Leadership Team

Great Building Solutions Demand Great Leadership

In order to create the great exterior building solutions our customers depend on, visionary leadership is essential. Our corporate leadership team and board of directors are comprised of individuals with years of experience in related industries and the motivation to ensure that Cornerstone Building Brands succeeds in achieving its corporate objectives.

Rose Lee

Rose Lee

President and Chief Executive Officer

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Rose Lee

President and Chief Executive Officer

Rose Lee has served as President and Chief Executive Officer since September 2021, joining the board of directors at the same time.

Prior to joining the company, Ms. Lee was President of the DuPont Water & Protection business where she led a diverse business creating water, shelter, and safety solutions for a more sustainable world. Ms. Lee joined DuPont in 2015 as Global Business Director, DuPont™ Kevlar® and Aramid Intermediates. In 2016, she assumed the role of President, DuPont Protection Solutions and was named President, Safety & Construction in 2017.

Prior to joining DuPont, Ms. Lee held senior leadership positions at Saint-Gobain in several General Management positions serving construction, transportation, energy and defense sectors, as Strategy Director and CIO of North America region. Prior to Saint-Gobain, she held various engineering and management positions at Pratt & Whitney, a United Technologies company. She also was a Senior Consultant at Booz Allen Hamilton in New York City.

Ms. Lee is a board member of Honeywell. She has served as a member of the Economic Advisory Council for the Federal Reserve Bank of Philadelphia, Inc., and is a member of Women Corporate Directors, Philadelphia chapter.

Ms. Lee earned a Bachelor of Science in aerospace engineering from Cornell University, a Master of Science in mechanical engineering from Rensselaer Polytechnic Institute, and an M.B.A. from the Massachusetts Institute of Technology.

Jeffrey S. Lee

Jeffrey S. Lee

Executive Vice President, Chief Financial Officer

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Jeffrey S. Lee

Executive Vice President, Chief Financial Officer

Jeff Lee has served as Executive Vice President and Chief Financial Officer for Cornerstone Building Brands since June 2019. Prior to joining the Company, Mr. Lee was Senior Vice President and Chief Financial Officer of Wilsonart International since 2014. Wilsonart is a global manufacturer and distributor of decorative engineered surfaces like laminate, performance veneer and quartz surfaces for the commercial and residential markets. Before his role at Wilsonart, Mr. Lee was the Executive Vice President and Corporate CFO for Contech. He began his career at Eaton Corporation where he had a twelve year career with various finance and operational roles of increasing responsibility. Mr. Lee holds a bachelor’s degree from the University of Utah and an M.B.A from Duke University. He is also a Six Sigma Champion and received Lean Training at the University of Tennessee.

Matthew Ackley

Matthew Ackley

President, Commercial Solutions

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Matthew Ackley

President, Commercial Solutions

Matthew Ackley joined Cornerstone Building Brands as President, Engineered Building Systems on April 12, 2021 and was promoted to President, Commercial Solutions effective November 11, 2021. He brings with him nearly 20 years of accomplished leadership in the building materials industry. Most recently, Mr. Ackley served as Vice President, Sales for USG Corporation, overseeing its Commercial Ceilings and Corporate Accounts teams, where he led strategic planning, sales execution and revenue and profit growth efforts.

Mr. Ackley spent much of his career at USG Corporation, holding roles of increasing responsibility including: Vice President, Architectural Sales; Area Manager, Central; Sr. Manager, Investor Relations; Category Manager, Interior Walls – L&W Supply and several other roles in sales and operations. He holds a B.A. in Economics and Spanish from University of Redlands and an MBA from Pepperdine University.

Alena Brenner

Alena Brenner

Executive Vice President, General Counsel and Corporate Secretary

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Alena Brenner

Executive Vice President, General Counsel and Corporate Secretary

Alena Brenner joined Cornerstone Building Brands as Executive Vice President, General Counsel and Corporate Secretary on April 5, 2021, assuming the company’s legal, compliance and risk management functions.

Ms. Brenner brings with her more than 20 years of legal experience, most recently serving as Vice President and Deputy General Counsel for Ryder System, Inc., a transportation and logistics company.

Prior to her work with Ryder, Ms. Brenner was the Director of Commercial Law and M&A at the New York headquarters of Anheuser-Busch InBev (AB InBev). She previously spent over eight years at the New York City office of the law firm Hunton & Williams (now Hunton Andrews Kurth LLP) working in the Global Capital Markets and M&A group.

Ms. Brenner earned a bachelors degree in Industrial and Labor Relations from Cornell University and a juris doctorate from Fordham University School of Law. Ms. Brenner also serves on the board for Teach for America – Miami, a non-profit organization focused on recruiting outstanding and diverse leaders to teach in K-12 schools in low-income communities.

