other significant roof features.

▪ Take core-cuts and make repairs of each individual low-slope roof section to verify existing roof assembly and send samples of roof materials to laboratory for asbestos testing.

▪ Visually review roof system components to assess roof conditions.

▪ Photograph roof field, details and existing defects for documentation.

▪ Mark deficiencies on the roof and document locations on roof plan.

▪ Inventory and photograph HVAC equipment showing manufacturer labels.

▪ Written Condition Assessment Report.

Digital photographs identifying unique and typical features of the existing roofing systems and adjacent areas, a roof plan reflecting the requested information from our observations and asbestos results as provided by laboratory are included in the Appendices A, B and C, respectively of this report.

1.3 Reliance

The Report may be relied upon by DeCA/KZF, Inc. as a description of the current physical conditions of the subject roof system components, as of the date of our site visit, and with the knowledge that there are certain limitations and exceptions within the Report that are reflective of the scope of services.

This Report was prepared pursuant to the contract Terracon has with KZF Design, Inc. That contractual relationship included an exchange of information about the subject site that was unique and between Terracon and KZF Design, Inc. and serves as a basis upon which this report was prepared.

2.0 PROJECT INFORMATION

Site Contact:

Name: Mrs. Janna M. Henderson

Title: Secretary

Phone Number: 937-257-2060 x3347

Building Construction Type: Precast concrete wall panels over structural steel frame.

Building Use: Retail, Grocery, Warehouse

Number of Roof Sections Twelve (12)

Weather Conditions: Sunny, windy – upper 60s to low 80s

Date of Site Visit: September 16, 2020

3.0 ROOF SECTION INFORMATION

SECTION IDENTIFICATION AREA A (Refer to Roof Sketch for Identification)

1. Roof Type BUR with granular modified bitumen cap sheet single ply membrane.

2. Roof Area (Square Feet) Approximately 33,462

3. Roof Height Approximately 26’

4. Date Constructed Approximately 2006 (re-roof)

5. Accessibility Roof hatch from interior mezzanine staircase

6. Below Roof Activity Warehouse / Administrative

SECTION IDENTIFICATION AREA B (Refer to Roof Sketch for Identification)

1. Roof Type BUR with granular modified bitumen cap sheet single ply membrane.

2. Roof Area (Square Feet) Approximately 7,702

3. Roof Height Approximately 21’

4. Date Constructed Approximately 2006 (re-roof)

5. Accessibility Step ladder 5’ feet down from Roof Area A

6. Below Roof Activity Warehouse / Grocery

SECTION IDENTIFICATION AREA C (Refer to Roof Sketch for Identification)

1. Roof Type BUR with granular modified bitumen cap sheet single ply membrane.

2. Roof Area (Square Feet) Approximately 6,595

3. Roof Height Approximately 21’

4. Date Constructed Approximately 2006 (re-roof)

5. Accessibility Step ladder 5’ feet down from Roof Area A

6. Below Roof Activity Warehouse / Grocery / Administrative

SECTION IDENTIFICATION AREA D (Refer to Roof Sketch for Identification)

1. Roof Type BUR with granular modified bitumen cap sheet single ply membrane.

2. Roof Area (Square Feet) Approximately 20,765

3. Roof Height Approximately 26’

4. Date Constructed Approximately 2006 (re-roof)

5. Accessibility Step ladder 5’ feet up from Roof Area B

6. Below Roof Activity Warehouse / Grocery

SECTION IDENTIFICATION AREA E (Refer to Roof Sketch for Identification)

1. Roof Type BUR with granular modified bitumen cap sheet single ply membrane.

2. Roof Area (Square Feet) Approximately 17,050

3. Roof Height Approximately 26’

4. Date Constructed Approximately 2006 (re-roof)

5. Accessibility Adjacent and level with Roof Area D

6. Below Roof Activity Warehouse / Grocery

SECTION IDENTIFICATION AREA F (Refer to Roof Sketch for Identification)

1. Roof Type BUR with granular modified bitumen cap sheet single ply membrane.

2. Roof Area (Square Feet) Approximately 16,132

3. Roof Height Approximately 26’

4. Date Constructed Approximately 2006 (re-roof)

5. Accessibility Step ladder 5’ feet up from Roof Area B

6. Below Roof Activity Warehouse / Grocery / Administrative

SECTION IDENTIFICATION AREA G (Refer to Roof Sketch for Identification)

1. Roof Type BUR with granular modified bitumen cap sheet single ply membrane.

2. Roof Area (Square Feet) Approximately 16,165

3. Roof Height Approximately 26’

4. Date Constructed Approximately 2006 (re-roof)

5. Accessibility Adjacent and level with Roof Area F

6. Below Roof Activity Warehouse / Grocery / Administrative

SECTION IDENTIFICATION AREA H (Refer to Roof Sketch for Identification)

