AQ_F_1800377_20230105_PRMT_CmbPrmtFile_R14

:.STA`E x
ROY COOPER � .,>'�
Governor• Q ^r
ELIZABETH S.BISER � ��j; (; 0=)
Secretary2c
MICHAEL A.ABRACZINSKAS NORTH CAROLINA
Director Environmental Quality
January 5, 2023
Mr. Gregory Horton
Plant Manager
CertainTeed dba Millwork&Panel LLC
P. O. Box,760
Claremont,NC 28610
Subject: Air Permit No. 06650R14
CertainTeed dba Millwork&Panel LLC
Claremont, Catawba County, North Carolina
Permit Class: Synthetic Minor
Facility ID# 1800377
Dear Mr. Horton:
In accordance with your completed application received December•7, 2022, we are
forwarding herewith Permit No. 06650R14 to CertainTeed dba Millwork &Panel LLC, Claremont,
Catawba County,North Carolina for the construction and operation of air emissions sources or air
cleaning devices and appurtenances. Additionally, any emissions activities determined from your air
permit application as meeting the exemption requirements contained in 15A NCAC 2Q .0102 have
been listed for information purposes as an "ATTACHMENT" to the enclosed air permit.
If any parts, requirements, or limitations contained in this permit are unacceptable to you, '
you have the right to file a petition for contested case hearing in the North Carolina Office of
Administrative Hearings. Information regarding the right, procedure, and time limit for permittees
and other persons aggrieved to file such a petition is contained in the attached "Notice Regarding
the Right to Contest a Division of Air Quality Permit Decision."
Unless exempted by a condition of this permit or the regulations, construction of new
air pollution sources or air cleaning devices, or modifications to the sources or air cleaning
devices described in this permit must be covered under a permit issued by the Division of Air
Quality prior to construction. Failure to do so is a violation of G.S. 143-215.108 and may
subject the Permittee to civil or criminal penalties as described in G.S. 143-215.114A and 143-
215.114B.
This permit shall be effective from January 5, 2023 until December 31, 2030, is
nontransferable to future owners and operators, and shall be subject to the conditions and limitations
as specified therein.
— North Carolina Department of Environmental Quality I Division of Air Quality
Mooresville Regional Office 1 610 East Center Avenue,Suite 301 1 Mooresville,NC 26115
Nl?!iT?l:fiFpl.INh ��
oepattmane orEmraommer.Wiquacrr 704.663.1699 T 1 704.663.6040 F

Gregory Horton
January 5, 2023
Page 2
Changes have been made to the permit stipulations. The Permittee is responsible for
carefully reading the entire permit and evaluating the requirements of each permit
stipulation.The Permittee shall comply with all terms, conditions, requirements, limitations
and restrictions set forth in this permit. Noncompliance with any permit condition is grounds
for enforcement action, for permit termination, revocation and reissuance, or modification, or
for denial of a permit renewal application. Specific changes and additions are summarized
below(note: this list may not include all changes and additions):
• A rule change that became effective November 1, 2016, removed the"state-wide"
applicability of 2D .0958, and it now only applies to the counties/townships listed in
the regulation. This facility is not located in one of the areas still subject to this -
regulation; therefore, the condition for 2D .0958 is being removed from the permit.
• Condition 15A NCAC 2D .1806 "Control.and Prohibition of Odorous Emissions"
was added to the permit per DAQ policy.
Should you have any questions concerning this matter, please contact Jennifer Manning at 704-235-
2224.
Sincerely,
Melinda Wolanin, Regional Supervisor
Division of Air Quality,NC DEQ
JAM
Enclosures
c: Laserfiche
https://ncconnect.sharepoint.com/sites/DAQ-MRO/Counties/CATAWBA/00377/Rl4_PERMIT.docx

NOTICE REGARDING THE RIGHT TO CONTEST A DIVISION OF AIR QUALITY
PERMIT DECISION
Right of the Permit Applicant or Permittee to File a Contested Case: Pursuant to NCGS 143-
215.108(e), a permit applicant or permittee who is dissatisfied with the Division of Air Quality's
decision on a permit application may commence a contested case by filing a petition under
NCGS 150B-23 in the Office of Administrative Hearings within 30 days after the Division
notifies the applicant or permittee of its decision. If the applicant or permittee does not file a
petition within the required time, the Division's decision on the application is final and is not
subject to review. The filing of a petition will stay the Division's decision until resolution of the
contested case.
Right of Other Persons Aggrieved to File a Contested Case: Pursuant to NCGS 143-
215.108(el), a person other than an applicant or permittee who is a person aggrieved by the
Division's decision on a permit application may commence a contested case by filing a petition
under NCGS 150B-23 within 30 days after the Division provides notice of its decision on a
permit application, as provided in NCGS 150B-23(f), or by posting the decision on a publicly
available Web site. The filing of a petition under this subsection does not stay the Division's
decision except as ordered by the administrative law judge under NCGS 150B-33(b).
General Filing Instructions: A petition for contested case hearing must be in the form of a
written petition, conforming to NCGS 15013-23, and filed with the Office of Administrative
Hearings, 1711 New Hope Church Road, Raleigh NC, 27609, along with a fee in an amount
provided in NCGS 15013-23.2. A petition for contested case hearing form may be obtained upon
request from the Office of Administrative Hearings or on its website at
https://www.oah.nc.gov/hearings-division/filing/hearing-forms. Additional specific instructions
for filing a petition are set forth at 26 NCAC Chapter 03.
Service Instructions: A party filing a contested case is required to serve a copy of the petition,
by any means authorized under 26 NCAC 03 .0102, on the process agent for the Department of
Environmental Quality:
William F. Lane, General Counsel
North Carolina Department of Environmental Quality
1601 Mail Service Center
Raleigh, North Carolina 27699-1601
If the party filing the petition is a person aggrieved other than the permittee or permit applicant,
the party must also serve the permittee in accordance with NCGS 15013-23(a).
Additional information is available at hops://www.oah.ne.gov/hearings-division/hearing-
process/filing-contested-case. Please contact the OAH at 984-236-18.50 or
[e-mail] with all questions regarding the filing fee and/or the details of the
filing process.