Jason Flack

Jason Flack

President, Stone Solutions

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Jason Flack

President, Stone Solutions

Jason Flack joined Cornerstone Building Brands as President, Stone Solutions on December 1, 2021, with more than 20 years of leadership experience in the building materials and automotive industries. Most recently, Mr. Flack served as Vice President, Sales for Firestone Building Products for the Americas. He also served as a Regional Business Manager and Director of Corporate Accounts during his time at Firestone Building Products. Jason also held the role of Zone Vice President for Store Operations, as well as Director of Strategy, for GCR Tires & Service, a division of Bridgestone Americas Tire Operations LLC.

Prior to Firestone Building Products and Bridgestone, Mr. Flack spent 13 years with Saint-Gobain Corporation subsidiary CertainTeed, serving in a variety of sales and business development leadership positions in the Insulation and Fence, Railing and Deck divisions. He holds a Bachelor of Science in Journalism from the University of Kansas.

Melissa Jones

Melissa Jones

President, U.S. Siding

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Melissa Jones

President, U.S. Siding

Melissa Jones joined Cornerstone Building Brands as President, U.S. Siding on July 1, 2022, assuming responsibility for the company’s residential siding and fence and rail business.

Ms. Jones brings more than 20 years of leadership experience and demonstrated success delivering revenue and profit growth through customer-centric organic growth strategies, M&A integration, operational excellence, and commercial excellence in the industrial machinery and electrical manufacturing industries. Most recently, Ms. Jones served as Group President, Commercial Water Solutions at Pentair, a global water treatment and solutions company, where she also held other various roles of increasing responsibility.

Prior to Pentair, Ms. Jones was Director of Product, Channel and Marketing at Generac Power Systems and Director or Marketing at Johnson Controls. She has also worked in corporate marketing functions at  Abbott Laboratories, Milwaukee Tool and Stanley Black & Decker.

Ms. Jones holds a Bachelor of Arts in economics from St. Mary’s Honors College of Maryland and an M.B.A from the University of Maryland.

James F. Keppler

James F. Keppler

Executive Vice President, Operations

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James F. Keppler

Executive Vice President, Operations

James F. Keppler joined Cornerstone Building Brands as Executive Vice President, Operations, on September 21, 2020 and is responsible for the end to end supply chain and manufacturing functions of the organization. Mr. Keppler brings with him more than 30 years’ experience leading the manufacturing and supply chain operations of large, diverse organizations within the automotive and appliance manufacturing industries.

Immediately prior to joining Cornerstone Building Brands, Keppler served as Vice President, Integrated Supply Chain and Quality, for Whirlpool Corporation where he was responsible for the North American manufacturing, logistics, planning and quality functions.

In 2015, Keppler was the recipient of Purdue University’s School of Engineering Technology Distinguished Technology Alumni Award and has served on the Board of Directors for the National Association of Manufacturers. Keppler earned a bachelor’s degree in Mechanical Technology from Purdue University and a master’s degree in Manufacturing Management from GMI Engineering and Management Institute.

Philip Langlois

Philip Langlois

President, Canada Business Unit

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Philip Langlois

President, Canada Business Unit

Philip Langlois has served, since August 2019, as President of the Canadian Business Unit for Cornerstone Building Brands. Prior to this appointment, Mr. Langlois was employed by Marvin Windows and Doors of Canada, joining in 2010 as Chief Operating Officer and then as President & Chief Operating Officer. Previously, Mr. Langlois held numerous senior leadership positions in both manufacturing and supply chain roles with Richelieu Hardware, JD Irving and CP Ships, bringing 20 years of operational and change management expertise to Cornerstone Building Brands. Mr. Langlois served as a Naval Officer, graduating with a bachelor’s degree from the Royal Military College in 1992. He also earned an MBA from the University of Montreal – Ecole des Hautes Etudes Commerciales – in 1999.

Colleen Pritchett

Colleen Pritchett

President, U.S. Windows

view Bio

Colleen Pritchett

President, U.S. Windows

Colleen Pritchett joined Cornerstone Building Brands as President, U.S. Windows on August 29, 2022, assuming responsibility for the company’s residential windows and doors business.

Ms. Pritchett has over 20 years of global leadership experience with demonstrated success improving operations and expanding product portfolios through innovation and growth strategies in the industrial, electronics and aerospace industries. Most recently, Ms. Pritchett served as President, Americas Aerospace, a division of Hexcel Corporation, where she was responsible for a P&L business valued at more than a billion-dollar P&L, as well as several thousand employees.

Prior to Hexcel, Ms. Pritchett spent 22 years in various roles of increasing responsibility with DuPont, where she gained extensive global and cross-functional leadership experience.