1. Roof Type BUR with granular modified bitumen cap sheet single ply membrane.

2. Roof Area (Square Feet) Approximately 7,974

3. Roof Height Approximately 16’

4. Date Constructed Approximately 2006 (re-roof)

5. Accessibility Extension ladder from grade

6. Below Roof Activity Warehouse / Grocery / Administrative

SECTION IDENTIFICATION AREA I (Refer to Roof Sketch for Identification)

1. Roof Type BUR with granular modified bitumen cap sheet single ply membrane.

2. Roof Area (Square Feet) Approximately 3,850

3. Roof Height Approximately 19’

4. Date Constructed Approximately 2006 (re-roof)

5. Accessibility Extension ladder from grade

6. Below Roof Activity Warehouse / Grocery / Administrative

SECTION IDENTIFICATION AREA J (Refer to Roof Sketch for Identification)

1. Roof Type BUR with granular modified bitumen cap sheet single ply membrane.

2. Roof Area (Square Feet) Approximately 120

3. Roof Height Approximately 12’

4. Date Constructed Approximately 2006 (re-roof)

5. Accessibility Extension ladder from grade

6. Below Roof Activity Entrance canopy

SECTION IDENTIFICATION AREA K (Refer to Roof Sketch for Identification)

1. Roof Type BUR with granular modified bitumen cap sheet single ply membrane.

2. Roof Area (Square Feet) Approximately 405

3. Roof Height Approximately 12’

4. Date Constructed Approximately 2006 (re-roof)

5. Accessibility Extension ladder from grade

6. Below Roof Activity Entrance canopy

SECTION IDENTIFICATION AREA L (Refer to Roof Sketch for Identification)

1. Roof Type BUR with granular modified bitumen cap sheet single ply membrane.

2. Roof Area (Square Feet) Approximately 42

3. Roof Height Approximately 12’

4. Date Constructed Approximately 2006 (re-roof)

5. Accessibility Extension ladder from grade

6. Below Roof Activity Entrance canopy in loading dock area

ROOF COMPONENT CONDITION

No.

Roof Section Components

Type/Description /Approximate

Age Quantity

Remaining Service Life

Condition Code (From Chart)

Comments

Roof System (Areas A - L)

BUR with Modified Bitumen cap sheet/ 14-15 years

130,262 SF 4-5 Years 4 Blisters observed in every roof area

2 Surfacing Factory-applied

Granules / 14-15 years

130,262 SF 4-5 Years 4 Wear and granule loss present

3 Insulation ISO Rigid / 14-15 years

130,262 SF 4-5 Years 5

Overlay atop BUR / canopy and roof ISO thickness vary.

See Core

Samples on Page 7 of this report

4 Base Wall Flashings Granulated modified bitumen / 14-15 years

821 LF 4-5 Years 4 (Roof Areas B, C, H, J, K, and

L only)

5 Curb Flashings

BUR with Mod Bit cap sheet and metal coping cap / 14-15 years

1,110 LF 4-5 Years 5 Rusted is present on coping caps

6 Walkways

24” x 24” modified bitumen

(adhered)/ 14-15 years

1,940 LF 4-5 Years 5 None

7 Roof Drains Primary Drains/

14-15 years 25 Primary 4-5 Years 6

6-inch drain leaders at drain bowls. No overflow drains.

8 Internal Drain Plumbing Drain Leaders/

14-15 years INA INA INA None

Interior Parapet Wall (Roof Area C and B only)

Concrete with

EPDM /

14-15 years 426 LF 4-5 Years 6

Counterflashing has openings at wall flashing interface

10 Perimeter Eave Metal Prefinished Metal gravel stop/ 14-15 years

2,540 LF 4-5 Years 5 Modified stripping cap sheet at eaves.

11 Expansion Joint

Prefinished Metal expansion joint coping covering/ 14-15 years

584 LF 4-5 Years 7

Approximately 12-inches tall and 8 inches wide

12 Pourable Sealer Pans Pre-molded metal/10 years 18 EA 4-5 Years 6

Conduit pans and equipment leg pans.

13 Counter Flashings

Mill Finished Aluminum &

Prefinished Metal/ 14-15 years

821 LF 4-5 Years 5 Roofs B, C, H, J, K, and L only

Soil Stacks/Pipe Penetration Flashings

Pre-molded boot flashing, and soft lead flashing/ 14-15 years

56 EA 4-5 Years 4

20 total Hot stack vent pipes. Rust on pipes.

ROOF COMPONENT CONDITION

No.