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NORTH CAROLINA ENVIRONMENTAL MANAGEMENT COMMISSION
DEPARTMENT OF ENVIRONMENTAL QUALITY
DIVISION OF AIR QUALITY
AIR PERMIT NO. 06650R14
Issue Date: January 5, 2023 Effective Date: January 5, 2023
Expiration Date: December 31, 2030 Replaces Permit: 06650R13
To construct and operate air emission source(s) and/or air cleaning device(s), and for the
discharge of the associated air contaminants into the atmosphere in accordance with the provisions
of Article 21B of Chapter 143, General Statutes of North Carolina(NCGS) as amended, and other
applicable Laws, Rules and Regulations,
CertainTeed dba Millwork& Panel LLC
2651 Penny Road
Claremont, Catawba County,North Carolina
Permit Class: Synthetic Minor
Facility ID# 1800377
(the Permittee) is hereby authorized to construct and operate the air emissions sources and/or air
cleaning devices and appurtenances described below:
Emission Emission Source E Control Control System
Source ID. Description System ID Description
IES-1001 PVC resin vacuum railcar FR-1001 filter receiver(183 square
unloading system(25,000 feet of filter area)
pounds per hour maximum
capacity)
IES-1011 PVC storage silo(12,500 BV-1011 in vent filter(184 square
pounds per hour maximum feet of filter area)
j capacity)
ES-1012 PVC storage silo(12,500 1BV-1012 in vent filter(184 square
rounds per hour maximum [ feet of filter area)
capacity)_.__..__ ..._.....
{ES-1015a calcium carbonate silo(20 [BV-1015a bin vent filter(183 square ' f
{ tons per hour fill rate) Ifeet of filter area) j)
IES-1015b calcium carbonate pneumatic 1BV-1015b bin vent filter(226 square
conveyor(2 tons per hour feet of filter area)
maximum unloading rate)
�ES-2001 vacuum resin conveying IFR-2001 bagfilter(183 square feet of
system(19,50C pounds per filter area)
hour maximum capacity) j
1

Permit No. 06650R14
Page 2
Emission Emission Source Control Control System
J Source ID Description j System ID Description
ES-3001vacuum compound !FR-3011,FR-3012,FR- twenty(20)bagfilters(ID
conveying system(51,000 3021,FR-3022,FR-3031, Nos.FR-3011,FR-3012,
pounds per hour capacity) FR-3032,FR-3041,FR- FR-3021,FR-3022,FR-
consisting of seventeen(17) 3042,FR-3051,FR-3052, 3 03 1,FR-3032,FR-3041,
vacuum conveying lines FR-3062,FR-3072,FR FR-3042,FR-3051,FR-
j 3082,FR-3092,FR-3102, 3052,FR-3062,FR-3072,
FR-3061,FR-3071,FR- FR-3082,FR-3092,and FR-
1 3081,FR-3091,FR-3101 3102,FR-3061,FR-3071,
FR-3081,FR-3091,and FR-
3 101; 183.4 square feet of
1 filter area,each)installed in
parallel
IES-6001 cool mixer(24,000 pounds !FR-6001 agfilter(183.4 square feet
per hour maximum capacity) ( of filter area)
IES-6002 cool mixer(13,550 pounds FR-6002 agfilter(183.4 square feet
E per hour maximum capacity) of filter area)
'ES-6003 lending heat mixer(24,000 1 FR-6003 agfilter(183.4 square feet
pounds per hour maximum of filter area)
process rate)
ES-7001 glue'application operations N/A N/A
ES-8001 barcode labeling system 1
including fifteen(15)ink jet N/A N/A
print heads installed on ten
(10)extrusion lines
DES-8002 PVC grinding operation FR-8002 agfilter(1,530 square feet
(3,000 pounds per hour of filter area)
maximum process rate)
in accordance with the completed application 1800377.22A received December 7, 2022 including
any plans,specifications,previous applications, and other supporting data, all of which are filed
with the Department of Environmental Quality, Division of Air Quality (DAQ) and are incorporated
as part of this permit.
This permit is subject to the following specified conditions and limitations including any
TESTING, REPORTING, OR MONITORING REQUIREMENTS:
A. SPECIFIC CONDITIONS AND LIMITATIONS
1. Any air emission sources or control devices authorized to construct and operate above must
be operated and maintained in accordance with the provisions contained herein. The
Permittee shall comply with applicable Environmental Management Commission
Regulations, including Title 15A North Carolina Administrative Code (NCAC), Subchapter
2D .0202, 2D .0515, 2D .0521, 2D .0535, 2D .0540, 2D .1806, 2Q .0102, 2Q .0315 and 2Q
.0711.
1

Permit No. 06650R14 .
Page 3
2. PERMIT RENEWAL AND EMISSION INVENTORY REQUIREMENT -The Permittee,
at least 90 days prior to the expiration date of this permit, shall request permit renewal by
letter in accordance with 15A NCAC 2Q .0304(d) and(f). Pursuant to 15A NCAC 2Q
.0203(i), no permit application fee is required for renewal of an existing air permit(without
a modification request). The renewal request (with application Form A) should be submitted
to the Regional Supervisor, DAQ. Also, at least 90 days prior to the expiration date of this
permit,the Permittee shall submit the air pollution emission inventory report(with
Certification Sheet) in accordance with 15A NCAC 2D .0202, pursuant to N.C. General
Statute 143 215.65. The report shall be submitted to the Regional Supervisor, DAQ and shall
document air pollutants emitted for the 2029 calendar year.
3. PARTICULATE CONTROL REQUIREMENT-As required by 15A NCAC 2D .0515
"Particulates from Miscellaneous Industrial Processes," particulate matter emissions from
PVC resin railcar unloading system(ID No. ES-1001), PVC storage silo (ID No. ES-1011),
PVC storage silo (ID No. ES-1012), calcium carbonate silo (ID No. ES-1015a), calcium
carbonate pneumatic conveyor(ID No. ES-1015b), vacuum resin conveying system (ID No.
ES-2001), vacuum compound conveying system (ID No. ES-3001), cool mixer(ID No. ES-
6001), cool mixer(ID No. ES-6002),blending heat mixer (ID No. ES-6003) and PVC
grinding operation(ID No. ES-8002) shall not exceed allowable emission rates. The
allowable emission rates are, as defined in 15A NCAC 2D .0515, a function of the process
weight rate and shall be determined by the following equation(s), where P is the process
throughput rate in tons per hour (tons/hr) and E is the allowable emission rate in pounds per
hour (lbs/hr).
E =4.10 * (P) 0 67 for P <=30 tons/hr, or
E =55 * (P) 0•11-40 for P>30 tons/hr
4. VISIBLE EMISSIONS CONTROL REQUIREMENT -As required by 15A NCAC 2D
.0521 "Control of Visible Emissions," visible emissions from the emission sources,
manufactured after July 1, 1971, shall not be more than 20 percent opacity when averaged
over a six-minute period, except that six-minute periods averaging not more than 87 percent
opacity may occur not more than once in any hour nor more than four times in any 24-hour
period. However, sources which must comply with a visible emissions standard in 15A
NCAC 2D .0524 "New Source Performance Standards" or .1110 "National Emission
Standards for Hazardous Air Pollutants" shall meet that standard instead of the 2D .0521
visible emissions standard.
5. NOTIFICATION REQUIREMENT -As required by 15A NCAC 2D .0535,the Permittee of
a source of excess emissions that last for more than four hours and that results from a
malfunction, a breakdown of process or control equipment or any other abnormal
conditions, shall:
a. Notify the Director or his designee of any such occurrence by 9:00 a.m. Eastern time
of the Division's next business day of becoming aware of the occurrence and
describe:

