Penetration

Term from Roofing industry explained for recruiters

In roofing, penetration refers to any object or structure that passes through the roof surface, such as chimneys, vents, pipes, or skylights. Proper handling of roof penetrations is crucial because these areas are common sources of leaks if not correctly sealed or flashed. When candidates mention penetration work in their resumes, they're typically referring to their experience in installing, sealing, or maintaining these critical roof features. This is an essential skill in roofing as nearly every roof has multiple penetrations that need to be properly waterproofed.

Examples in Resumes

Specialized in waterproofing roof penetrations and penetration flashing installation

Managed complex penetration sealing projects on commercial roofs

Installed and maintained various penetration types including vents, pipes, and skylights

Typical job title: "Roofers"

Also try searching for:

Roofing Technician Commercial Roofer Roofing Specialist Roof System Installer Waterproofing Specialist Roof Maintenance Technician

Example Interview Questions

Senior Level Questions

Q: How do you handle complex penetration installations on large commercial projects?

Expected Answer: A senior roofer should explain their experience managing multiple penetration types, coordinating with other trades, ensuring proper drainage, and maintaining water-tightness while meeting building codes.

Q: What's your approach to troubleshooting penetration-related leaks?

Expected Answer: Should describe systematic approach to identifying leak sources, different testing methods, and various repair solutions based on penetration type and roofing material.

Mid Level Questions

Q: What types of flashing do you use for different penetrations?

Expected Answer: Should be able to explain various flashing types (lead, copper, aluminum) and when each is appropriate based on the penetration type and roof system.

Q: How do you ensure proper spacing around roof penetrations?

Expected Answer: Should discuss minimum distance requirements between penetrations, considering drainage patterns and maintenance access.

Junior Level Questions

Q: What safety measures do you take when working around roof penetrations?

Expected Answer: Should mention basic safety practices like fall protection, proper tool handling, and awareness of surroundings when working near openings.

Q: What are the basic steps in sealing a simple pipe penetration?

Expected Answer: Should be able to describe basic process of cleaning the area, applying appropriate flashing, and sealing properly.

Experience Level Indicators

Junior (0-2 years)

  • Basic penetration flashing installation
  • Simple pipe boot installation
  • Basic safety procedures
  • Assist with maintenance and repairs

Mid (2-5 years)

  • Multiple penetration type installations
  • Complex flashing systems
  • Leak detection and repair
  • Quality control inspection

Senior (5+ years)

  • Project planning and oversight
  • Complex commercial installations
  • Training and supervision
  • Technical problem-solving

Red Flags to Watch For

  • No knowledge of different flashing types and their applications
  • Lack of safety awareness around roof openings
  • Unable to explain basic waterproofing principles
  • No experience with common penetration types (vents, pipes, etc.)