Roof Section Components

Type/Description /Approximate

Age Quantity

Remaining Service Life

Condition Code (From Chart)

Comments

15 Equipment Supports Prefabricate

Sealant Pans and boots

7 EA 4-5 Years 6

Galvanized steel frame with steel pedestal legs

16 Roof Hatches Pre-fabricated hinged hatch

1 15 years 6 In Roof Area A

INA = Information Not AvailableROOF COMPONENT CONDITION CODE RATING

Code Description Action Category

1 Failed Condition Immediate Replacement

2 End of Service Life Near Term Replacement

3 Poor Condition Immediate Maintenance Repair

4 Fair to Poor Repairable Condition Long-Term Maintenance Repair

Fair Condition, Defect Preventative

Maintenance Annual Maintenance Required

6 Performing Satisfactory, Minor Deterioration Annual Maintenance Required

7 Performing Satisfactory, Minor Signs of Aging No Maintenance Required

8 Satisfactory Condition No Maintenance Required

9 Good Condition, Early in Service Life No Maintenance Required

10 New Roof, No Defects No Maintenance Required

4.0 CORE SAMPLE INFORMATION

A two (2) inch core taken down to the roofing support deck was removed from the roof system.

System assembly as viewed from the support deck to the roofing membrane is as follows:

Area A

No moisture or other anomalies were observed.

• Metal Deck

• 1.5-inch polyisocyanurate insulation (adhered)

• 1.5-inch polyisocyanurate insulation (adhered)

• 5/8-inch fiberboard coverboard (adhered)

• 2-ply BUR Modified Bitumen membrane with granular cap sheet (adhered)

Area B

• 1.5-inch polyisocyanurate insulation (adhered)

• 5/8-inch fiberboard coverboard (adhered)

• 2-ply BUR Modified Bitumen membrane with granular cap sheet (adhered)

Area C

• 1.5-inch polyisocyanurate insulation (adhered)

Area D

• 1.5-inch polyisocyanurate insulation (adhered)

Area E

• 1.5-inch polyisocyanurate insulation (adhered)

Area F

• 1.5-inch polyisocyanurate insulation (adhered)

Area G

• 1.5-inch polyisocyanurate insulation (adhered)

Area H

Area I

Area J

Moisture was present in the core sample location.

Area K

Standing water was present in the core sample opening.

• 1-inch thick previous BUR roof assembly (adhered)

• Polysytrene insulation cover board (adhered)

• 5/8-inch fiberboard coverboard (adhered)

• 2-ply BUR Modified Bitumen membrane with granular cap sheet (adhered)

Area L

Moisture was present in the core sample location.

• 1-inch thick previous EPDM overlay roof assembly (adhered)

5.0 ASBESTOS CONTAINING MATERIALS

Materials collected from the core were sent to an independent laboratory for analysis to determine if asbestos containing materials are present. It should be noted this analysis is cursory and should not be considered inclusive to either confirm or deny the presence of asbestos but rather should be used to help identify where a further analysis is needed. Consultant assumes no responsibility for either confirmation or denial of the results. Results as provided from the independent laboratory are included as Appendix C in this Report.

6.0 DISCUSSION

The building’s low-slope roof systems were installed approximately 2008/2009 based on historical imagery on Google Earth and evidence of a re-roofing of the existing building in mid 2009. The roof systems appear to be in generally fair condition. Blisters are present on several roof areas, but are generally small in size and there do not appear to be open seams, save one location in Roof Area F. It is not known if the roof systems are covered by manufacturer’s warranties.

No active leaks were reported to Terracon during discussions with onsite personnel. Previous repairs have been made at several locations, with granule loss and where prevalent on walkpads, and perimeter eave conditions.

Curb flashings have had repairs recently and appear to be in generally good to fair condition. The field membrane is generally in good to fair condition. The EUL of the roof membrane can potentially be extended with the application of a UV protective coating at cap sheet locations with heavy granule loss, at the eave stripping membrane, and at blister repair locations.

Some items were observed to require repair and/or preventative maintenance. These items are identified on the attached Roof Plan.

7.0 REPAIR / REPLACEMENT RECOMMENDATION SUMMARY

No. Item Description EUL Quantity Unit Comments

Immediate repairs were identified. See Roof Plan for locations.

NA

See

Below na Repair ASAP.

2 Replacement reserves are required.

4-5

Years 130,262 SF See Appendices

REPAIRS

I-1 Seal open wall flashing and counterflashing horizontal seams on Roof Areas B and C

NA 127 LF

Fish mouths and failed sealant on vertical interior parapet walls

I-2 Repair large blister and split seams Roof Area F and investigate substrate for damage and leaks

NA 250 SF

Northwest corner of

Roof Area F

I-3 Remove materials and abandoned electrical conduit from Roof Area H, south entrance.

NA ! EA

Plywood, ladder, and metal conduit and wire

I-4 Repair open wall flashing at east corner of Roof H. NA 5 LF

Sealant has adhesive failure with the exterior wall. Water pathway behind flashing.

I-5 Clean silt, granules build up, vegetative growth around Roof H drain bowls.

NA 330 SF

Moss growth on south parapet and under Roof I overhang. 5 drains with heavy granule accumulation at drain cover.

I-6 Investigate electrical wire exiting drain cover and leader on Roof H and entering the ceiling panels under Roof Area I. Remove and install conduit.

NA 1 EA

Wire has no conduit and no securement.

Loose laid on roof and into drain.

RECOMMENDATIONS

R-1 Repair blisters at modified bitumen roof.