Permit No. 06650R14
Page 4
i. the name and location of the facility,
ii. the nature and cause of the malfunction or breakdown,
iii. the time when the malfunction or breakdown is first observed,
iv. the expected duration, and
V. an estimated rate of emissions.
b. Notify the Director or his designee immediately when the corrective measures have
been accomplished.
This reporting requirement does not allow the operation of the facility in excess of
Environmental Management Commission Regulations.
6. FUGITIVE DUST CONTROL REQUIREMENT -As required by 15A NCAC 2D .0540
"Particulates from Fugitive Dust Emission Sources," the Permittee shall not cause or allow
fugitive dust emissions to cause or contribute to substantive complaints or excess visible
emissions beyond the property boundary. If substantive complaints are received or excessive
fugitive dust emissions from the facility are observed beyond the property boundaries for six
minutes in any one hour (using Reference Method 22 in 40 CFR, Appendix A), the owner or
operator may be required to submit a fugitive dust plan as described in 2D .0540(f).
"Fugitive dust emissions" means particulate matter that does not pass through a process
stack or vent and that is generated within plant property boundaries from activities such as:
unloading and loading areas, process areas stockpiles, stock pile working,plant parking lots,
and plant roads (including access roads and-haul roads).
7. CONTROL AND PROHIBITION OF ODOROUS EMISSIONS -As required by 15A
NCAC 2D .1806 "Control and Prohibition of Odorous Emissions" the Permittee shall not
operate the facility without implementing management practices or installing and operating
odor control equipment sufficient to prevent odorous emissions from the facility from
causing or contributing to objectionable odors beyond the facility's boundary.
8. Federal and State Rules Applicable to Sources Exempted from Air Permitting Requirements
-Your facility is subject to the following federal and state rules:
40 CFR 63 -NESHAP/MACT -- Subpart ZZZZ --Reciprocating Internal
Combustion Engines i
which are applicable to some of the emission sources at your facility listed on the
"Insignificant/Exempt Activities" list attached to this permit. The purpose of this permit
condition is to inform you of your compliance obligations to these applicable rules as they
are enforceable.

Permit No. 06650R14
Page 5
9. LIMITATION TO AVOID 15A NCAC 2Q .0501 -Pursuant to 15A NCAC 2Q .0315
"Synthetic Minor Facilities," to avoid the applicability of 15A NCAC 2Q .0501 "Purpose of
Section and Requirement for a Permit," as requested by the Permittee, facility-wide
emissions shall be less than the following:
Pollutant Emission Limit
1('Tons per consecutive 12-month period)
PM10 100
a. Inspection and Maintenance Requirements -
i. Bagfilter Requirements -Particulate matter emissions shall be controlled as
described in the permitted equipment list. To comply with the provisions of
this permit and ensure that emissions do not exceed the regulated limits, the
Permittee shall perform periodic inspections and maintenance (I&M) as
recommended by the manufacturer. In addition, the Permittee shall perform
an annual (for each 12 month period following the initial inspection) internal
inspection of each bagfilter system.
b. Recordkeeping Requirements
i. A log book shall be kept on site for each control device and made available to
Division of Air Quality personnel upon request. The Permittee shall record
all inspection, maintenance-and monitoring requirements listed above in the
log book. Any variance from the manufacturer's recommendations shall be
investigated with corrections made and date of actions recorded in the log
book.
10. TOXIC AIR POLLUTANT EMISSIONS LIMITATION REQUIREMENT -Pursuant to
15A NCAC 2Q .0711 "Emission Rates Requiring a Permit," for each of the below listed
toxic air pollutants (TAPS), the Permittee has made a demonstration that facility-wide actual
emissions, where one or more emission release points are obstructed or non-vertically
oriented, do not exceed the Toxic Permit Emission Rates (TPERs) listed in 15A NCAC 2Q
.0711(a). The facility shall be operated and maintained in such a manner that emissions of
any listed TAPs from the1acility, including fugitive emissions, will not exceed TPERs listed
in 15A NCAC 2Q .0711(a).
a. A permit to emit any of the below listed TAPs shall be required for this facility if
actual emissions from all sources will become greater than the corresponding
TPERs.
b. PRIOR to exceeding any of these listed TPERs, the Permittee shall be responsible
for obtaining a permit to emit TAPs and for demonstrating compliance with the
requirements of 15A NCAC 2D .1100 "Control of Toxic Air Pollutants".