Ms. Pritchett received her Bachelor of Science in chemical engineering from Penn State University and an MBA from Goizueta Business School at Emory University. She also has leadership training from the Harvard Business School Leadership Program and Women in Governance Program at UCLA.

Susan S. Selle

Susan S. Selle

Chief Marketing Officer

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Susan S. Selle

Chief Marketing Officer

Susan S. Selle has served as Chief Marketing Officer for Cornerstone Building Brands, the merged NCI Building Systems and Ply Gem Building Products company, since November 2018. Before the merger, Ms. Selle served as Chief Marketing Officer for Ply Gem since July 2014. Before joining Ply Gem, Ms. Selle held senior marketing and brand leadership roles with Jarden Consumer Solutions (formerly Sunbeam Products) from 1998 – 2014. While at Jarden, she led global marketing, customer marketing, advertising strategy, category management, digital & social marketing, shopper marketing and portfolio brand management for leading brands such as Mr. Coffee, Crock-Pot, Oster, Sunbeam, Foodsaver, First Alert, Holmes, Margaritaville Products and Healthometer. Prior to joining Jarden, Ms. Selle was employed by Tyson Foods in Retail Product Marketing and Nestle Foods in Sales and Regional Marketing. She graduated from University of Missouri – Columbia with B.S in Marketing and Management and brings over 30 years of marketing experience with top Fortune 500 companies.

Alan Strassner

Alan Strassner

Executive Vice President, Chief Growth Officer

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Alan Strassner

Executive Vice President, Chief Growth Officer

Alan Strassner has served as Executive Vice President, Chief Growth Officer for Cornerstone Building Brands since 2022.  His responsibilities include strategy, growth ventures, mergers & acquisitions, and integration.   Mr. Strassner previously served as the Senior Vice President of Strategy & Business Development for Cornerstone Building Brands since 2018 and the Vice President of Corporate Strategy for NCI Building Systems since 2015. Prior to working at Cornerstone Building Brands, Alan held various corporate finance & strategy roles at a family office and was employed by Ernst & Young from 2006 to 2011. Mr. Strassner holds an MBA from Rice University, Jones Graduate School of Business and an MSA/BBA from the Honors College at the University of Houston, Bauer College of Business.

Katy K. Theroux

Katy K. Theroux

Executive Vice President & Chief Human Resources Officer

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Katy K. Theroux

Executive Vice President & Chief Human Resources Officer

Katy Theroux has served as Executive Vice President, Chief Human Resources Officer for Cornerstone Building Brands, the merged NCI Building Systems and Ply Gem Building Products company, since November 2018. Before the merger, Ms. Theroux served as the NCI Building Systems Senior Vice President, Marketing and Chief Human Resources Officer and joined NCI in 2014. Before joining NCI, Ms. Theroux was employed by 1WORLDSYNC where she served as Chief Marketing and Administrative Officer from 2012 to 2013 and was responsible for the integration of two multinational technology services companies. Prior to joining 1WORLDSYNC, she served as Senior Vice President, Customer Engagement & Solutions for its parent, GS1 US and 1SYNC from 2007 to 2012. Ms. Theroux also served as its Chief Human Resources Officer from 2006 to 2012. Ms. Theroux served on the board of Peirce College from 2001 until 2015 and was Chairman from 2011 until June 2015. Ms. Theroux has a B.S. from Syracuse University and an M.B.A. from Saint Peter’s University.

Rose Lee

Rose Lee

President and Chief Executive Officer

view Bio
Jeffrey S. Lee

Jeffrey S. Lee

Executive Vice President, Chief Financial Officer

view Bio

Rose Lee

President and Chief Executive Officer

Rose Lee has served as President and Chief Executive Officer since September 2021, joining the board of directors at the same time.

Prior to joining the company, Ms. Lee was President of the DuPont Water & Protection business where she led a diverse business creating water, shelter, and safety solutions for a more sustainable world. Ms. Lee joined DuPont in 2015 as Global Business Director, DuPont™ Kevlar® and Aramid Intermediates. In 2016, she assumed the role of President, DuPont Protection Solutions and was named President, Safety & Construction in 2017.

Prior to joining DuPont, Ms. Lee held senior leadership positions at Saint-Gobain in several General Management positions serving construction, transportation, energy and defense sectors, as Strategy Director and CIO of North America region. Prior to Saint-Gobain, she held various engineering and management positions at Pratt & Whitney, a United Technologies company. She also was a Senior Consultant at Booz Allen Hamilton in New York City.

Ms. Lee is a board member of Honeywell. She has served as a member of the Economic Advisory Council for the Federal Reserve Bank of Philadelphia, Inc., and is a member of Women Corporate Directors, Philadelphia chapter.

Ms. Lee earned a Bachelor of Science in aerospace engineering from Cornell University, a Master of Science in mechanical engineering from Rensselaer Polytechnic Institute, and an M.B.A. from the Massachusetts Institute of Technology.

