Skip to contentSkip to footer
  • Community
  • Jobs
  • Companies
  • Salaries
  • For Employers
      Notifications

      Loading...

      Elevate your career

      Discover your earning potential, land dream jobs, and share work-life insights anonymously.

      employer cover photo
      employer logo
      employer logo

      GAF

      Part of Standard Industries

      Engaged Employer

      About
      Reviews
      Pay & benefits
      Jobs
      Interviews
      Interviews
      Related searches: GAF reviews | GAF jobs | GAF salaries | GAF benefits
      GAF interviewsGAF Co-Op Process Engineer interviewsGAF interview


      Glassdoor

      • About / Press
      • Awards
      • Blog
      • Research
      • Contact Us
      • Guides

      Employers

      • Free Employer Account
      • Employer Center
      • Employers Blog

      Information

      • Help
      • Guidelines
      • Terms of Use
      • Privacy & Ad Choices
      • Do Not Sell Or Share My Information
      • Cookie Consent Tool
      • Security

      Work With Us

      • Advertisers
      • Careers
      Download the App

      • Browse by:
      • Companies
      • Jobs
      • Locations
      • Communities
      • Recent Posts

      Copyright © 2008-2026. Glassdoor LLC. "Glassdoor," "Worklife Pro," "Bowls," and logo are proprietary trademarks of Glassdoor LLC.

      Company Bowl sample

      Want the inside scoop on your own company?

      Check out your Company Bowl for anonymous work chats.

      Bowls

      Get actionable career advice tailored to you by joining more bowls.

      Followed companies

      Stay ahead in opportunities and insider tips by following your dream companies.

      Job searches

      Get personalized job recommendations and updates by starting your searches.

      Co-Op Process Engineer Interview

      Jul 5, 2021
      Anonymous employee
      Baltimore, MD
      Accepted offer
      Positive experience
      Average interview

      Application

      I applied through college or university. I interviewed at GAF (Baltimore, MD) in Jan 2018

      Interview

      Full day of interviews at the plant with plant manager and engineering staff followed by a plant tour and lunch with the staff. Got a call back within the week and started the co-op a few months after.

      Interview questions [2]

      Question 1

      Tell me a time when you worked in a team Knowledge of process engineering Something technical you did
      Answer question

      Question 2

      Process engineering and behavioral questions
      Answer question

      Other Co-Op Process Engineer Interview Reviews for GAF

      Process Engineer Co-Op Interview

      Aug 29, 2025
      Anonymous employee
      Ennis, TX
      Accepted offer
      Positive experience
      Average interview

      Application

      I applied through college or university. The process took 2 weeks. I interviewed at GAF (Ennis, TX) in Feb 2024

      Interview

      Round-robin style interviewing with many different managers over the course of 1+ hours with a lunch break included in the middle. You also had the chance to speak with former co-ops and ask questions.

      Interview questions [1]

      Question 1

      Explain a situation in which you needed to learn a new skill to accomplish a new job/task.
      Answer question

      Process Engineer Co-Op Interview

      Sep 2, 2020
      Anonymous employee
      Accepted offer
      Positive experience
      Easy interview

      Application

      I applied through college or university. The process took 3 weeks. I interviewed at GAF

      Interview

      6 small interviews. It was an all-day event that started off with a presentation by HR and some of the engineers, a little bit about the company, then we got to tour the plant. After the tour we were sent off to do interviews, basically, I had roughly a 25-minute interview with one person, then once time was up I was sent to the next room with a different interviewer and so on and so forth.

      Interview questions [1]

      Question 1

      Basic questions about my resume, work experience, leadership, etc. Nothing out of the ordinary
      Answer question