Other Health Conditions. On rare occasions, being tired after a meal or simply sleepy all the time could be a sign of another health problem. Diabetes, anemia, underactive thyroid, celiac disease, food intolerance, and sleep apnea can make post-meal drowsiness worse.
Having a roofing contractor remove (and dispose of) old roofing materials, then install asphalt shingles runs about $1-$4 a square foot, or a total of $1,700-$8,400 for a typical ranch-style home (1,700-2,100 square foot, gently sloping roof).
Depending on the material you choose, asphalt shingles cost $150 to $300 per square as of 2014, according to BobVila.com. These shingles last 15 to 25 years before they need replacement, compared to concrete roof tiles, which last 50 years or more.