Permit No. 06650R14
Page 6
c. In accordance with the approved application, the Permittee shall maintain records of
operational information demonstrating that the TAP emissions do not exceed the
TPERs as listed below:
. ___............ __..._.___._. .__. ___._________.._.................._..._._. ___.._. ..... _.....___.......
Carcinogens Chronic Acute Systemic. Acute
Pollutant �b/yr) Toxicants Toxicants Irritants
(lb/day). ... _ (lb/hr) ..._. ... .(lb/hr).
MEK(methyl ethyl ketone, 2-
butanone) (78-93-3) 78 22.4
B. GENERAL CONDITIONS AND LIMITATIONS
1. In accordance with G.S. 143-215.108(c)(1), TWO COPIES OF ALL DOCUMENTS,
REPORTS, TEST DATA, MONITORING DATA,NOTIFICATIONS, REQUESTS FOR
RENEWAL,AND ANY OTHER INFORMATION REQUIRED BY THIS PERMIT shall
be submitted to the:
Regional Supervisor
North Carolina Division of Air Quality
Mooresville Regional Office
610 East Center Avenue, Suite 301
Mooresville,NC 28115
704-663-1699
For identification purposes, each submittal should include the facility name as listed on the
permit, the facility identification number, and the permit number.
2. RECORDS RETENTION REQUIREMENT - In accordance with 15A NCAC 2D .0605,
any records required by the conditions of this permit shall be kept on site and made available
to DAQ personnel for inspection upon request. These records shall be maintained in a form
suitable and readily available for expeditious inspection and review. These records must be
kept on site for a minimum of 2 years, unless another time period is otherwise specified.
3. ANNUAL FEE PAYMENT - Pursuant to 15A NCAC 2Q .0203(a), the Permittee shall pay
the annual permit fee within 30 days of being billed by the DAQ. Failure to pay the fee in a
timely manner will cause the DAQ to initiate action to revoke the permit.
4. EQUIPMENT RELOCATION-In accordance with 15A NCAC 2Q .0301, a new air permit
shall be obtained by the Permittee prior to establishing, building, erecting, using, or
operating the emission sources or air cleaning equipment at a site or location not specified in
this permit.

Permit No. 06650R14
Page 7
5. REPORTING REQUIREMENT - In accordance with 15A NCAC 2Q .0309, any of the
following that would result in previously unpermitted, new, or increased emissions must be
reported to the Regional Supervisor, DAQ:
a. changes in the information submitted in the application regarding facility emissions;
b. changes that modify equipment or processes of existing permitted facilities; or
c. changes in the quantity or quality of materials processed.
If appropriate, modifications to the permit may then be made by the DAQ to reflect any
necessary changes in the permit conditions. In no case are any new or increased emissions
allowed that will cause a violation of the emission limitations specified herein.
6. In accordance with 15A NCAC 2Q .0309, this permit is subject to revocation or
modification by the DAQ upon a determination that information contained in the application
or presented in the support thereof is incorrect, conditions under which this permit was
granted have changed, or violations of conditions contained in this permit have occurred. In
accordance with G.S. 143-215.108(c)(1), the facility shall be properly operated and
maintained at all times in a manner that will effectuate an overall reduction in air pollution.
Unless otherwise specified by this permit, no emission source may be operated without the
concurrent operation of its associated air cleaning device(s) and appurtenances.
7. CHANGES NOT REQUIRING PERMIT REVISIONS - Pursuant to 15A NCAC 02Q
.0318, changes to the facility that are not exempt pursuant to 15A NCAC 02Q .0102 may be
allowed without first modifying an applicable air permit if the change(s) meet(s) the
requirements of 15A NCAC 02Q .0318(b)(1) through(b)(5) and the owner or operator
notifies the Director in writing, using forms provided by the Division, seven calendar days
before the change is made. Within 10 business days of receipt of the notice, the Division
shall notify the owner or operator of its determination of whether the change(s) meet(s)the
requirements of 15A NCAC 02Q .0318(b)(1) through(b)(5).
8. In accordance with G.S. 143-215.108(c)(1), this permit is nontransferable by the Permittee.
Future owners and operators must obtain a new air permit from the DAQ.
9. In accordance with G.S. 143-215.108(c)(1), this issuance of this permit in no way absolves
the Permittee of liability for any potential civil penalties which may be assessed for
violations of State law which have occurred prior to the effective date of this permit.
10. In accordance with G.S. 143-215.108(c)(1), this permit does not relieve the Permittee of the
responsibility of complying with all applicable requirements of any Federal, State, or Local
water quality or land quality control authority.

Permit No. 06650R14
Page 8
11. In accordance with 15A NCAC 2D .0605, reports on the operation and maintenance of the
facility shall be submitted by the Permittee to the Regional Supervisor, DAQ at such
intervals and in such form and detail as may be required by the DAQ. Information required
in such reports may include, but is not limited to,process weight rates;firing rates, hours of
operation, and preventive maintenance schedules.
12. A violation of any term or condition of this permit shall subject the Permittee to enforcement
pursuant to G.S. 143-215.114A, 143-215.114B, and 143-215.114C, including assessment of
civil and/or criminal penalties.
13. Pursuant to North Carolina General Statute 143-215.3(a)(2),no person shall refuse entry or
access to any authorized representative of the DAQ who requests entry or access for
purposes of inspection, and who presents appropriate credentials, nor shall any person
obstruct,hamper, or interfere with any such representative while in the process of carrying
out his official duties. Refusal of entry or access may constitute grounds for permit
revocation and assessment of civil penalties.
14. In accordance with G.S. 143-215.108(c)(1), this permit does not relieve the Permittee of the
responsibility of complying with any applicable Federal, State, or Local requirements
governing the handling, disposal, or incineration of hazardous, solid, or medical wastes,
including the Resource Conservation and Recovery Act(RCRA) administered by the
Division of Waste Management.
15. PERMIT RETENTION REQUIREMENT - In accordance with 15A NCAC 2Q .0110, the
Permittee shall retain a current copy of the air permit at the site. The Permittee must make
available to personnel of the DAQ,upon request, the current copy of the air permit for the
site.
16. CLEAN AIR ACT SECTION 112(r) REQUIREMENTS -Pursuant to 15A NCAC 2D .2100
"Risk Management Program," if the Permittee is required to develop and register a risk
management plan pursuant to Section 112(r) of the Federal Clean Air Act, then the
Permittee is required to register this plan with the USEPA in accordance with 40 CFR Part
68. "
17. GENERAL EMISSIONS TESTING AND REPORTING REQUIREMENTS -If emissions
testing is required by this permit, or the DAQ, or if the Permittee submits emissions testing
to the DAQ in support of a permit application or to demonstrate compliance,the Permittee
shall perform such testing in accordance with 15A NCAC 2D .2600 and follow all DAQ
procedures including protocol approval, regional notification,report submittal, and test
results approval. Additionally, in accordance with 15A NCAC 2D .0605, the Permittee shall
follow the procedures for obtaining any required audit sample and reporting those results.

