Which sign indicates potential UV damage in vinyl fencing?

• A. Cracking and fading
• B. Increased rust on metal components
• C. Shortened posts
• D. Discoloration of wood accents

Answer: (A)

UV exposure degrades vinyl by breaking down the polymer and pigments over time, which makes the material lose its flexibility and color. This photodegradation shows up most clearly as cracking and fading of the fence surface. The other issues don’t reflect UV damage in vinyl: rust on metal components comes from moisture causing corrosion, not sun exposure; shortened posts point to foundation or installation problems; and discoloration of wood accents relates to wood finishes or materials rather than the vinyl itself.