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.
Shingles in cooler climates such as the northern United States seem to last longer than those installed in the warmer climates. Studies have shown that the average lifespan for a 20 year shingle in Phoenix, Arizona is around 14 years. In Minneapolis, Minnesota the lifespan was 19.5 years. And in Reading, Pennsylvania, the lifespan was 20.8 years.