For example, if you had a batch file called stuff.bat and you typed stuff a b c d at the command prompt, the letters a, b, c, and d would be assigned to the variables %1, %2, %3, and %4, respectively.
Fiberglass shingles generally have a longer life expectancy than do asphalt shingles. Properly installed tiled roofs have a normal useful life of 20-30 years or longer, but individual pieces can become cracked or broken or the nails rust out.
2 thoughts on âHow long does each roofing material last?â. 1  i have a 3 ply fiberglass mat roof coated with white elastomeric coating. 2  We are looking to get a new roof and are wondering how long we will have to live in this house to get our moneyâs worth out of the investment. It is good to know that asphalt roofs should last from 12 to 30 years. Thank you for informing me that the life expectancy of a roof is also dependent upon the thickness of the shingles.