Marathon Prevent
$97.65 – $105.15
- Super heavy duty PVC plastic for long life
- Exclusive one-way valve design to prevent moisture from re-entering the roof system
- Special insect resistant wire screen
- Pre-drilled flange for fastening to roof deck
Estimated Delivery:
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This product qualifies for free shipping to lower 48 states.
Factory Shipped
Typically ships between 3-5 business days.
Product Summary
The Marathon Premium Large Capacity heat weldable PVC Roof Vent for pressure/moisture relief of roof systems. Available in one way or two way that meets 1-150 or 1 – 300 National Venting Code in combination with inlet vents. The Pre-Vent design provides venting capacity to accommodate 327 sq feet of floor. The Pre-Vent is UV Stabilized to help reduce any deterioration and fading from the sun. To install the Pre-Vent properly, it has been designed with pre- drilled holes in the flange to attach the Pre-Vent to the deck. The Pre-Vent when used with mechanical venting should be insulated accordingly to assist in directing the release of internal condensation. The base of the penetration within the Pre-Vent should be sealed to maintain the integrity of the roofing system. See your membrane manufacturers for details. Venting capacity will be maintained through pipe sizes up to 80% of the diameter of the Pre-Vent.
RoofingDirect.com offers an excellent selection of high quality single ply ventilation products for your next roofing job. Our team has decades of industry experience and is ready to serve you. Please contact us, and we will be happy to answer any questions.
Features + Benefits
- Super heavy duty PVC plastic for long life
- Exclusive one-way valve design to prevent moisture from re-entering the roof system
- Special insect resistant wire screen
- Pre-drilled flange for fastening to roof deck
Warranty & Documents
Product Reviews
Marathon Prevent
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