Flex-O-Vent™
Flex-O-Vent is our most economical polyester-based ventilation product. Available in 10-foot and 20-foot rolls and multiple packaging options, Flex-O-Vent won’t absorb moisture, which can freeze and block all ventilation. It features M63 Marco proprietary adhesive for superior hold, easy one-person installation and a 40-year limited warranty.

Flex-O-Vent™
Flex-O-Vent is our most economical polyester-based ventilation product. Available in 10-foot and 20-foot rolls and multiple packaging options, Flex-O-Vent won’t absorb moisture, which can freeze and block all ventilation. It features M63 Marco proprietary adhesive for superior hold, easy one-person installation and a 40-year limited warranty.
Specifications
Net Free Area
23 sq. in. for 1” free-standing product
1- 1/2” x 3” x 10’
Rib heights up to 1-1/4”
1- 1/2” x 2” x 10’
Rib heights up to 1-1/4”
1” x 3” x 10’
Rib heights up to 3/4”
1” x 2” x 10’
Rib heights up to 3/4”
Air Permeability
>760 cubic feet per minute
Cold Cracking
-55˚C (-130˚F)
Tear Strength
3.5 ppi
Tensile Strength
16 psi – Elongation 175%
Compressive Strength
1.8 psi at 75%
features
Advantages of choosing Flex-O-Vent product
Extremely durable, flame resistant, clog resistant, and tear resistant.
Reliable protection
Prevents moisture absorption and holds together to keep out pests.
Ease of installation
Simple three-step process easily handled by one installer
Recycled material
Specially formulated polyester—manufactured from recycled material.
Brief installation guide
Step 1
Make sure panel is free of dust and debris. If not precut, cut 2” slot at ridge. Measure and mark where the ridge cap will sit on the panel.
Step 2
Start from the end of the ridge, rolling out Flex-O-Vent along the length of the ridge (both sides), making sure the vent sits “up-slope” from the edge of the ridge cap.
Step 3
Apply ridge cap, compressing material between the ridge cap and major rip. Fasten at the major rib using a screw gun set to at least 2700 rpm.
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