When it comes to roofing, understanding the number of shingle layers your roof can support is crucial for both durability and compliance with local building codes. Generally, most roofs can handle up to two layers of shingles, but this can vary based on the underlying structure and material. Factors such as weight, ventilation, and potential leaks play significant roles in this decision. It's essential to consider the long-term implications of adding layers versus a complete tear-off and replacement. Curious about the best approach for your home? Ask Improvi.ai for personalized guidance.