Clear answer
Clear answer, explained.
The assessment checks roof load capacity, waterproofing condition, and remaining service life. If the roof is nearing the end of its lifespan, replacing or reinforcing it before installing solar is usually recommended to avoid future removal and reinstallation costs.
Key points
What this means in practice.
- Older roofs can support solar if structurally sound
- Roof load capacity must meet engineering requirements
- Remaining roof lifespan should align with solar system life
- Repairs or replacement may be recommended before installation
- Installing solar on a failing roof increases long-term costs
- Structural engineering sign-off is commonly required
When this applies
Best-fit environments.
- Commercial buildings with roofs older than 10–15 years
- Warehouses, offices, retail, and industrial facilities
- Flat or low-slope commercial roofs
- Sites considering long-term solar ownership or
Q·01
