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).
Removing old wooden shingles costs about 50 cents a square foot, while installing new shake or yellow pine shingles runs from $2 to $3.25 per square foot. Costs for a 2,000-square-foot roof are $1,000 for removing old material, and $4,000 to $6,000 for new shingles.