As a commercial property owner, it's crucial to keep an eye out for signs that our roof may need repair. Some red flags include visible damage like cracks, punctures, or blistering, which can lead to leaks and water damage. Additionally, if we notice sagging or pooling water on the roof, it could indicate structural issues that need immediate attention. We should also be on the lookout for higher energy bills, as this might mean our insulation is compromised. Lastly, if we see any growth of mold, algae, or moss, it's a sign that moisture is trapped and our roof may require repair.