Jeffrey S. Lee

Executive Vice President, Chief Financial Officer

Jeff Lee has served as Executive Vice President and Chief Financial Officer for Cornerstone Building Brands since June 2019. Prior to joining the Company, Mr. Lee was Senior Vice President and Chief Financial Officer of Wilsonart International since 2014. Wilsonart is a global manufacturer and distributor of decorative engineered surfaces like laminate, performance veneer and quartz surfaces for the commercial and residential markets. Before his role at Wilsonart, Mr. Lee was the Executive Vice President and Corporate CFO for Contech. He began his career at Eaton Corporation where he had a twelve year career with various finance and operational roles of increasing responsibility. Mr. Lee holds a bachelor’s degree from the University of Utah and an M.B.A from Duke University. He is also a Six Sigma Champion and received Lean Training at the University of Tennessee.

Matthew Ackley

Matthew Ackley

President, Commercial Solutions

view Bio
Alena Brenner

Alena Brenner

Executive Vice President, General Counsel and Corporate Secretary

view Bio

Matthew Ackley

President, Commercial Solutions

Matthew Ackley joined Cornerstone Building Brands as President, Engineered Building Systems on April 12, 2021 and was promoted to President, Commercial Solutions effective November 11, 2021. He brings with him nearly 20 years of accomplished leadership in the building materials industry. Most recently, Mr. Ackley served as Vice President, Sales for USG Corporation, overseeing its Commercial Ceilings and Corporate Accounts teams, where he led strategic planning, sales execution and revenue and profit growth efforts.

Mr. Ackley spent much of his career at USG Corporation, holding roles of increasing responsibility including: Vice President, Architectural Sales; Area Manager, Central; Sr. Manager, Investor Relations; Category Manager, Interior Walls – L&W Supply and several other roles in sales and operations. He holds a B.A. in Economics and Spanish from University of Redlands and an MBA from Pepperdine University.

Alena Brenner

Executive Vice President, General Counsel and Corporate Secretary

Alena Brenner joined Cornerstone Building Brands as Executive Vice President, General Counsel and Corporate Secretary on April 5, 2021, assuming the company’s legal, compliance and risk management functions.

Ms. Brenner brings with her more than 20 years of legal experience, most recently serving as Vice President and Deputy General Counsel for Ryder System, Inc., a transportation and logistics company.

Prior to her work with Ryder, Ms. Brenner was the Director of Commercial Law and M&A at the New York headquarters of Anheuser-Busch InBev (AB InBev). She previously spent over eight years at the New York City office of the law firm Hunton & Williams (now Hunton Andrews Kurth LLP) working in the Global Capital Markets and M&A group.

Ms. Brenner earned a bachelors degree in Industrial and Labor Relations from Cornell University and a juris doctorate from Fordham University School of Law. Ms. Brenner also serves on the board for Teach for America – Miami, a non-profit organization focused on recruiting outstanding and diverse leaders to teach in K-12 schools in low-income communities.

Jason Flack

Jason Flack

President, Stone Solutions

view Bio
Melissa Jones

Melissa Jones

President, U.S. Siding

view Bio

Jason Flack

President, Stone Solutions

Jason Flack joined Cornerstone Building Brands as President, Stone Solutions on December 1, 2021, with more than 20 years of leadership experience in the building materials and automotive industries. Most recently, Mr. Flack served as Vice President, Sales for Firestone Building Products for the Americas. He also served as a Regional Business Manager and Director of Corporate Accounts during his time at Firestone Building Products. Jason also held the role of Zone Vice President for Store Operations, as well as Director of Strategy, for GCR Tires & Service, a division of Bridgestone Americas Tire Operations LLC.

Prior to Firestone Building Products and Bridgestone, Mr. Flack spent 13 years with Saint-Gobain Corporation subsidiary CertainTeed, serving in a variety of sales and business development leadership positions in the Insulation and Fence, Railing and Deck divisions. He holds a Bachelor of Science in Journalism from the University of Kansas.

Melissa Jones

President, U.S. Siding

Melissa Jones joined Cornerstone Building Brands as President, U.S. Siding on July 1, 2022, assuming responsibility for the company’s residential siding and fence and rail business.

Ms. Jones brings more than 20 years of leadership experience and demonstrated success delivering revenue and profit growth through customer-centric organic growth strategies, M&A integration, operational excellence, and commercial excellence in the industrial machinery and electrical manufacturing industries. Most recently, Ms. Jones served as Group President, Commercial Water Solutions at Pentair, a global water treatment and solutions company, where she also held other various roles of increasing responsibility.

