The existing assembly sets the limits of the next roof

Before comparing TPO, EPDM, PVC, modified bitumen, foam, or coatings, establish what is already on the building. Slope, moisture, deck type, drainage, and existing layers affect which options are practical.

Coating work depends on preparation, compatible materials, and a roof suitable for restoration. A recover needs an eligible substrate and a plan for penetrations, walls, edges, and drains. Where materials are wet or damaged, the scope should explain how they will be handled. Use the system pages below to compare those decisions, then send the roof history and access details for a review tied to the property.