VACATION/SICK DAYS: For your first 3 years of service you earn vacation at 4 hours per pay period (26 pay periods per year) for a total of 13 days. After 3 years of service you earn 6 hours per pay period and adjusted to total 20 days per year. After 15 years service you earn 8 hours per pay period or 26 days a year.
1 For a 2,000 square foot roof, this amounts to a total cost of around $10,000 to $60,000.  Concrete roof tile costs are generally around $5 to $10 per square foot, or $10,000 to $20,000 for a 2,000 square foot roof.
The Costs. Minimum Cost: Approximately $.50 per square foot. Maximum Cost: Approximately $2 per square foot. The size of roofs vary immensely from a standard, urban roof measuring about 800-square-feet to suburban roofs, which often range above 1,500-square-feet.