Prior to Pentair, Ms. Jones was Director of Product, Channel and Marketing at Generac Power Systems and Director or Marketing at Johnson Controls. She has also worked in corporate marketing functions at  Abbott Laboratories, Milwaukee Tool and Stanley Black & Decker.

Ms. Jones holds a Bachelor of Arts in economics from St. Mary’s Honors College of Maryland and an M.B.A from the University of Maryland.

James F. Keppler

James F. Keppler

Executive Vice President, Operations

view Bio
Philip Langlois

Philip Langlois

President, Canada Business Unit

view Bio

James F. Keppler

Executive Vice President, Operations

James F. Keppler joined Cornerstone Building Brands as Executive Vice President, Operations, on September 21, 2020 and is responsible for the end to end supply chain and manufacturing functions of the organization. Mr. Keppler brings with him more than 30 years’ experience leading the manufacturing and supply chain operations of large, diverse organizations within the automotive and appliance manufacturing industries.

Immediately prior to joining Cornerstone Building Brands, Keppler served as Vice President, Integrated Supply Chain and Quality, for Whirlpool Corporation where he was responsible for the North American manufacturing, logistics, planning and quality functions.

In 2015, Keppler was the recipient of Purdue University’s School of Engineering Technology Distinguished Technology Alumni Award and has served on the Board of Directors for the National Association of Manufacturers. Keppler earned a bachelor’s degree in Mechanical Technology from Purdue University and a master’s degree in Manufacturing Management from GMI Engineering and Management Institute.

Philip Langlois

President, Canada Business Unit

Philip Langlois has served, since August 2019, as President of the Canadian Business Unit for Cornerstone Building Brands. Prior to this appointment, Mr. Langlois was employed by Marvin Windows and Doors of Canada, joining in 2010 as Chief Operating Officer and then as President & Chief Operating Officer. Previously, Mr. Langlois held numerous senior leadership positions in both manufacturing and supply chain roles with Richelieu Hardware, JD Irving and CP Ships, bringing 20 years of operational and change management expertise to Cornerstone Building Brands. Mr. Langlois served as a Naval Officer, graduating with a bachelor’s degree from the Royal Military College in 1992. He also earned an MBA from the University of Montreal – Ecole des Hautes Etudes Commerciales – in 1999.

Colleen Pritchett

Colleen Pritchett

President, U.S. Windows

view Bio
Susan S. Selle

Susan S. Selle

Chief Marketing Officer

view Bio

Colleen Pritchett

President, U.S. Windows

Colleen Pritchett joined Cornerstone Building Brands as President, U.S. Windows on August 29, 2022, assuming responsibility for the company’s residential windows and doors business.

Ms. Pritchett has over 20 years of global leadership experience with demonstrated success improving operations and expanding product portfolios through innovation and growth strategies in the industrial, electronics and aerospace industries. Most recently, Ms. Pritchett served as President, Americas Aerospace, a division of Hexcel Corporation, where she was responsible for a P&L business valued at more than a billion-dollar P&L, as well as several thousand employees.

Prior to Hexcel, Ms. Pritchett spent 22 years in various roles of increasing responsibility with DuPont, where she gained extensive global and cross-functional leadership experience.

Ms. Pritchett received her Bachelor of Science in chemical engineering from Penn State University and an MBA from Goizueta Business School at Emory University. She also has leadership training from the Harvard Business School Leadership Program and Women in Governance Program at UCLA.

Susan S. Selle

Chief Marketing Officer

Susan S. Selle has served as Chief Marketing Officer for Cornerstone Building Brands, the merged NCI Building Systems and Ply Gem Building Products company, since November 2018. Before the merger, Ms. Selle served as Chief Marketing Officer for Ply Gem since July 2014. Before joining Ply Gem, Ms. Selle held senior marketing and brand leadership roles with Jarden Consumer Solutions (formerly Sunbeam Products) from 1998 – 2014. While at Jarden, she led global marketing, customer marketing, advertising strategy, category management, digital & social marketing, shopper marketing and portfolio brand management for leading brands such as Mr. Coffee, Crock-Pot, Oster, Sunbeam, Foodsaver, First Alert, Holmes, Margaritaville Products and Healthometer. Prior to joining Jarden, Ms. Selle was employed by Tyson Foods in Retail Product Marketing and Nestle Foods in Sales and Regional Marketing. She graduated from University of Missouri – Columbia with B.S in Marketing and Management and brings over 30 years of marketing experience with top Fortune 500 companies.

