military operation - activity by a military or naval force (as a maneuver or campaign); it was a joint operation of the navy and air force. operation. activity - any specific behavior; they avoided all recreational activity.
1 Common materials for a wooden roof are red cedar shake shingles and yellow pine. 2  Expect to pay between $100 and $200 per square for wood shakes and shingles. 3  The price including installation is $200 to $325 per square foot.4  For an average-sized roof of 2,000 square feet, this works out to $4,000 to $6,500. Expect to pay between $100 and $200 per square for wood shakes and shingles. 2  The price including installation is $200 to $325 per square foot. 3  For an average-sized roof of 2,000 square feet, this works out to $4,000 to $6,500.
The most common are the asphalt types that cost around $80 to $100 per square. A square covers approximately one hundred square feet. There are also wood shingles or shakes (which are the types cut by hand instead of machine), and BuildDirect.com places the average cost of a square of cedar shingles at $160. There are also tile shingles and metal versions too.