Oatey Company 11898 No-calk Roof Flashing 1-1/4x1-1/2 in

Product Description

The OATEY COMPANY 11898 is a thermoplastic no-calk roof flashing designed to create a double-seal, leak-free fit around residential and light commercial vent stacks. Built from a single piece of thermoplastic, the 11898 eliminates the need for caulk or sealants during installation, reducing labor time and long-term maintenance concerns. The flashing accommodates a 1-1/4 inch pipe diameter base with a 1-1/2 inch flashing dimension, making it a straightforward solution for sealing vent penetrations at the roofline. Each unit ships in a package quantity of 6 and weighs 3 pounds per package.

This flashing is used on residential and light commercial roofing applications where a vent stack penetrates the roof deck. It is suited for new construction and re-roofing projects where a clean, watertight seal around the vent pipe is required. The one-piece thermoplastic construction conforms to common roof pitches and provides a durable barrier against water intrusion at the pipe-to-roof interface.

Key Features

• No-calk design eliminates the need for sealant during installation
• Double-seal construction provides a leak-free fit around the vent stack
• One-piece thermoplastic body for durable, low-maintenance performance
• Compatible with cast iron, copper, plastic, and galvanized pipe types
• Meets UPC, SBC, and BOCA code requirements
• Sold in a package of 6 units

Compatibility

Fits all types of vent stack pipe including cast iron, copper, plastic, and galvanized. Rated for use in UPC, SBC, and BOCA coded installations.

Installation Notes

Installation is typically performed by a licensed plumber or roofing contractor during vent stack rough-in or roof replacement. Shut off any active systems before working around roof penetrations. The no-calk design requires no additional sealant, but the flashing should be properly seated and secured to the roof deck per local building code requirements. Follow all applicable plumbing and roofing codes, including UPC and local jurisdiction standards.

Technical Specifications

• Pipe Diameter (Base): 1-1/4 inches
• Flashing Dimension: 1-1/2 inches
• Material: Thermoplastic
• Construction: One-piece
• Package Weight: 3 pounds
• Package Quantity: 6 per package
• Unit of Measure: EA
• Certifications: UPC, SBC, BOCA

Standard Information

• Brand: OATEY COMPANY
• Manufacturer Part Number: 11898