Permit No. 06650R14
Page 9
Permit issued this the 5th of January, 2023.
NORTH CAROLINA ENVIRONMENTAL MANAGEMENT COMMISSION
Melinda Wolanin
Regional Supervisor
By Authority of the Environmental Management Commission
Air Permit No. 06650R14
i

ATTACHMENT to Permit No. 06650R14, January 5, 2023
Insignificant/Exempt Activities
Source Exemption Source of Source of Title V
Regulation TAM Pollutants?.
5-5001 - extruder process consisting of 1
en (10) extrusion lines (two extruders per • 2Q .0102 (h)(5) Yes Yes
line)
I-PUMP - diesel-fired fire pump (220 hp) (2Q 0102 (h)(5) Yes Yes
subject to MACT Subpart ZZZZ II
I-TOWER- cooling tower 12Q .0102 (h)(5) No I Yes
1. Because an activity is exempted from being required to have a permit or permit modification
does not mean that the activity is exempted from an applicable requirement or that the owner
or operator of the source is exempted from demonstrating compliance with any applicable
requirement.
2. When applicable, emissions from stationary source activities identified above shall be
included in determining compliance with the permit requirements for toxic air pollutants
under 15A NCAC 2D .1100 "Control of Toxic Air Pollutants" or 2Q .0711 "Emission Rates
Requiring a Permit."
3. Sample.permit conditions showing the regulatory requirements for exempt sources subject to
NESHAP,NSPS, and NCAC rules may be found here:
https://deq.nc. ov/agpennitconditions

https://ncconnect.sharepoint.com/sites/DAQ-MRO/Countiies/CATA"A/00377/RI4 REVIEW.docx
NORTH CAROLINA DIVISION OF Region: Mooresville Regional Office
AIR QUALITY County: Catawba
Application Review NC Facility ID: 1800377
Inspector's Name: Sandra Sherer
Date of Last Inspection: 10/25/2022
Compliance Code: 3/Compliance-inspection
Facility Data Permit Applicability(this application only)
Applicant(Facility's Name): CertainTeed dba Millwork&Panel LLC SIP: Y
NSPS:N
Facility Address: NESHAP:Y(ZZZZ)
CertainTeed dba Millwork&Panel LLC PSD: N
2651 Penny Road PSD Avoidance: N
Claremont,NC 28610 NC Toxics: Y(2Q.0711)
112(r): N
SIC:5033/Roofing,Siding And Insulation Other:N/A
NAICS: 42333/Roofing,Siding,and Insulation Material Merchant Wholesalers
Facility Classification:Before: Synthetic Minor After: Synthetic Minor
Fee Classification: Before: Synthetic Minor After: Synthetic Minor
Contact Data Application Data
Facility Contact Authorized Contact Technical Contact Application Number: 1800377.22A
Brian Lane Gregory Horton D.Neil Gresham,Jr. Date Received: 07/05/2022
EHS Manager Plant Manager Southeast Region EHS Application Type: Renewal
[phone] [phone] Manager Application Schedule: State
P.O.Box 760 P.O.Box 760 [phone] Existing Permit Data
Claremont,NC 28610 Claremont,NC 28610 200 Certainteed Road Existing Permit Number: 06650/R13
Oxford,NC 27565 Existing Permit Issue Date: 10/09/2014
11 Existing Permit Expiration Date: 09/30/2022
Review Engineer: Jennifer Manning Comments/Recommendations:
Review En ' eer's Si nature: Date: Issue 06650/R14
1. PURPOSE OF APPLICATION:
Application is made for renewal of the air permit. In addition,the facility's name is being
changed.
Old name: Certainteed Vinyl Operations
New name: CertainTeed dba Millwork&Panel LLC

Permit Review
Page 2
2. CHRONOLOGY:
Pate € Event
............_- .............. .....
_�.:�
July 5,2022 jThe application was received.
... .. ....: .--:_--- _ ._ _.:_
July 7,2022 The acknowledgment letter was sent.
August 15, 2022 ` n additional information request was sent pertaining to the emissions
linventory.
November 15,2022 IThe information requested was received.
[November 28, 2022]inventory.
` nadditional information request was sent pertaining to the emissions
December 7, 2022 ;The information requested was received.
3. EMISSION SOURCE CHANGES:
a. Permitted Emission Sources
The facility replaced one of the cool mixers (ES-6002)with a new unit,which will vent
to the existing control device(FR-6002). Therefore,the following source will be added:
Emission i Emission Source Control Control System
j System ID
Source ID Description (existing) Description (existing)
�5-6002 cool mixer(13,550 pounds FR-6002 bagfilter(183.4 square
jper hour maximum capacity) feet of filter area)
The following control device will be removed from the permit. An asterix (*) was added
to the ID number so that our system could retain a record of the old control device while
allowing the facility to use the same ID number for the replacement cool mixer.
IIEmission FEmission Source
Source ID Description
ES-6002* cool mixer(24,000 pounds per hour maximum I
capacity)
_.._........_ ___.__..__.......__.......__.___.___e....._..::....._..___—__..__....._............._._._.._.___..._..._.....---...w......._W._._._.....__...._.__...._:.._........__.......__......_................
�
b. Insignificant/Exempt Activities
There are no changes to the equipment from this application.