1-2 years 1 Allow

Repair blisters at seams.

R-22

Coat modified bitumen roof membrane for ultraviolet (UV) resistance at perimeter edge metal, walkways, curbs, penetrations and blister locations with granule loss.

1-2 years

18,050 SF

Provide UV protection to replace missing granules

R-3 Remove roof assemblies on three canopies 1-2 years

567 SF

Remove BUR at canopy Roof Areas, J, K, and L

R-4 Replace roof assemblies on canopies with Single-ply EPDM

1-2 years

567 SF Roofs J, K, and L

R-5 Remove BUR and Modified Bitumen roof assembly years

129,695 SF

EUL is assumed R-1 and R-2 are completed

R-6 Replace BUR roof with new EPDM single-ply membrane roof assembly years

129,695 SF

Excluding Roofs J, K, and L in R-3 above.

Recommended expenditures based on the observed conditions at the time of our review are itemized in the Cost Tables in Appendix D. Repair/replacement items of less than $5,000.00 may not be identified.

8.0 LIMITATIONS

The analysis and opinions presented in this report are based upon the information provided to us by our client, KZF Design, Inc. and data collected at the project site at the time of our site visit.

While additional conditions may exist that could alter our conclusions, we feel that reasonable efforts have been made to fairly and accurately evaluate the existing roof conditions on this building.

The limited asbestos sampling performed is not intended to serve as a comprehensive building asbestos survey for the presence of asbestos-containing materials (ACM) in all or most of the building systems, nor will it serve to adequately assess the presence of ACM in a building or portions thereof for pre-demolition or pre-renovation purposes, including the roof. Terracon recommends performing a thorough asbestos survey prior to disturbance of suspect ACM or renovation or demolition of the building or disturbance of roofing materials.

This report has been prepared for the exclusive use of the KZF Design, Inc. for specific application to the project discussed and has been prepared in accordance with generally accepted engineering practices. No warranties, either expressed or implied, are intended or made. In the event that information described in this document which others provided is incorrect, or if additional information becomes available, the conclusions and recommendations contained in this report shall not be considered valid unless Terracon reviews the information and either verifies or modifies the conclusions of this report in writing.

APPENDIX A

PHOTOGRAPHS

Roof Condition Assessment: Wrights-Patterson AFB Commissary – Photo Log Terracon Project No. FH206031 Date Photos Taken: September 16, 2020

Photo #1 Front Elevation. Photo #2 Overall view of Roof Area A.

Photo #3 Typical curb. Photo #4 Typical unit curb.

Photo #5 Typical pipe hot stack vent flashing and primary drain.

Photo #6 Typical HVAC conduit penetrations.

Photo #7 Roof hatch and typical vent pipe flashing.

Photo #8 Typical walk pads with heavy granule loss.

Photo #9 Roof A core sample location. Photo #10 4-inches from deck to top of modified bitumen cap sheet.

Photo #11 Typical eave edge metal gravel stop. Photo #12 Roof Area B.

Photo #13 Typical curb and blister. Photo #14 Open seam in wall flashing and counterflashing interface on Roofs B and C.

Photo #15 Overview of Roof Area C. Photo #16 Roof C interior of core to metal deck.

Photo #17 Overview of Roof Area D. Photo #18 Typical gravel edge metal detail.

Photo #19 Previous repairs and curbs, HVAC, and worn cap sheet locations.

Photo #20 Typical DCU unit.

Photo #21 Typical hot stack vent. Photo #22 Typical large exhaust hood curb.

Photo #23 Typical ACC unit on steel support structure atop equipment curb, Photo #24 Typical ACC conduit penetration enclosures.

Photo #25 Roof D core sample. 4.5-inches to deck.

Photo #26 Roof D Core sample.

Photo #27 Typical RTU Photo #28 Typical DCU on equipment curbs.

Photo #29 Overview of Roof Area E. Photo #30 Previous repairs at eave of Roof Area E.

Photo #31 Expansion joint beneath Main Electrical Panel Room that straddles Roof Areas D and E.

Photo #32 Typical pourable sealant pitch pan for support stand legs.

Photo #33 Overview of Roof Area E Core sample Photo #34 4-inch from deck to top of cap sheet on Roof Area E.

Photo #35 View inside Roof Area E core location to metal deck.

Photo #36 Typical expansion joint.

Photo #37 Overview of Roof Area F. Photo #38 Penetration missing flashing at hot stack.

Photo #39 Large blister and splitting seam at Roof Area northwest corner.

Photo #40 Additional photo of blister and split seam near expansion joint.

Photo #41 Additional photo of previous condition.

Photo #42 Overview of Roof Area D – loading entrance canopy.

Photo #43 Roof Area F core approximately 5-inches to metal deck.

Photo #44 View of metal deck in Roof F core location.

Photo #45 Typical pipe penetration. Photo #46 Typical primary drain.

Photo #47 Overview of Roof Area G. Photo #48 RT-3 unit.

