1-1/4" - 1-1/2" Roof Flashing, Hard Base

The IPS 81750 Roof Flashing provides dependable, watertight protection for 1-1/4 to 1-1/2 inch vent pipes with a durable hard plastic base designed for long service life.

Engineered for easy installation and lasting performance, this roof flashing features a flexible sealing collar and a rigid plastic base that resists cracking, corrosion, and UV damage. The IPS 81750 offers a secure, no-caulk seal around plumbing vent pipes, ensuring leak-free operation across a wide range of roof types and weather conditions.

• Model number 81750 identifies the IPS Roof Flashing for 1-1/4 inch to 1-1/2 inch nominal pipe sizes with a hard plastic base.
• Designed for roof vent and plumbing pipe penetrations in residential and commercial installations.
• Combines a rigid base for structural stability and a flexible sealing collar for watertight fit without caulking.

Technical Data & Performance

• Product Type: Roof Flashing.
• Pipe Size Compatibility: 1-1/4 inch to 1-1/2 inch nominal pipe diameters.
• Base Material: High-impact thermoplastic (hard plastic) – provides strength, rigidity, and weather resistance.
• Collar Material: Flexible elastomeric or PVC sealing collar – forms a tight seal around the pipe to prevent leaks.
• Finish: Black or gray molded plastic, resistant to UV and ozone degradation.
• Installation Type: No-caulk slip-fit design – easily slides over pipe; secures to roof deck using standard roofing fasteners.
• Roof Compatibility: Works with asphalt shingle, metal, or tile roofing systems.
• Roof Pitch Range: Fits standard roof slopes (typically 0/12 to 45° pitch).
• Temperature Rating: Suitable for continuous service from -40°F to 160°F (-40°C to 71°C).
• Weather Resistance: UV-stabilized base and flexible collar resist cracking, fading, and deterioration from sunlight exposure.
• Function: Provides leak protection at roof penetrations, preventing water intrusion around vent or plumbing pipes.
• Maintenance: Maintenance-free design; inspect during roof service intervals for debris or seal wear.
• Installation Method: Position over pipe and fasten base securely to roof deck under top shingle layer.
• Dimensions: Sized to fit 1-1/4” to 1-1/2” pipes with appropriate base coverage for standard vent openings.
• Application: Ideal for residential, manufactured home, and light commercial roofing systems.
• Compliance: Meets standard building and plumbing code requirements for roof penetration seals.
• Packaging: Supplied as a single molded flashing unit ready for installation.
• Warranty: Covered by the IPS Limited Warranty for material and manufacturing quality.