🏠 The Foundation: Is Your Roof Ready for a 25-Year Solar Commitment?

Panels are designed to last 25+ years. If your roof is old, it must be replaced *before* the solar installation.

1. Roof Age and Condition

The roof must be able to support the weight of the panels and last the system's lifetime.

• ✅ **Shingle Life:** If your asphalt shingles have less than 10-15 years of life left, consider replacing them first.
• ✅ **Structural Integrity:** The installer will perform a structural assessment to ensure your trusses can handle the added weight (about 3-4 lbs per sq. foot).

2. Compatibility with Roofing Materials

Most racking systems are designed for common materials, but some require special mounting.

• **Asphalt Shingles:** Easiest and most common.
• **Metal Roofing:** Simple, often cheaper and faster, as no shingles need to be drilled.
• **Tile/Slate:** Requires specialized flashing and often takes longer, increasing labor costs.

The Warranty Issue

A good solar installer will offer a **roof penetration warranty** (often 10 years) that covers any leaks resulting from the installation. Always confirm this is included in your contract. 💡