Photo #49 Roof Area G core sample to metal deck.

Photo #50 Roof G 4.5-inch from cap sheet to metal deck.

Photo #51 Metal deck visible in Roof G core location.

Photo #52 Overview of Roof Area H.

Photo #53 Overview of Roof Area H Core sample.

Photo #54 BUR to metal deck on Roof Area H.

Photo #55 Silt build-up and vegetation growth on Roof H, beneath Roof I overhang. Typical Roof I pourable sealant pan.

Photo #56 Electrical wire exiting primary drain on Roof H, beneath the Roof I overhang. Silt and dirt blocking drain strainer.

Photo #57 Open wall flashing at east corner of Roof H.

Photo #58 Rusted abandoned conduit on Roof H.

Photo #59 Overview of Roof Area I Photo #60 Wire exiting drain bowl on Roof Area I.

Photo #61 Atypical edge metal condition on Roofs I-L

Photo #62 Overview of Roof Area J – Employee entrance canopy.

Photo #63 Overview of Roof Area K from grade Photo #64 Roof Area K.

Photo #65 Typical drain, conduit penetration and edge stop conditions on Roof K.

Photo #66 Modified bitumen is an overlay atop another roof assembly.

Photo #67 Overview of Roof Area L. Vegetative growth in corner.

Photo #68 Roof Area L core sample location patched in left of photo.

Photo #69 Previous repairs to canopy edge are present on Roof Area L.

Photo #70 Roof Area L core sample location with

4.5 inch BUR assembly to deck

APPENDIX B

ROOF PLAN

E J

E J

E J

E J

E J

E J

EJ EJ EJ EJ EJ EJ EJ EJ EJ EJ EJ EJ EJ EJ EJ EJ EJ EJ EJ EJ EJ EJ

E J

E J

E J

E J

E J

E J

E J

E J

SV

AB

SV

SV

DESIGNED BY:

SCALE:

APPVD. BY:

DRAWN BY:

DATE:

SHEET NO.:

JOB NO.

OF

BY DESCRIPTIONDATEREV.

ACAD NO.2701 WESTPORT ROAD CHARLOTTE, NC

PH. 704.597.9000

Consulting Engineers and Scientists

WRIGHT PATTERSON AFB, OH 45433

FH206031

Jan. 4, 2021

NTS

XXX

IMM

DECA ROOF ASSESSMENT SURVEY

2130 SYCAMORE ST, STE 1, BLDG 1250

WRIGHT-PATTERSON AFB COMMISSARY

N

198'

168'-11" 356'-7"

169'

60'-6" 98'

221'-6"

104'-6"

228'

LEGEND

DEFICIENCY NOTE GUTTER PITCH PAN

EQUIPMENT IDENTIFIER HVAC EQUIPMENT SANITARY VENT

CORE SAMPLE LOCATION ROOF HATCH MISC. VENT

SLOPE DIRECTION LADDER SCREEN WALL

RIDGE CURB MOUNTED EQUIPMENT SATELLITE OR ANTENNA

ROOF DRAIN SLEEPER MOUNTED EQUIPMENT EXPANSION JOINT

OVERFLOW ROOF DRAIN HEAT VENT GAS PIPE PENETRATION

SCUPPER EXHAUST FAN

# HVAC

SV

EJ

GP

TWS

REPAIRS

1. SEAL OPEN HORIZONTAL

SEAMS ON WALL FLASHING

AND COUNTERFLASHING

INTERFACES ON THE EAST

INTERIOR PARAPET WALLS OF

ROOF AREAS B & C.

2. REPAIR LARGE BLISTER IN

ROOF AREA F.

3. REMOVE DEBRIS AND

ABANDONED CONDUIT FROM

ROOF AREA H.

4. REPAIR OPEN WALL FLASHING

SEAM.

5. CLEAN SILT AND VEGETATIVE

GROWTH FROM DRAIN BOWL

AND INVESTIGATE

ELECTRICAL WIRE EXISTING

DRAIN BOWL COVER.

ROOF AREA A

ROOF AREA K8 ROOF AREA J

RTU-1-RA

1PU-001-R

DS-004-R

DHU-2

ROOF AREA B

ROOF AREA C

ROOF AREA L9

ROOF AREA D

DHU-3

DHU-5

ACC-6

ACC-4

ACC-2

ACC-3

RTU-7-RA

ACC-5

RT-5

RTU-6-RA

DHU-1

ROOF AREA E

RT-8

DCU-4

ROOF AREA F ROOF AREA G

ROOF AREA H

ROOF AREA I

RTU-4-RA

CU-65

DCU-2

RTDF-1 RT-3 RTDF-2

DCU-7

DCU-8

APPENDIX C

ASBESTOS RESULTS FROM INDEPENDENT LABORATORY

Bulk Asbestos Analysis By Polarized Light Microscopy

EPA Method: 600/R-93/116 and 40 CFR, Part 763, Subpart E, App.E

Wright - Patterson - FH206031Project:

