Encoding specificity refers to Endel Tulvingâs notion that in order to successfully retrieve something from memory there must be a match between how information is originally encoded and how it is available when being retrieved from memory.
Shingle Roofing. Shingle Roofs last between 10 â 30 years in Phoenix depending on the quality of the material on your roof. Regular 3 tab shingles last between 10 â 15 years in Phoenix. Architectural or dimensional shingles are a lot thicker and can last from 15 â 30 years.
20 Year shingles rarely last 20 years without leaks. In my area where it is very hot in the summer and exposed to a lot of sunshine in all seasons, 20 year roofs are good for about 12 years usually. There are maintenance things you can do to prevent leaks, but not a lot you can do about aging of the shingles.