Industrial building envelopes frequently present varied roofing profiles, spanning from traditional corrugated sheets to advanced standing-seam systems. Standard flashing boots often lack the localized surface contact area necessary to establish a reliable permanent seal over wide-profile metal ribs, leading to stress concentration and material fatigue at the fastener entry points. To prevent long-term moisture bypass, structural engineers require high-stability flashing layouts engineered for variable mid-sized penetrations.

The YS-134 roof flashing addresses this specialized demand by providing an engineered square-base profile optimized for pipe lines from 2-3/4" to 7" (70 mm to 178 mm).

Advanced Material Properties & Engineering Architecture

The technical integrity of the YS-134 framework relies entirely on its specialized material configuration and structural versatility:

Elastomeric Formulation: Available in high-density EPDM or high-temperature Silicone. The EPDM compound provides excellent ozone stability and resistance to ultraviolet degradation, while the Silicone version sustains physical flexibility under continuous thermal exhaust loads up to 240 degrees Celsius.

Technical Specifications

Product Model: YS-134

Applicable Pipe Range: 2-3/4" to 7" (70 mm to 178 mm)

Base Plate Dimensions: 250 mm x 250 mm

Material Configuration: EPDM + Aluminum / Silicone + Aluminum

Compliance & MOQ: RoHS Compliant, 100 Units Minimum Order Quantity

Quality Control and Installation Matrix

Ensuring long-term sealing performance relies entirely on precise aperture adaptation. Installers must trim the progressive conical bellows to a diameter slightly smaller than the pipeline to establish a rigorous mechanical compression fit. 

Frequently Asked Question:
Does the square design of the YS-134 provide better water diversion?
Yes. The 250 mm square configuration maximizes contact area on metal sheet flats, allowing an efficient layout for anchoring and creating a larger boundary area to divert rainwater around large high-rib corrugations