Lomanco® Omni-Wall™ Vent

Turbine installation

The Lomanco® Omni-Wall™ Shingle Over Vent offers functional ventilation for where your roof joins a wall. The OW-4 may also be used in a contemporary shed roof (mono-slope/single-slope) application.


The OW-4 is designed for maximum weather protection, offering internal aerodynamic curved baffles with external perpendicular omni baffles. An external water shield and four drain holes per foot are also incorporated into the design of the vent. The OW-4 offers 9 square inches of Net Free Area per linear foot and comes with a Limited Lifetime Warranty.

Easy Installation

The OW-4 is designed to fit any roof pitch from a 2/12 to a 16/12. Installation is made easy with supported nail holes, molded nail lines, alignment tabs, slot width guide lines, and molded-in end plugs.

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Lomanco® Omni-Wall™ Model OW-4

  • Internal aerodynamic curved baffles.
  • External perpendicular omni baffles.
  • Weatherproof underlapping joint.
  • Four drain holes per foot.
  • 9” Net Free Area per linear foot.
  • External venturi baffle.
  • Pre-formed to 3/12 pitch.
  • Supported nail holes.
  • Molded nail lines.
  • Alignment tabs.
  • External water shield.
  • Slot width guide lines.
  • Molded-in endplug fits all roof pitches.
  • High grade, high impact UV resistant material.
  • Designed for maximum weather protection.
  • Lifetime Limited Warranty.

Lomanco® Omni-Wall™ Vent Instructions

Model Name Description Link
LOR-30 Lo-OmniRoll Roll Up Ridge Vent View/Print/Download
LOR9-4 Lo-OmniRidge Lo-profile Ridge Vent View/Print/Download
LOR9-4 Tile Lo-OmniRidge Flat Tile Ridge Vent View/Print/Download
OR-20 OmniRoll Roll Up Ridge Vent View/Print/Download
OR-4 OmniRidge 4' Stick Ridge Vent View/Print/Download
LPR Lo-Profile-Ridge Aluminum Ridge Vent View/Print/Download
VUR Val-U-Ridge Aluminum Ridge Vent View/Print/Download
KIT Metal Roof Ridge Kit for LOR-30 View/Print/Download
OW-4 Omni-Wall Shed Roof Vent View/Print/Download
OW-4 Omni-Wall Single Slope Roof Install View/Print/Download

Lomanco® Omni-Wall™ Vent Information

Lomanco® Omni-Wall™ Vent Specifications

Click to view Color Codes chart.

Model Color LTH. (ft.) NFA (in.2) CTN. QTY. CTN. WT. (lbs.)
LPR-8 MF-WH-BR-BL-WB 8 144 10 Sections/80 ft. 52.5
LPR-10 MF-WH-BR-BL-WB 10 180 10 Sections/100ft. 66.5
VUR-10 MF-WH-BR-BL-WB GR 10 180 10 Sections/100ft. 48
VUR-10 Copper 10 180 5 Sections/50ft. 57.5
L-Plug - - - 24 1
V-Plug - - - 24 1.25
LPR Strap MF-WH-BR-BL-WB - - 18 1
LPR HStrap MF-WH-BR-BL-WB - - 18 1.75
VUR HStrap MF-WH-BR-BL-WB GR - - 18 1
OR-20 Black 20 360 1 Roll/20 ft. 13.66
OR-4 Black 4 72 10 Sections/40 ft. 30.5
OR4-S Black 4 72 10 Sections/40 ft. 31
OR4-N Black 4 72 10 Sections/40 ft. 33.25
LOR-30 Black 30 330 1 Roll/30 ft. 16.25
LOR9-4 Black 4 44 10 Sections/40 ft. 17
LOR9-4FR Black 4 44 10 Sections/40 ft. 17
OW-4 Black 4 36 10 Sections/40 ft. 30.5

How Many Ridge Vents?

' sq ft.
*Pick Your Roof Slope:
* Slope input is only used in A series and 900 series style gable vents.
Required Exhaust NFA:

Lomanco® OW-4 Video

Area Market Managers Only.