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).
These prices typically cover installation only; the cost for removing and properly disposing of existing roofing shingles starts around $3-$5 a square foot or $510-$1,100 for a basic ranch-style home -- and costs go higher depending on the type of materials being removed, the location and the difficulty of the removal project.