Quarrix Multi-Use Vent 8-1/4 in. x 20 ft. Off-Ridge Intake/Exhaust Vent Roll, Black

The Quarrix Multi-Use Vent is a low-profile, black HDPE off-ridge vent roll, 8-1/4 in. x 20 ft. x 5/8 in., that works as both intake and exhaust ventilation. Sold as one 20 ft. roll, it adds on-roof intake to homes with no soffits or plugged soffits and solves tough exhaust challenges. The built-in StormStop Membrane lets air flow while keeping weather out of the attic.

Key Features:

• 3-in-1 ventilation: Functions as an intake vent, an exhaust vent and an off-ridge alternative to ridge vent.
• StormStop Membrane: StormStop Membrane allows airflow while preventing all forms of weather from entering the attic space.
• Durable HDPE: Highly durable HDPE material performs over the long run in all climates.
• Low profile design: Low profile vent virtually disappears on the roof deck.
• No-soffit intake: Adds on-roof intake by cutting a slot in the roof deck and installing anywhere on the lower 1/3rd of the roof.
• Off-peak exhaust: Exhausts roof-to-wall spots and suits vaulted roofs or multifamily homes with a large center beam or firewall.

Specifications Table:

Coverage & How Much You Need:

One roll provides 20 linear ft. of vent; for no-soffit intake, install it anywhere on the lower 1/3rd of the roof over a slot cut in the deck. Size the total vent length to the roof’s ventilation requirement and plan net free area per the manufacturer’s guidance.

Fit and Compatibility:

Use with standard roof deck installation over a cut slot; pairs with attic ventilation planning on homes without soffits, vaulted roofs with a center beam, and roof-to-wall exhaust locations. Ridge vents, soffit vents and fasteners are handled separately.

Frequently Asked Questions (FAQ):

Q: What is included in one order?
A: One 20 ft. roll of Quarrix Multi-Use Vent, 8-1/4 in. wide x 5/8 in. high, in black.

Q: How does it provide intake without soffits?
A: Cut a slot in the roof deck and install the vent anywhere on the lower 1/3rd of the roof for on-roof intake.

Q: Can it be used as an exhaust vent?
A: Yes, it exhausts roof-to-wall spots and works off-peak for vaulted roofs or multifamily homes with a large center beam or firewall.

Q: What keeps water out?
A: The StormStop Membrane allows air to flow while preventing all forms of weather from entering the attic space.

Q: What is it made of?
A: Highly durable HDPE that performs in all climates.

Q: How do I calculate how much I need?
A: One roll covers 20 linear ft.; determine your required intake/exhaust length from your ventilation calculation and divide by 20 ft. rolls.

Expert Verdict Reviewed by the SuperArbor Pro Desk

This vent is the simplest fix for homes with no soffits or plugged soffit vents: cut the deck slot low on the roof and run the roll for balanced intake. On vaulted ceilings with a center beam or firewall where a ridge vent cannot run continuously, use it off-peak as exhaust instead. Fasten per the manufacturer’s instructions and integrate the top edge with underlayment or membrane so water sheds over the product, not under it.

Cutting roof deck slots requires care to avoid cutting structural members; follow the manufacturer’s installation instructions and local building and ventilation codes.

Order the Quarrix Multi-Use Vent 20 ft. roll for flexible on-roof intake and exhaust ventilation.