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.
1 Removal of old roof shingles ($90 per square, which is a term used to represent 100 square feet). 2  Install new shingles ($115 per square). 3  Purchase new shingles ($80-$125 per square).homas K. ~ Pittsfield, Massachusetts. Thomas, I estimate that it could cost between $10,000 and $15,000 to replace a 2,500 square foot roof, which would be approximately $4-$6 a square foot.