What does "retrofit roofing" involve?

Retrofit roofing involves installing new roofing materials over existing roofing systems without the need to remove the old materials completely. This approach can save time and costs associated with a full tear-off and replacement, while also minimizing disruption. Retrofit roofing is especially advantageous for building owners looking to upgrade their roofing system to enhance its performance or aesthetics without the labor-intensive process of dismantling the entire roof structure.

In this context, the other choices do not accurately represent the concept of retrofitting. Replacing the entire roofing structure is a full replacement rather than a retrofit. Applying new designs for visual improvement may not involve new materials specifically geared toward roofing performance. Reinforcing existing roofs generally pertains to structural support rather than the installation of new roofing materials as is characteristic of a retrofitting process.