Owens Corning

Breathe.

Optimize Airflow in your Attic

Properly ventilating your attic is one of the best ways to increase the longevity and performance of your roof. As part of a VentSure® Balanced Air Ventilation System of intake and exhaust, the VentSure® InFlow® Vent helps reduce heat and moisture buildup that can lead to ice damming and roof deterioration. The InFlow® Vent is an ideal solution for roofs without soffits or used as a supplemental intake on roofs requiring additional ventilation. Keeping your attic well-ventilated may even reduce your energy costs.*

  • Durable construction for long-lasting performance
  • A bottom-intake design that helps protect against wind-driven rain up to 110 MPH
  • An ideal solution for soffit-less, exposed-rafter homes and homes without adequate air intake
  • Helps minimize the impact of ice damming
  • Blends into roofline with a low-profile design
  • Complements VentSure® Ridge Vents for balanced intake and exhaust
  • As a key component of a VentSure® Balanced Air Ventilation System, the VentSure® vents are an essential part of the Total Protection Roofing System^.
Download Brochure
Closeup portion of a roof with a separate callout/photo of the VentSure® InFlow® Vent showing where it’s installed at on the edge of the roof

Technical Information

Net Free Vent Area

40 sq. in. per strip / 10 sq. in. per lin. ft.

Nominal Length

48" / 4 ft.

Nominal Width

15"

Nominal Height

1"

Allowable Roof Pitch

4:12 to 16:12

* Cost savings may vary.
^ Excludes non–Owens Corning® roofing products such as flashing, fasteners and wood decking.

Ventilation Requirements

In order to create a consistent flow of cool, dry air through your attic, you need to make sure the air has a way to come in and go out: intake and exhaust. It’s important there is a balance between the intake and exhaust ventilation to help ensure air flows smoothly and efficiently.

Vent Calculator

Applicable codes and standards

  • ICC-ES AC132
  • PRI ER 1378E03
  • Florida Product Approval
  • FBC - TAS100(A) Wind-Driven Rain up to 110 MPH
  • TDI Approved For Use in Windstorm Catastrophe Areas

Total Protection Roofing System®

Total Protection is more than shingle deep

It takes more than shingles to protect your home. It takes an integrated system of components and layers designed to help perform in three critical areas.

  • SEAL Helps create a water-proof barrier
  • DEFEND Helps protect against nature's elements
  • BREATHE For balanced attic ventilation
Excludes non-Owens Corning® roofing products such as flashing, fasteners and wood decking
See the System
Find a Contractor

Roofing Products & Contractors

Where to Buy
Find a Contractor
Contact Us

Contact Us

Even though we’re a global company, we’re always ready to answer your questions. Call to speak with an Owens Corning representative so you can start your project right away.