Lomanco 905W Adjustable Louver Vent 8x8 Inch Aluminum

Product Description

The LOMANCO 905W is a white vari-pitch adjustable louver vent designed for residential roof installations. It accommodates roof pitches from 2.5/12 to 9/12, making it suitable for a wide range of sloped roof configurations without requiring a separate pitch-specific unit. The frame length spans 51-5/8 inches down to 42 inches in adjusted position, and the unit ships at 3.55 pounds. Construction is aluminum throughout, with pivoting blades that redirect wind-driven rain and debris away from the attic opening. A licensed roofer or general contractor typically handles installation as part of attic ventilation work.

The 905W is used in residential attic ventilation applications where a single louver must serve varying roof pitches. The adjustable design is especially useful in production roofing or re-roofing projects where pitch varies across a housing tract or across sections of the same structure. The 8 inches x 8 inches perma-coated screen limits insect and debris intrusion at the vent opening. The 1-1/2 inch wide mounting flange provides a secure bearing surface against the roof deck for flashing and fastening.

Key Features

• Adjustable pitch range from 2.5/12 to 9/12 eliminates the need for pitch-specific louver SKUs
• Frame adjusts between 42 inches and 51-5/8 inches in length to match pitch setting
• Aluminum construction resists corrosion and UV degradation
• Pivoting blades provide maximum weather protection against wind-driven rain
• 8 inches x 8 inches perma-coated screen blocks insects and debris
• 1-1/2 inch wide mounting flange simplifies flashing and fastening to roof deck

Compatibility

Designed as an OEM-style replacement or new-installation louver vent for residential sloped roofs with pitches between 2.5/12 and 9/12.

Installation Notes

Installation is typically performed by a licensed roofer or experienced contractor. Power or HVAC systems serving the attic space should be reviewed before cutting roof penetrations, and all flashing must be completed per local building code requirements. Fasteners should be driven through the mounting flange into solid roof decking, and sealant or roofing cement should be applied at flange edges per standard roofing practice. Do not install on roof pitches outside the rated 2.5/12 to 9/12 range, as blade alignment and weather protection will be compromised.

Technical Specifications

• Adjustable Frame Length: 42 inches to 51-5/8 inches
• Roof Pitch Range: 2.5/12 to 9/12
• Screen Size: 8 inches x 8 inches
• Mounting Flange Width: 1-1/2 inches
• Construction Material: Aluminum
• Color: White
• Weight: 3.55 pounds
• Package Quantity: 1

Standard Information

• Brand: LOMANCO
• Manufacturer Part Number: 905W