Alan Strassner

Alan Strassner

Executive Vice President, Chief Growth Officer

view Bio
Katy K. Theroux

Katy K. Theroux

Executive Vice President & Chief Human Resources Officer

view Bio

Alan Strassner

Executive Vice President, Chief Growth Officer

Alan Strassner has served as Executive Vice President, Chief Growth Officer for Cornerstone Building Brands since 2022.  His responsibilities include strategy, growth ventures, mergers & acquisitions, and integration.   Mr. Strassner previously served as the Senior Vice President of Strategy & Business Development for Cornerstone Building Brands since 2018 and the Vice President of Corporate Strategy for NCI Building Systems since 2015. Prior to working at Cornerstone Building Brands, Alan held various corporate finance & strategy roles at a family office and was employed by Ernst & Young from 2006 to 2011. Mr. Strassner holds an MBA from Rice University, Jones Graduate School of Business and an MSA/BBA from the Honors College at the University of Houston, Bauer College of Business.

Katy K. Theroux

Executive Vice President & Chief Human Resources Officer

Katy Theroux has served as Executive Vice President, Chief Human Resources Officer for Cornerstone Building Brands, the merged NCI Building Systems and Ply Gem Building Products company, since November 2018. Before the merger, Ms. Theroux served as the NCI Building Systems Senior Vice President, Marketing and Chief Human Resources Officer and joined NCI in 2014. Before joining NCI, Ms. Theroux was employed by 1WORLDSYNC where she served as Chief Marketing and Administrative Officer from 2012 to 2013 and was responsible for the integration of two multinational technology services companies. Prior to joining 1WORLDSYNC, she served as Senior Vice President, Customer Engagement & Solutions for its parent, GS1 US and 1SYNC from 2007 to 2012. Ms. Theroux also served as its Chief Human Resources Officer from 2006 to 2012. Ms. Theroux served on the board of Peirce College from 2001 until 2015 and was Chairman from 2011 until June 2015. Ms. Theroux has a B.S. from Syracuse University and an M.B.A. from Saint Peter’s University.

Rose Lee

Rose Lee

President and Chief Executive Officer

view Bio
Jeffrey S. Lee

Jeffrey S. Lee

Executive Vice President, Chief Financial Officer

view Bio
Matthew Ackley

Matthew Ackley

President, Commercial Solutions

view Bio

Rose Lee

President and Chief Executive Officer

Rose Lee has served as President and Chief Executive Officer since September 2021, joining the board of directors at the same time.

Prior to joining the company, Ms. Lee was President of the DuPont Water & Protection business where she led a diverse business creating water, shelter, and safety solutions for a more sustainable world. Ms. Lee joined DuPont in 2015 as Global Business Director, DuPont™ Kevlar® and Aramid Intermediates. In 2016, she assumed the role of President, DuPont Protection Solutions and was named President, Safety & Construction in 2017.

Prior to joining DuPont, Ms. Lee held senior leadership positions at Saint-Gobain in several General Management positions serving construction, transportation, energy and defense sectors, as Strategy Director and CIO of North America region. Prior to Saint-Gobain, she held various engineering and management positions at Pratt & Whitney, a United Technologies company. She also was a Senior Consultant at Booz Allen Hamilton in New York City.

Ms. Lee is a board member of Honeywell. She has served as a member of the Economic Advisory Council for the Federal Reserve Bank of Philadelphia, Inc., and is a member of Women Corporate Directors, Philadelphia chapter.

Ms. Lee earned a Bachelor of Science in aerospace engineering from Cornell University, a Master of Science in mechanical engineering from Rensselaer Polytechnic Institute, and an M.B.A. from the Massachusetts Institute of Technology.

Jeffrey S. Lee

Executive Vice President, Chief Financial Officer

Jeff Lee has served as Executive Vice President and Chief Financial Officer for Cornerstone Building Brands since June 2019. Prior to joining the Company, Mr. Lee was Senior Vice President and Chief Financial Officer of Wilsonart International since 2014. Wilsonart is a global manufacturer and distributor of decorative engineered surfaces like laminate, performance veneer and quartz surfaces for the commercial and residential markets. Before his role at Wilsonart, Mr. Lee was the Executive Vice President and Corporate CFO for Contech. He began his career at Eaton Corporation where he had a twelve year career with various finance and operational roles of increasing responsibility. Mr. Lee holds a bachelor’s degree from the University of Utah and an M.B.A from Duke University. He is also a Six Sigma Champion and received Lean Training at the University of Tennessee.

Matthew Ackley

President, Commercial Solutions

Matthew Ackley joined Cornerstone Building Brands as President, Engineered Building Systems on April 12, 2021 and was promoted to President, Commercial Solutions effective November 11, 2021. He brings with him nearly 20 years of accomplished leadership in the building materials industry. Most recently, Mr. Ackley served as Vice President, Sales for USG Corporation, overseeing its Commercial Ceilings and Corporate Accounts teams, where he led strategic planning, sales execution and revenue and profit growth efforts.

