Contact Us! Whether it's determining how many vents are needed or where to place them, our Customer Service Team provides immediate support. Reach us toll free at:
(877) 324-0444
or fill out an information form on the Contact Us tab.


For your planning, design, installation, post-installation and customer education needs, O’Hagin offers a range free services:

Design & Architectural Support Services

  • A free attic ventilation analysis that calculates the number of vents needed based on known local building codes and offers specific recommendations for placement:
  • Quick Calculation Guide
  • Consultation services on an individual or group basis.
  • Onsite presentations to discuss how O’Hagin attic ventilation solutions can work for your clients.
  • Architectural Drawings
  • Three-Part Specifications
    • Division 7 – Thermal and Moisture Protection
      (Section 07 72 00 – Roof Accessories)

Custom Product Design

Custom ventilation system designs to match unique roofing or architectural challenges, including historic structure rehabilitation projects.

Pre- and Post-Installation Support

  • Meetings with homeowners, consultants, building code officials, or other members of your design and construction team.
  • Support regarding any aspect of our products before or after installation.

Architects & Builders Services

“We can create an innovative, handcrafted solution to meet even your most unique requirements.”