Permit Review
Page 3
4. REVIEW OF REGULATIONS:
The Permittee shall comply with the following Environmental Management Commission
Regulations, including Title 15A North Carolina Administrative Code(NCAC). The regulations
that will be discussed in this application are shown in bold since existing regulations addressed in
previous reviews and/or inspection reports will only be discussed below if affected by this
application, deemed necessary by this permit writer,or if regulatory changes have been made.
• 2D .0202—Registration of Air Pollution Sources
• 2D .0515—Particulates from Miscellaneous Industrial Processes
0 2D .0521 —Control of Visible Emissions
• 2D .0535 —Excess Emissions Reporting and Malfunctions
• 2D .0540—Particulates from Fugitive Dust Emission Sources
• 2D .1111 —NESHAP(Subpart ZZZZ)
• 2D .1806—Control and Prohibition of Odorous Emissions
• 2Q .0315—Synthetic Minor Facilities
2Q .0711 —Emission Rates Requiring a Permit
15A NCAC 2D .1806,"Control and Prohibition of Odorous Emissions"
The facility shall not operate without implementing management practices or installing and
operating odor control equipment sufficient to prevent odorous emissions from the facility from
causing or contributing to objectionable odors beyond the facility's boundary.
During the most recent facility inspection,no objectionable odors were detected beyond the
facility's boundary. In addition,this office has not received any complaints regarding odors from
this facility.
Therefore,the facility is considered to be in compliance with 2D .1806.
5. APPLICIBILITY TO THE FOLLOWING:
a. NSPS—
The facility does not have any sources subject to NSPS.
The fire pump is NOT subject to NSPS HII since it was manufactured in 1973,which is
well before the applicability date.
b. NESHAP—
Subpart ZZZZ-Stationary Reciprocating Internal Combustion Engines (RICE)applies to
the diesel-fired fire pump (ID No. I-PUMP).
c. PSD INCREMENT TRACKING—
This renewal does not affect PSD increment tracking.
d. ATTAINMENT STATUS—
This facility is located in an area that is either in attainment or unclassifiable for all
pollutants.

Permit Review
Page 4
e. 112(r)—
This facility is not subject to RMP requirements of the 112(r)program since.it does not
use or store any of the regulated chemicals in quantities above the threshold levels in the
rule.
f. TOXICS—
This facility is subject to toxics per 2Q.0711. This application does not trigger a toxics
review.
6. FACILITY-WIDE EMISSIONS:
Emissions were taken from the previous permit review.Any emissions changes from the
replacement cool mixer are not significant and will not affect applicability to or compliance with
any regulations.
Pollutant Potential Emissions Potential Emissions
After Controls/Limitations , Before Controls/Limitations
TSP 10.42 16,034.69
PM10 10.42 15,313.72
S02 0.22 0.22
NOx 1.71 1.71
VOC 16.95 16.95
CO 0.37 0.37
Highest HAP 1.05 1.05
(vinyl chloride
Total HAP 1.06 1.06
7. TEXT FOR"CHANGES"PARAGRAPH IN PERMIT COVER LETTER:
• A rule change that became effective November 1,2016,removed the"state-wide"
applicability of 2D .0958, and it now only applies to the counties/townships listed in the
regulation. This facility is not located in one of the areas still-subject to this regulation;
therefore,the condition for 21) .0958 is being removed from the permit.
• Condition 15A NCAC 21) .1806 "Control and Prohibition of Odorous Emissions"was
added to the permit per DAQ policy.
8. RECOMMENDATION:
It is recommended that permit 06650R14 be issued.
JAM

Comprehensive Application Report for 1800377.22A 01/05/2023
CertainTeed dba Millwork&Panel LLC-Claremont(1800377)
Catawba County
General Information: Permit/Latest Revision: 06650/R14 Application Dates
Permit code: State Received Completeness Due Clock Start Calculated Issue Due
Application type: Renewal 07/05/2022 08/19/2022 11/15/2022 02/23/2023
Engineer/Rev.location: Jennifer ManningtMRO
Fee Information
Regional Contact: Initial amount: Date received: Amount Due: Add.Amt Rcv'd: Date Rcv'd:
Facility location: Mooresville Regional Office 07/05/2022
Current Class/Status: Synthetic Minor Fund type: Deposit Slip#: Location rec'd: Location deposited:
Clock is ON Application is COMPLETE 2331
Status is: Issued
Contact Information
Type Name Address City State ZIP Telephone
Authorized Gregory Horton,Plant Manager P.O.Box 760 Claremont,NC 28610 [phone]
Technical/Permit D.Neil Gresham,Jr.,Southeast Region EHS Manager 200 Certainteed Road Oxford,NC 27565 [phone]
Acceptance Criteria
Received? Acceptance Criteria Description Completeness Criteri.a
N/A Application fee or ePay Received? Complete Item Description
Yes Appropriate number of apps submitted
N/A Zoning Addressed
Yes Authorized signature
N/A PE Seal
Yes Emissions Inventory Rec'd-Renewal Only
N/A CN-Const.Notice Complete
N/A CN-Fac.Name&Location
N/A CN-Permittee Name&Address
N/A CN-Per.No.of All DAQ Permits
N/A CN-Prop.Equip.List&Descrip.
N/A CN-Prop.CD(s)List&Descrip.
N/A CN-Est.Emissions Asso.w/Mod.
1

Comprehensive Application Report for 1800377.22A 01/05/2023
CertainTeed dba Millwork&Panel LLC-Claremont(1800377)
Catawba County
N/A CN-Sch.for Alter.&Expansion
N/A CN-Will Not Operate Statement
N/A CN-Financial Risk Statement
N/A CN-Proof of Public Notice
N/A CN-Certification of Completeness
N/A CN-Fee received
N/A Application contains toxic modification(s)
Application Events
Event Start Due Complete Comments Staff
Acknowledgment letter due 07/05/2022 07/15/2022 07/07/2022 jamamung
Completeness additional information request 08/15/2022 09/14/2022 11/15/2022 jamanning
Technical additional information request 11/28/2022 12/28/2022 12/07/2022 jamanning
Permit issued 01/05/2023 01/05/2023 jamanning

Comprehensive Application Report for 1800377.22A 01/05/2023
CertainTeed dba Millwork&Panel LLC-Claremont(1800377)
Catawba County
Class before: Synthetic Minor Class after: Synthetic Minor Permit/Revision: 06650/R14
2Q.0711: No 2D.1100: No Revision Issue Date: 01/05/2023
NSPS: No NESHAPS/MACT: No PSD/NSR: No Accumulated process days(includes public notice periods):41
PSD/NSRAvoid: No Prohibitory Small: No Public notice/hearing/add info after 80 days:
PSD/NSR Status After: Minor General permit: No Manager's discretion: Appealed? No
Multi-site permit: No Multi.permits at facility: No Current Permit Information:
Quarry permit:No Recycled Oil Condition: No Issue Effective Expiration Revision#
S133 BACT: - No HAP Major(10/25 tpy): Minor 01/05/2023 01/05/2023 12/31/2030 R14
2Q.0705 Last MACT/Toxics: NO NESHAPS/GACT: NO
New Source RACT/LAER: NO Existing Source RACT: NO
RACT/LAER Added Fee: NO RACT Avoidance: NO
TV ACI: NO
2Q.0702(a)(18)-Toxics/Combustion Source(s)After 07/10/10: NO
1126)/112(d): NO
3

