Roof penetrations represent a primary vulnerability in solar photovoltaic (PV) installations. The YS-107 solar flashing delivers a heavy-duty, engineered weatherproofing solution designed specifically for multi-cable roof pass-throughs on profiled tile, slate, and corrugated roofing systems.

Technical Specifications & Key Features
Architectural Lead Base Plate (490 × 410 mm): The malleable lead substrate can be dressed by hand or tool to conform precisely to high-profile roof tiles and irregular slate surfaces without cracking, eliminating water-pooling channels beneath the flashing.

UV-Stabilized EPDM Collar: Formulated for harsh ambient conditions, the high-durability elastomeric collar withstands severe ultraviolet radiation and operating temperatures ranging from -40°C to +120°C.

Multi-Cable Interference Fit (4–8 mm Cable Diameter): Designed with individual tapered entry ports, each nipple creates a continuous 360° compressive seal around standard PV cables, isolating wires from mechanical abrasion caused by wind vibrations.

Primary Application Scenarios
Tile and Slate Roofing: Replaces improvised conduit entries with a seamless, watertight lap-joint integration.

Commercial & Residential Array Cabling: Accommodates multiple DC string runs (positive, negative, and grounding lines) through a single roof penetration point.

Frequently Asked Questions
Q: How does the YS-107 handle different cable counts?
A: Installers simply cut the closed tips of individual EPDM nipples to pass each cable, maintaining dedicated weather-tight seals for up to 10 lines.

Q: Is EPDM resilient to long-term outdoor exposure?
A: Yes. EPDM offers superior resistance to ozone degradation, moisture ingress, and thermal expansion over a standard 25-year system service life.