Performs several functions, the most notable being end-to-end packet delivery, reliability, and flow control. There are TWO protocols in the Transport Layer: TCP and UDP.
In another case, the roofing and pavement consulting firm Benchmark presented a cost range from retail roofing projects it has examined. Benchmark reported on a majority of retail roofing projects it has looked at, roof replacement costs generally range from $3.50 to $6.50 per square foot.However, the cost depends on whether a project was aiming for roof recovery or consisted of a complete tear-off and replacement job.his post builds on one of earlier posts about commercial roof maintenance costs. How much does a commercial roof replacement cost? One study reports on a roof with average dimensions of 10,000 square feet, a new commercial roof can cost over $42,500, or over $4.25 per square foot.
As such, unless you are a roofer with a professional team, itâs best to hire a contractor. The size of the typical American roof is 22 to 26 squares, or 2,200 to 2,600 square feet. Removing old roof â Removing your old roof usually costs around $100 to $150 per square. (Remember that a square = 100 square feet.) However, some roofs have been simply installed over older roofs, making your roof two to three layers thick.