How long does it usually take for repair tile (new) to fade and blend with the existing (old) tile on the roof?
Since there are a number of variables that can affect the weathering of tile, it is difficult to say precisely when a replacement tile will match the shade of the existing roof. Likewise, different types of tile will have different rates of weathering depending on whether they are surface colored or integrally colored. The weathering process happens gradually so I’m not sure that anybody has actually measured the rate of assimilation but I would expect that once the surface sealer has worn off, the tiles would be reasonably close in appearance. The sealer loss also occurs gradually depending on exposure but most of the visual effect of the sealer will be gone after five to ten years. It should also be noted that darker colored tiles are most likely to exhibit contrast between the color shades of the new and old tiles. If the contrast of the replacement tile is considered a significant problem, it is quite common to harvest tiles from another, ideally isolated and hidden, part of the ro