Securing structural penetrations on profiled metal roof systems requires resilient sealing solutions capable of tolerating both severe environmental weathering and continuous mechanical displacement. Medium-diameter conduits, including commercial refrigeration lines, HVAC piping, and electrical cable bundles, undergo constant micro-movements due to thermal cycles and wind shear forces. Standard square-base flashing components often concentrate stress at their perimeter corners, risking localized tearing or adhesive separation over extended operational lifetimes.

The YS-26 roof flashing system eliminates these vulnerabilities by incorporating a continuous circular footprint specifically designed for pipeline outer diameters from 3" to 6 1/4" (75 mm to 160 mm).

Advanced Component Layout & Material Reliability

The operational durability of the YS-26 assembly depends on achieving uniform edge compression along mid-diameter structural joints:

Dual-Compound Resilience: Formulated in premium, high-density EPDM or high-temperature Silicone. The EPDM compound provides superior protection against solar ultraviolet radiation, long-term ozone cracking, and aggressive weathering conditions. The alternative thermal Silicone option preserves elastomeric characteristics under continuous operating exhaust conditions up to 240 degrees Celsius.

Technical Specifications

Product Model: YS-26

Applicable Pipe Range: 3" to 6 1/4" (75 mm to 160 mm)

Base Plate Layout: Diameter 240 mm Round Malleable Aluminum

Material Infrastructure: Premium EPDM + Aluminum / Silicone + Aluminum

Compliance Standards: RoHS Compliant, 100 Units Minimum Order Quantity

Quality Control and Engineering Installation

Achieving permanent weatherproofing integrity with the YS-26 relies on precise field execution. Installers must cut the flexible stepped cone to an aperture slightly smaller than the pipeline to establish a reliable compression interference seal. 

Frequently Asked Question:
What unique structural benefit does the Diameter 240 mm circular base on the YS-26 offer?
The round footprint prevents localized material pulling and corner lifting caused by cyclic pipe movement. Spreading mechanical loads across a continuous radius ensures long-term edge adhesion and eliminates premature fatigue gaps on metal panels.