Flex-O-Vent is our most economical polyester-based ventilation product. Available in 10’ and 20’ 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.
Overall
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%
Abrasion: No Damage
*Effective Net Free Area varies based on product height, panel profile and installation methods.
With Flex-O-Vent, one size fits most panels. Installation is a simple two-step process easily handled by one installer. Flex-O-Vent comes in easy-to-handle 10-foot rolls (mirroring most ridge cap lengths) or larger 20-foot rolls if you prefer. It is easily cut with scissors or a utility knife and a double bead of M63 adhesive holds Flex-O-Vent securely in place until the ridge cap is installed.
Make sure panel is free of dust and debris. If not pre-cut, cut 2” slot at ridge. Measure and mark where the ridge cap will sit on the panel.
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.
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.
Learn about our other ventilation products featuring our exclusive nonwoven polyester material, for long-lasting resiliency, moisture prevention and energy efficiency.
Dig deep with technical tools, reference charts, installation videos, and more.