Sample ID

Lab Sample ID

Description

Lab Notes Asbestos Fibrous

Components Non-Fibrous Components

Attributes

Treatment

Erick HutsonAttn:Customer: Terracon 2701 Westport Rd Charlotte, NC 28208

Analysis ID: 71951622_PLM

Date Reported: 10/8/2020

Date Received: 10/8/2020

Lab Order ID: 71951622

None Detected 1-1 - A

Roof Core roofing

Black, White Non Fibrous Heterogeneous

Dissolved71951622PLM_1

Fiber Glass Other 20% 80%

None Detected 1-1 - B

Roof Core paper

Brown Fibrous Homogeneous

Ashed71951622PLM_13

Cellulose Other 60% 40%

None Detected 1-2 - A

Roof Core roofing

Black, White Non Fibrous Heterogeneous

Dissolved71951622PLM_2

Fiber Glass Other 20% 80%

None Detected 1-2 - B

Roof Core paper

Brown Fibrous Homogeneous

Ashed71951622PLM_14

Cellulose Other 60% 40%

None Detected 1-2 - C

Roof Core foam

Cream Non Fibrous Homogeneous

Ashed71951622PLM_15

Other 100%

None Detected 1-3 - A

Roof Core roofing

Black, White Non Fibrous Heterogeneous

Dissolved71951622PLM_3

Fiber Glass Other 20% 80%

None Detected 1-3 - B

Roof Core paper

Brown Fibrous Homogeneous

Ashed71951622PLM_16

Cellulose Other 60% 40%

None Detected 1-3 - C

Roof Core foam

Cream Non Fibrous Homogeneous

Ashed71951622PLM_17

Other 100%

Disclaimer: Due to the nature of the EPA 600 method, asbestos may not be detected in samples containing low levels of asbestos. We strongly recommend that analysis of floor tiles, vermiculite, and/or heterogeneous soil samples be conducted by TEM for confirmation of “None Detected” by PLM. This report relates only to the samples tested and may not be reproduced, except in full, without the written approval of SAI. This report may not be used by the client to claim product endorsement by NVLAP or any other agency of the U.S. government. Analytical uncertainty available upon request. Scientific Analytical Institute participates in the NVLAP Proficiency Testing program. Unless otherwise noted blank sample correction was not performed. Estimated MDL is 0.1%.

Approved SignatoryAnalyst

Scientific Analytical Institute, Inc. 4604 Dundas Dr. Greensboro, NC 27407 (336) 292-3888

Yanelis Delgado (35)

P-F-002 r15 1/16/2021

EPA Method: 600/R-93/116 and 40 CFR, Part 763, Subpart E, App.E

Wright - Patterson - FH206031Project:

Sample ID

Lab Sample ID

Description

Lab Notes Asbestos Fibrous

Components Non-Fibrous Components

Attributes

Treatment

Erick HutsonAttn:Customer: Terracon 2701 Westport Rd Charlotte, NC 28208

Analysis ID: 71951622_PLM

Date Reported: 10/8/2020

Date Received: 10/8/2020

Lab Order ID: 71951622

None Detected 1-4 - A

Roof Core roofing

Black, White Non Fibrous Heterogeneous

Dissolved71951622PLM_4

Cellulose Other 15% 85%

None Detected 1-4 - B

Roof Core paper

Brown Fibrous Homogeneous

Ashed71951622PLM_18

Cellulose Other 60% 40%

None Detected 1-4 - C

Roof Core foam

Cream Non Fibrous Homogeneous

Ashed71951622PLM_19

Other 100%

None Detected 1-5 - A

Roof Core roofing

Black, White Non Fibrous Heterogeneous

Dissolved71951622PLM_5

Cellulose Other 15% 85%

None Detected 1-5 - B

Roof Core paper

Brown Fibrous Homogeneous

Ashed71951622PLM_20

Cellulose Other 60% 40%

None Detected 1-5 - C

Roof Core foam

Cream Non Fibrous Homogeneous

Ashed71951622PLM_21

Other 100%

None Detected 1-6 - A

Roof Core roofing

Black, White Non Fibrous Heterogeneous

Dissolved71951622PLM_6

Fiber Glass Other 20% 80%

None Detected 1-6 - B

Roof Core insulation

Yellow Fibrous Homogeneous

Teased71951622PLM_22

Fiber Glass Other 90% 10%

Disclaimer: Due to the nature of the EPA 600 method, asbestos may not be detected in samples containing low levels of asbestos. We strongly recommend that analysis of floor tiles, vermiculite, and/or heterogeneous soil samples be conducted by TEM for confirmation of “None Detected” by PLM. This report relates only to the samples tested and may not be reproduced, except in full, without the written approval of SAI. This report may not be used by the client to claim product endorsement by NVLAP or any other agency of the U.S. government. Analytical uncertainty available upon request. Scientific Analytical Institute participates in the NVLAP Proficiency Testing program. Unless otherwise noted blank sample correction was not performed. Estimated MDL is 0.1%.