Mr. Ackley spent much of his career at USG Corporation, holding roles of increasing responsibility including: Vice President, Architectural Sales; Area Manager, Central; Sr. Manager, Investor Relations; Category Manager, Interior Walls – L&W Supply and several other roles in sales and operations. He holds a B.A. in Economics and Spanish from University of Redlands and an MBA from Pepperdine University.

Alena Brenner

Alena Brenner

Executive Vice President, General Counsel and Corporate Secretary

view Bio
Jason Flack

Jason Flack

President, Stone Solutions

view Bio
Melissa Jones

Melissa Jones

President, U.S. Siding

view Bio

Alena Brenner

Executive Vice President, General Counsel and Corporate Secretary

Alena Brenner joined Cornerstone Building Brands as Executive Vice President, General Counsel and Corporate Secretary on April 5, 2021, assuming the company’s legal, compliance and risk management functions.

Ms. Brenner brings with her more than 20 years of legal experience, most recently serving as Vice President and Deputy General Counsel for Ryder System, Inc., a transportation and logistics company.

Prior to her work with Ryder, Ms. Brenner was the Director of Commercial Law and M&A at the New York headquarters of Anheuser-Busch InBev (AB InBev). She previously spent over eight years at the New York City office of the law firm Hunton & Williams (now Hunton Andrews Kurth LLP) working in the Global Capital Markets and M&A group.

Ms. Brenner earned a bachelors degree in Industrial and Labor Relations from Cornell University and a juris doctorate from Fordham University School of Law. Ms. Brenner also serves on the board for Teach for America – Miami, a non-profit organization focused on recruiting outstanding and diverse leaders to teach in K-12 schools in low-income communities.

Jason Flack

President, Stone Solutions

Jason Flack joined Cornerstone Building Brands as President, Stone Solutions on December 1, 2021, with more than 20 years of leadership experience in the building materials and automotive industries. Most recently, Mr. Flack served as Vice President, Sales for Firestone Building Products for the Americas. He also served as a Regional Business Manager and Director of Corporate Accounts during his time at Firestone Building Products. Jason also held the role of Zone Vice President for Store Operations, as well as Director of Strategy, for GCR Tires & Service, a division of Bridgestone Americas Tire Operations LLC.

Prior to Firestone Building Products and Bridgestone, Mr. Flack spent 13 years with Saint-Gobain Corporation subsidiary CertainTeed, serving in a variety of sales and business development leadership positions in the Insulation and Fence, Railing and Deck divisions. He holds a Bachelor of Science in Journalism from the University of Kansas.

Melissa Jones

President, U.S. Siding

Melissa Jones joined Cornerstone Building Brands as President, U.S. Siding on July 1, 2022, assuming responsibility for the company’s residential siding and fence and rail business.

Ms. Jones brings more than 20 years of leadership experience and demonstrated success delivering revenue and profit growth through customer-centric organic growth strategies, M&A integration, operational excellence, and commercial excellence in the industrial machinery and electrical manufacturing industries. Most recently, Ms. Jones served as Group President, Commercial Water Solutions at Pentair, a global water treatment and solutions company, where she also held other various roles of increasing responsibility.

Prior to Pentair, Ms. Jones was Director of Product, Channel and Marketing at Generac Power Systems and Director or Marketing at Johnson Controls. She has also worked in corporate marketing functions at  Abbott Laboratories, Milwaukee Tool and Stanley Black & Decker.

Ms. Jones holds a Bachelor of Arts in economics from St. Mary’s Honors College of Maryland and an M.B.A from the University of Maryland.

James F. Keppler

James F. Keppler

Executive Vice President, Operations

view Bio
Philip Langlois

Philip Langlois

President, Canada Business Unit

view Bio
Colleen Pritchett

Colleen Pritchett

President, U.S. Windows

view Bio

James F. Keppler

Executive Vice President, Operations

James F. Keppler joined Cornerstone Building Brands as Executive Vice President, Operations, on September 21, 2020 and is responsible for the end to end supply chain and manufacturing functions of the organization. Mr. Keppler brings with him more than 30 years’ experience leading the manufacturing and supply chain operations of large, diverse organizations within the automotive and appliance manufacturing industries.

Immediately prior to joining Cornerstone Building Brands, Keppler served as Vice President, Integrated Supply Chain and Quality, for Whirlpool Corporation where he was responsible for the North American manufacturing, logistics, planning and quality functions.

In 2015, Keppler was the recipient of Purdue University’s School of Engineering Technology Distinguished Technology Alumni Award and has served on the Board of Directors for the National Association of Manufacturers. Keppler earned a bachelor’s degree in Mechanical Technology from Purdue University and a master’s degree in Manufacturing Management from GMI Engineering and Management Institute.

