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Lomanco PRO4-SWN OmniRidge Vent with Nails, 12 in. x 4 ft., 18 sq. in./ft. NFA, Black
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Lomanco PRO4-SWN OmniRidge Vent with Nails, 12 in. x 4 ft., 18 sq. in./ft. NFA, Black
The Lomanco PRO4-SWN OmniRidge Pro Vent is a shingle-over ridge exhaust vent in a 12 in. x 4 ft. section with 18 sq. in. of net free area per linear foot. Each carton includes nails for installation. Use it along the ridge with intake vents at the lower roof to exhaust damaging heat and moisture from the attic.
Key Features:
- 18 sq. in./ft. NFA: Delivers 18 square inches of net free area per linear foot of vent.
- Posi-tabs: Posi-tabs contour to shingles for improved weather protection.
- Enhanced weather protection: Designed for enhanced weather resistance along the ridge.
- Nails included: The SWN version ships with nails for installation.
- Black finish: Supplied in black to sit discreetly under ridge shingles.
Specifications Table:
| Specification | Details |
|---|---|
| Brand | Lomanco |
| Sell unit | 1 carton (12 in. x 4 ft. section with nails) |
| Product line | OmniRidge Pro Vent |
| Available sizes | 12 in. x 4 ft. |
| Color | Black |
| Net free area | 18 sq. in. per linear foot |
| Dimensions | 12 in. x 4 ft. per section |
| Design | Shingle-over ridge exhaust vent with Posi-tabs |
| Fasteners | Nails included |
| Intended use | Ridge exhaust attic ventilation |
Coverage & How Much You Need:
Each 4 ft. section provides 18 sq. in. x 4 = 72 sq. in. of net free area. Calculate the total ridge length needed from the required exhaust NFA, then balance with intake venting near the lower part of the attic.
Fit and Compatibility:
Install along the roof ridge in place of ridge cap shingles' under-vent and cap over it with ridge shingles. Must be used with intake vents located near the lower part of the attic space for proper airflow.
Frequently Asked Questions (FAQ):
Q: What is included in the carton?
A: One 12 in. x 4 ft. OmniRidge Pro Vent section in black with installation nails.
Q: How much venting does it provide?
A: 18 square inches of net free area per linear foot, or 72 sq. in. per 4 ft. section.
Q: Do I need intake vents?
A: Yes, the vent must be used with intake vents near the lower part of the attic to work properly.
Q: How is it finished on the roof?
A: It is a shingle-over design; Posi-tabs contour to the shingles for improved weather protection and ridge shingles cap the vent.
Q: Is it weather tight?
A: The vent is designed for enhanced weather protection, with Posi-tabs that contour to the shingles.
Expert Verdict — Reviewed by the SuperArbor Pro Desk
Ridge vents like the OmniRidge Pro give continuous, even exhaust along the peak and outperform spaced pot vents on long ridges. Compute the required NFA for the attic, divide by 18 per foot, and confirm the ridge is long enough before specifying. Cut the sheathing slot to the manufacturer's line, and pair with soffit intake so air actually moves.
Wear fall protection and eye protection when cutting the ridge slot and nailing the vent on the roof.
Add Lomanco PRO4-SWN OmniRidge vent with nails to your roof for continuous ridge exhaust ventilation.
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