Approved SignatoryAnalyst

Scientific Analytical Institute, Inc. 4604 Dundas Dr. Greensboro, NC 27407 (336) 292-3888

EPA Method: 600/R-93/116 and 40 CFR, Part 763, Subpart E, App.E

Wright - Patterson - FH206031Project:

Sample ID

Lab Sample ID

Description

Lab Notes Asbestos Fibrous

Components Non-Fibrous Components

Attributes

Treatment

Erick HutsonAttn:Customer: Terracon 2701 Westport Rd Charlotte, NC 28208

Analysis ID: 71951622_PLM

Date Reported: 10/8/2020

Date Received: 10/8/2020

Lab Order ID: 71951622

None Detected 1-7 - A

Roof Core roofing

Black Non Fibrous Heterogeneous

Dissolved71951622PLM_7

Cellulose Other 15% 85%

None Detected 1-7 - B

Roof Core paper

Black, Brown Fibrous Heterogeneous

Ashed71951622PLM_23

Cellulose Other 50% 50%

None Detected 1-7 - C

Roof Core foam 1

Cream Non Fibrous Homogeneous

Ashed71951622PLM_24

Other 100%

None Detected 1-7 - D

Roof Core foam 2

Green Non Fibrous Homogeneous

Ashed71951622PLM_25

Other 100%

None Detected 1-8 - A

Roof Core roofing

Black, White Non Fibrous Heterogeneous

Dissolved71951622PLM_8

Fiber Glass Other 20% 80%

None Detected 1-8 - B

Roof Core paper

Brown Fibrous Homogeneous

Ashed71951622PLM_26

Cellulose Other 60% 40%

None Detected 1-8 - C

Roof Core foam

Cream Non Fibrous Homogeneous

Ashed71951622PLM_27

Other 100%

None Detected 1-9 - A

Roof Core roofing

Black, White Non Fibrous Heterogeneous

Dissolved71951622PLM_9

Fiber Glass Other 20% 80%

Disclaimer: Due to the nature of the EPA 600 method, asbestos may not be detected in samples containing low levels of asbestos. We strongly recommend that analysis of floor tiles, vermiculite, and/or heterogeneous soil samples be conducted by TEM for confirmation of “None Detected” by PLM. This report relates only to the samples tested and may not be reproduced, except in full, without the written approval of SAI. This report may not be used by the client to claim product endorsement by NVLAP or any other agency of the U.S. government. Analytical uncertainty available upon request. Scientific Analytical Institute participates in the NVLAP Proficiency Testing program. Unless otherwise noted blank sample correction was not performed. Estimated MDL is 0.1%.

Approved SignatoryAnalyst

Scientific Analytical Institute, Inc. 4604 Dundas Dr. Greensboro, NC 27407 (336) 292-3888

EPA Method: 600/R-93/116 and 40 CFR, Part 763, Subpart E, App.E

Wright - Patterson - FH206031Project:

Sample ID

Lab Sample ID

Description

Lab Notes Asbestos Fibrous

Components Non-Fibrous Components

Attributes

Treatment

Erick HutsonAttn:Customer: Terracon 2701 Westport Rd Charlotte, NC 28208

Analysis ID: 71951622_PLM

Date Reported: 10/8/2020

Date Received: 10/8/2020

Lab Order ID: 71951622

None Detected 1-9 - B

Roof Core paper

Brown Fibrous Homogeneous

Ashed71951622PLM_28

Cellulose Other 60% 40%

None Detected 1-9 - C

Roof Core foam

Cream Non Fibrous Homogeneous

Ashed71951622PLM_29

Other 100%

None Detected 1-10 - A

Roof Core roofing

Black, White Non Fibrous Heterogeneous

Dissolved71951622PLM_10

Fiber Glass Other 20% 80%

None Detected 1-10 - B

Roof Core paper

Brown Fibrous Homogeneous

Ashed71951622PLM_30

Cellulose Other 60% 40%

None Detected 1-10 - C

Roof Core foam

Cream Non Fibrous Homogeneous

Ashed71951622PLM_31

Other 100%

None Detected 1-11 - A

Roof Core roofing

Black, White Non Fibrous Heterogeneous

Dissolved71951622PLM_11

Fiber Glass Other 20% 80%

None Detected 1-11 - B

Roof Core paper

Brown Fibrous Homogeneous

Ashed71951622PLM_32

Cellulose Other 60% 40%

None Detected 1-11 - C

Roof Core foam

Cream Non Fibrous Homogeneous

Ashed71951622PLM_33

Other 100%

Disclaimer: Due to the nature of the EPA 600 method, asbestos may not be detected in samples containing low levels of asbestos. We strongly recommend that analysis of floor tiles, vermiculite, and/or heterogeneous soil samples be conducted by TEM for confirmation of “None Detected” by PLM. This report relates only to the samples tested and may not be reproduced, except in full, without the written approval of SAI. This report may not be used by the client to claim product endorsement by NVLAP or any other agency of the U.S. government. Analytical uncertainty available upon request. Scientific Analytical Institute participates in the NVLAP Proficiency Testing program. Unless otherwise noted blank sample correction was not performed. Estimated MDL is 0.1%.