Comprehensive Application Report for 1800377.22A 01/05/2023
CertainTeed dba Millwork&Panel LLC-Claremont(1800377)
Catawba County
Regulations Pertaining to this Permit
Reference Rule Regulation Description
2D .1806 Control And Prohibition of Odorous Emissions -
2D .0202 Registration of Air Pollution Sources
2Q .0315 Synthetic Minor Facilities
2D .0515 Particulates from Miscellaneous Industrial Processes
2D .0521 Control of Visible Emissions
2D .0535 Excess Emissions Reporting and Malfunctions
2Q .0711 Emission Rates Requiring a Permit
2Q .0102 Activities Exempted from Permit Requirements
Audit Infoimation Pertaining to this Application
Column Name Date Changed Old Value New Value Editor
4

ROY COOPER Q.
Governor
ELIZABETH S.MSER -
Secretory
` MICHAEL A.ABRACZINSKAS
FILE COPY
i Director NORTH CAROLINA
' Environmental Quality
July 7, 2022
Mr. Gregory Horton
4 Plant Manager
CertainTeed dba Millwork&Panel LLC
P..O.Box 760
Claremont,NC 28610
l .
SUBJECT: Receipt of Permit Application
Renewal of Permit No. 06650R13
Application No. 1800377.22A
CertainTeed dba Millwork&Panel LLC
Facility ID: 1800377, Claremont, Catawba County
DearMr. Horton:
Your air permit application(1800377.22A) for CertainTeed dba Millwork&Panel LLC, located
in Catawba County,North Carolina was received by this division on July 5,2022. This application
submittal did contain all the required elements and has been accepted for processing. Your
application will be considered complete as of July 5,2022,unless informed otherwise by this office
within 45 days. Should you have any questions concerning this matter,please contact Jennifer
Manning at 704-235-2224 or by email at [e-mail].
Sincerely,
Melinda Wolanin, Regional Supervisor
Division of Air Quality,NCDEQ
JAM
cc: Mooresville Regional Office Files
https://ncconnect.sharepoint.com/sites/DAQ-MRO/Counties/CATAWBA/00377/RI4 ACK 20220707.docx
North Carolina Department of Environmental Quality I Division ofAir Quality
Mooresville Regional Office 1610 East Center Avenue,Suite 3011 Mooresville,NC 28115
D- E�VC4fHCNi01.INA 704.663.1699 T 1704.663.6040 F
OBpBR1110iIt U1hro110MI811t014u9rM1Y� � .

SCANNED
CertainTeedE
Millwork&Panel LLC NC DEPARTMENT OF
2651 Penny Road
ENVIRONMENTAL QUALITY
PO Box 760 RECEIVED
Claremont,NC 28610
JUL 05 2022
June 29,2022
MOORESVILLE REGIONAL OFFICE
Via Fed Ex(Tracking#777263868260) DIVISION OF AIR QUALITY
Attn:Bruce J.Ingle Regional Supervisor
North Carolina Department of Environment and Natural Resources
Mooresville Regional Office
Division of Air Quality
610 East Center Ave,Suite 301
Mooresville,NC 28115
Re:Synthetic Minor Permit Renewal for Millwork&Panel LLC(Facility ID:1800377)
Dear Mr.Ingle:
Enclosed please find two(2)copies of the following documents:North Carolina Department of Environment and Natural
Resources(NCDENR)Synthetic Minor permit renewal application for the Millwork&Panel Vinyl Operations Facility(ID#
1800377)(Formerly CertainTeed Vinyl Operations)in Claremont,Catawba,North Carolina.This application is being submitted
at least 90 days prior to the expiration of the permit(September 30,2022)in accordance with 15A NCAC 2Q.0304(d)and(f).In
addition,the permit application also includes two(2)copies of the following documents:
• Emission Inventory(Printed from AERO)with calculations
• Form A
As discussed with Jennifer Manning,Permits Coordinator with the Division of Air Quality,ES-6002/FR-6002 was replaced with
a new cool mixer and dust collector meeting the exemption at 2Q.0102(g)(1)(E).ES-6001 has currently been decommissioned
with plans to install a replacement cool mixer per 2Q.0102(g)(1)(E)In the future.As directed by Jennifer Manning,a 2Q.0318
Notification Form will be submitted at least 7 days prior to the change.
If you have questions or comments regarding this package,please feel free to contact Brian Lane at(828)459-8944
Kind Regards,
Greg HortorN_``-
Plant Manager

