Instead of being smooth and nearly featureless like a kidney or spleen, the cerebral cortex (the thin layer of gray matter forming the outer surface of the brain) is chock-full of wrinkles and folds.Click on the image above for a larger view.nstead of being smooth and nearly featureless like a kidney or spleen, the cerebral cortex (the thin layer of gray matter forming the outer surface of the brain) is chock-full of wrinkles and folds.
Depending on the type of your roof, geographic location, and the company or weekend warrior you choose to hire, the total installed cost of a composition shingles roof could vary between $2.75 to $7.50 per square foot installed.
Asphalt Shingle Roof Average Costs. The actual cost of an asphalt shingle roof may vary depending on the materials used, your location, the complexity of the installation (i.e. roof slope and home height), and other factors. 3-Tab asphalt shingles cost $1.50 to $3.50 per square foot. For an average-sized (1,500 square foot roof), the total cost might be $2,250 to $5,250. Architectural asphalt roof shingles cost, on average, cost around 20 to 40 percent more than 3-Tab shingles, or $2.50 to $5.00 per square foot installed ($3,750 to $7,500). High end architectural shingles, however, could run as much as $6 to $8 per square foot installed ($9,000 to $12,000).