Failed Underlayment Beneath Concrete Tile
If your home was built between the early 1990s and roughly 2009, the underlayment is likely at or past the end of its service life even if the tiles look perfect from the ground. Tiles are durable, but the 30-year felt or fiberglass-mat underlayment beneath them saturates and fails first, letting water reach the roof deck long before any interior stain appears. Homes from the 1990s construction boom are now working through their first major underlayment-replacement cycle, and water can rot framing for years before an owner notices. Our technicians probe beneath lifted tiles during inspection to confirm deck condition before that rot spreads.