FORM A
GENERAL FACILITY INFORMATION
REVISED 04/18/19 NCDEQ/Division of Air Quality-Application for Air Permit to Construct/Operate A
NOTE APPLICATION WILL NOT BE PROCESSED WITHOUT THE FOLLOWING:
❑ Local Zoning Consistency Determination Appropriate Number of Copies of Application Application Fee(please check one option below)
(new or modification only)
Responsible Official/Authorized Contact Signature P.E.Seal(if required) QN ed ePa ent Check Enclosed
GENERAL INFORMATION " ENVI
Legal Corporate/OwnerName:Millwork&Panel LLC RECEIVED
Site Name:CertainTeed
Site Address(911 Address)Line 1: 2651 Penny Road
Site Address Line 2:PO Box 760
city:Claremont State:North Carolina
Zip Code:28610 County:Catawba MOORESVILLE REGIONAL OFFICE
CONTACT INFORMATION
Responsible OfliciaYAuthorized Contact: Invoice Contact:Brian Lane
Name/Title:Gregory Horton Name/Title:EHS Manager
Mailing Address Line 1:2651 Penny Rd.PO Box 760 Mailing Address Line 1:2651 Penny Rd.PO Box 760
Mailing Address Line 2: Mailing Address Line 2:
City:Claremont State:NC Zip Code:286I0 City:Claremont State:NC Zip Code:28610
Primary Phone No.:828 459 3324 IFax No.:828 459 1109 Primary Phone No.:828 459 8944 Fax No.:828 459 1109
Secondary Phone No.:828 228 5121 1 1 Secondary Phone No.:828 4617683
Email Address:Gregory.Hortonpsaint-gobain.com Email Address:Brian.N.Lane n,saint-gobain.com
Facilitylinspection Contact: Permit/Technical Contact:
Namelritle:Brian Lane Namerritle:D Neil Gresham Jr,P.E.Sr.Compliance&Regional EHS Manager
Mailing Address Line 1:2651 Penny Rd. Mailing Address Line 1:200 CertainTeed Rd.
Mailing Address Line 2: Mailing Address Line 2:
City:Claremont State:NC Zip Code:28610 City:Oxford State:NC Zip Code:27565
Primary Phone No.:828 459 8944 Fax No.:828 459 1109 1 Primary Phone No.:919 6912073 Fax No.:
Secondary Phone No.:828 4617683 1 Secondary Phone No.:828 228 5121
Email Address:Brian.N.Lanepsaint-gobain.coin jEmail Address:Douglas.N.Gresllam(@saint-gobain.com
APPLICATION IS BEING�MADE FOR
New Non-permitted Facility/Greenfield ❑Modification of Facility(permitted) Renewal Title V Renewal Non-Title V
Name Change Ownership Change ❑Administrative Amendment Renewal with Modification
FACILITY CLASSIFICATION AFTER APPLICATION(Check Only One)
General Small Prohibitory Small Synthetic Minor Title V
FACILITY(Plant Site)INFORMATION-
Describe nature of(plant site)operation(s):
The CertainTeed facility in Claremont NC produces vinyl siding and soffit for the housing industry.The plant employees over 180 employees and can operate up to 10 extrusion
lines for the production of vinyl siding.Manufactured products from these production lines are warehoused on site prior to shipment.
Facility ID No.1800377
Primary SIC/NAICS Code:3089 Current/Previous Air Permit No.06650R11 Expiration Date:9-30-2022
Facility Coordinates: Latitude:35'42'32" Longitude:81'09'36-
Does this application contain confidential data? YES NO "`If yes,please contact the DAQ Regional Office prior to submitting this application"'
(See Instructions)
PERSON OR FIRM THAT PREPARED APPLICATION
Person Name:Brian Lane Firm Name:
Mailing Address Line 1:2651 Penny Road Mailing Address Line 2:
City:Claremont State:NC Zip Code: County:
Phone No.:828-459-8944 Fax No.:828 459 1109 Email Address:
SIGNATURE OF RESPONSIBLE OFFICIAL/AUTHORIZED CONTACT
Name(typed):Gregory Horton Title:Plant Manager
X Signature(Blue Date:
o Attach Additional Sheets As Necessary Page 1 of 2

FORM A (continued,page 2 of 2)
GENERAL FACILITY INFORMATION
REVISED 04/18/19 NCDEQ/Division of Air Quality-Application for Air Permit to Construct/Operate A
SECTION AA1 -APPLICATION FOR NON-TITLE V PERMIT RENEWAL
Millwork&Panel LLC (Company Name)hereby formally requests renewal of Air Permit No. 06650R11
There have been no modifications to the originally permitted facility or the operations therein that would require an air permit since the last permit was issued.
Is your facility subject to 40 CFR Part 68"Prevention of Accidental Releases"-Section 112(r)of the Clean Air Act? O YES () NO
If yes,have you already submitted a Risk Manage Plan(RMP)to EPA? 0 YES 0 NO Date Submitted:
Did you attach a current emissions inventory? Q YES 0 NO
If no,did you submit the inventory via AERO or by mail? ❑ Via AERO ❑ Mailed Date Mailed:
SECTI0N-AA2-APPLICATION FOR TITLE V PERMIT RENEWAL,
In accordance with the provisions of Title 15A 2Q.0513,the responsible official of (Company Name)
hereby formally requests renewal of Air Permit No. (Air Permit No.)and further certifies that:
(1) The current air quality permit identifies and describes all emissions units at the above subject facility,except where such units are exempted under the North Carolina Title V regulations at
15A NCAC 2Q.0500;
(2) The current air quality permit cites all applicable requirements and provides the method or methods for determining compliance with the applicable requirements;
(3) The facility is currently in compliance,and shall continue to comply,with all applicable requirements. (Note: As provided under 15A NCAC 2Q.0512,compliance with the conditions of the
permit shall be deemed compliance with the applicable requirements specifically identified in the permit);
(4) For applicable requirements that become effective during the term of the renewed permit that the facility shall comply on a timely basis;
(5) The facility shall fulfill applicable enhanced monitoring requirements and submit a compliance certification as required by 40 CFR Part 64.
The responsible official(signature on page 1)certifies under the penalty of law that all information and statements provided above,based on information and belief formed after reasonable inquiry,are true,
accurate,and complete.
SECTION AA3-APPLICATION FOR NAME CHANGE
New Facility Name: Millwork&Panel LLC
Former Facility Name: CertainTeed Vinyl Operations
An official facility name change is requested as described above for the air permit mentioned on page 1 of this forth. Complete the other sections if there have been modifications to the originally permitted
facility that would require an air quality permit since the last permit was issued and if there has been an ownership change associated with this name change.
Y SECTION AA4-APPLICATION FOR AN OWNERSHIP CHANGE,
By this application we hereby request transfer of Air Quality Permit No. from the former owner to the new owner as described below.
The transfer of permit responsibility,coverage and liability shall be effective (immediately or insert date.) The legal ownership of the
facility described on page 1 of this forth has been or will be transferred on (date). There have been no modifications to the originally
permitted facility that would require an air quality permit since the last permit was issued.
Signature of New(Buyer)Responsible Official/Authorized Contact(as typed on page 1): NC DEPARTMENT OF
ENVIRONMENTAL QUALITY
X Signature(Blue Ink): RECEIVED
Date:New Facility Name: JUL 05 2022
Former Facility Name:
MOORESVILLE REGIONAL OFFICE
Signature of Former(Seller)Responsible Official/Authorized Contact: DIVISION OF AIR QUALITY
Name(typed or print):
Title:
X Signature(Blue Ink):
Date:
Fortner Legal Corporate/Owner Name:
In lieu of the seller's signature on this form,a letter may be submitted with the seller's signature indicating the ownership change
- SECTION AA5-APPLICATION FOR ADMINISTRATIVE AMENDMENT
Describe the requested administrative amendment here(attach additional documents as necessary):
Attach Additional Sheets As Necessary Page 2 of 2