Approved SignatoryAnalyst

Scientific Analytical Institute, Inc. 4604 Dundas Dr. Greensboro, NC 27407 (336) 292-3888

EPA Method: 600/R-93/116 and 40 CFR, Part 763, Subpart E, App.E

Wright - Patterson - FH206031Project:

Sample ID

Lab Sample ID

Description

Lab Notes Asbestos Fibrous

Components Non-Fibrous Components

Attributes

Treatment

Erick HutsonAttn:Customer: Terracon 2701 Westport Rd Charlotte, NC 28208

Analysis ID: 71951622_PLM

Date Reported: 10/8/2020

Date Received: 10/8/2020

Lab Order ID: 71951622

None Detected 1-12 - A

Roof Core roofing

Black, White Non Fibrous Heterogeneous

Dissolved71951622PLM_12

Fiber Glass Other 20% 80%

None Detected 1-12 - B

Roof Core paper

Brown Fibrous Homogeneous

Ashed71951622PLM_34

Cellulose Other 60% 40%

None Detected 1-12 - C

Roof Core foam

Cream Non Fibrous Homogeneous

Ashed71951622PLM_35

Other 100%

Disclaimer: Due to the nature of the EPA 600 method, asbestos may not be detected in samples containing low levels of asbestos. We strongly recommend that analysis of floor tiles, vermiculite, and/or heterogeneous soil samples be conducted by TEM for confirmation of “None Detected” by PLM. This report relates only to the samples tested and may not be reproduced, except in full, without the written approval of SAI. This report may not be used by the client to claim product endorsement by NVLAP or any other agency of the U.S. government. Analytical uncertainty available upon request. Scientific Analytical Institute participates in the NVLAP Proficiency Testing program. Unless otherwise noted blank sample correction was not performed. Estimated MDL is 0.1%.

Approved SignatoryAnalyst

Scientific Analytical Institute, Inc. 4604 Dundas Dr. Greensboro, NC 27407 (336) 292-3888

Scientific Analytical Institute 4604 Dundas Dr. Greensboro, NC 27407

Phone: 336.292.3888 Fax: 336.292.3313 www.sailab.com lab@sailab.com

Contact Iliforniatio'b .· Company: Terracon Contact:

Phone 0: 704-509~1777

Fax0:

Email IZ]:

' . • ' 90 Min. 48 Hours

Contact: 3 Hours • 72 Hours

Address: 6 Hours • 96 Hours

CfvVh,<_., _ 12 Hours • 120 Hours D 24 Hours I& 144+Hours D

PO Number:

Project Name/Number: &v

Lab Use Only /{\f1 ~\· ~1 'L Lab Order lD:

1 J ~ W tl- 1 Client Code: ____ .-..c--

. Asb~j)s_Test Types

PLM EPA 600/R-93/116 (PLM) ~

Positive stop D PLM Point Count 400 (PT4) • PLM Point Count l 000 (PTM) • PCM NIOSH 7400-A Rules (PCM) •

B Rules (PCB) 0 TWA (PTA) 0

TEM AHERA (AHE) •

TEM Level II (LIi) •

TEM NIOSH 7402 (TN!) •

TEM Bulk Qualitative (TBL) • TEM Bulk Chatfield (TBS) • TEM Bulk Quantitative (TBQ) • TEM Wipe ASTM D64'80s05 • ,, TEM Microvac ASTM1D5755-09 • TEM Water EPA 100.2 (TWI) • Other: •

Deseriptjon/L~~f P.IJ~, Vol1;1,n¢/ Afea Sample ID# Comments .,·, . ,. ·-.

~~ c,,~/ac,c_ ' I

I I rll Ace epteo u

111"!1- ,. __ -a \ \ n-..- , Total# of Samples

Date/Time o· 3 / ·

Page of

~ 7EXP~

llerracan

Inspector: ..;..N.::../A:..:.... ___________ _ License: N/A

Date: 9/18/2020

Sample No. Homogeneous Material Description

1-1 Roof Core 1-2 Roof Core 1-3 Roof Core 1-4 Roof Core 1-5 Roof Core 1-6 Roof Core 1-7 Roof Core 1-8 Roof Core 1-9 Roof Core

1-10 Roof Core 1-11 Roof Core 1-12 Roof Core

Asbestos Survey Form

Sample Location

Small Canopy RoofD

Roof H Roof A Roof I

Pharmacy Canopy

Front Building Canopy RoofB Roof F

Roof E I

RoofC

RoofG

Floor Condition

1 I (;]'01 l/JL l

Job Name: Wright Patterson Job Number: FH206031 - Task 14

Friable/ Quantity Non-Friable Lab Results