When replacing a tile roof, you have two main options:
Roof Overlay: Involves installing new tiles directly over the existing tiles. This method can be faster and less expensive, but it can also mask underlying problems with the existing roof structure and may reduce the lifespan of the new roof.
Roof Tear-Off: Involves completely removing the existing tiles, underlayment, and flashing before installing the new roof. This is the preferred method for most tile roof replacements because it allows for a thorough inspection and repair of the roof deck, ensures proper installation, and results in a longer-lasting and more reliable roof.