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.
1 Shingle is the generic term for a roofing material that is in many overlapping sections, regardless of the nature of the material. 2  Wood shingle, shingles sawn from bolts of wood such as red cedar which has a life expectancy of up to 30 years. 3  However, young growth red cedar has a short life expectancy and high cost.