Philip Langlois

President, Canada Business Unit

Philip Langlois has served, since August 2019, as President of the Canadian Business Unit for Cornerstone Building Brands. Prior to this appointment, Mr. Langlois was employed by Marvin Windows and Doors of Canada, joining in 2010 as Chief Operating Officer and then as President & Chief Operating Officer. Previously, Mr. Langlois held numerous senior leadership positions in both manufacturing and supply chain roles with Richelieu Hardware, JD Irving and CP Ships, bringing 20 years of operational and change management expertise to Cornerstone Building Brands. Mr. Langlois served as a Naval Officer, graduating with a bachelor’s degree from the Royal Military College in 1992. He also earned an MBA from the University of Montreal – Ecole des Hautes Etudes Commerciales – in 1999.

Colleen Pritchett

President, U.S. Windows

Colleen Pritchett joined Cornerstone Building Brands as President, U.S. Windows on August 29, 2022, assuming responsibility for the company’s residential windows and doors business.

Ms. Pritchett has over 20 years of global leadership experience with demonstrated success improving operations and expanding product portfolios through innovation and growth strategies in the industrial, electronics and aerospace industries. Most recently, Ms. Pritchett served as President, Americas Aerospace, a division of Hexcel Corporation, where she was responsible for a P&L business valued at more than a billion-dollar P&L, as well as several thousand employees.

Prior to Hexcel, Ms. Pritchett spent 22 years in various roles of increasing responsibility with DuPont, where she gained extensive global and cross-functional leadership experience.

Ms. Pritchett received her Bachelor of Science in chemical engineering from Penn State University and an MBA from Goizueta Business School at Emory University. She also has leadership training from the Harvard Business School Leadership Program and Women in Governance Program at UCLA.

Susan S. Selle

Susan S. Selle

Chief Marketing Officer

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Alan Strassner

Alan Strassner

Executive Vice President, Chief Growth Officer

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Katy K. Theroux

Katy K. Theroux

Executive Vice President & Chief Human Resources Officer

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Susan S. Selle

Chief Marketing Officer

Susan S. Selle has served as Chief Marketing Officer for Cornerstone Building Brands, the merged NCI Building Systems and Ply Gem Building Products company, since November 2018. Before the merger, Ms. Selle served as Chief Marketing Officer for Ply Gem since July 2014. Before joining Ply Gem, Ms. Selle held senior marketing and brand leadership roles with Jarden Consumer Solutions (formerly Sunbeam Products) from 1998 – 2014. While at Jarden, she led global marketing, customer marketing, advertising strategy, category management, digital & social marketing, shopper marketing and portfolio brand management for leading brands such as Mr. Coffee, Crock-Pot, Oster, Sunbeam, Foodsaver, First Alert, Holmes, Margaritaville Products and Healthometer. Prior to joining Jarden, Ms. Selle was employed by Tyson Foods in Retail Product Marketing and Nestle Foods in Sales and Regional Marketing. She graduated from University of Missouri – Columbia with B.S in Marketing and Management and brings over 30 years of marketing experience with top Fortune 500 companies.

Alan Strassner

Executive Vice President, Chief Growth Officer

Alan Strassner has served as Executive Vice President, Chief Growth Officer for Cornerstone Building Brands since 2022.  His responsibilities include strategy, growth ventures, mergers & acquisitions, and integration.   Mr. Strassner previously served as the Senior Vice President of Strategy & Business Development for Cornerstone Building Brands since 2018 and the Vice President of Corporate Strategy for NCI Building Systems since 2015. Prior to working at Cornerstone Building Brands, Alan held various corporate finance & strategy roles at a family office and was employed by Ernst & Young from 2006 to 2011. Mr. Strassner holds an MBA from Rice University, Jones Graduate School of Business and an MSA/BBA from the Honors College at the University of Houston, Bauer College of Business.

Katy K. Theroux

Executive Vice President & Chief Human Resources Officer

Katy Theroux has served as Executive Vice President, Chief Human Resources Officer for Cornerstone Building Brands, the merged NCI Building Systems and Ply Gem Building Products company, since November 2018. Before the merger, Ms. Theroux served as the NCI Building Systems Senior Vice President, Marketing and Chief Human Resources Officer and joined NCI in 2014. Before joining NCI, Ms. Theroux was employed by 1WORLDSYNC where she served as Chief Marketing and Administrative Officer from 2012 to 2013 and was responsible for the integration of two multinational technology services companies. Prior to joining 1WORLDSYNC, she served as Senior Vice President, Customer Engagement & Solutions for its parent, GS1 US and 1SYNC from 2007 to 2012. Ms. Theroux also served as its Chief Human Resources Officer from 2006 to 2012. Ms. Theroux served on the board of Peirce College from 2001 until 2015 and was Chairman from 2011 until June 2015. Ms. Theroux has a B.S. from Syracuse University and an M.B.A. from Saint Peter’s University.