Salary. During residency training, an OB/GYNâs annual salary may range from $45,000 to $60,000. Salary will increase with each year of training. After residency is completed, the starting salary is generally between $200,000 and $250,000 per year.alary. During residency training, an OB/GYNâs annual salary may range from $45,000 to $60,000. Salary will increase with each year of training. After residency is completed, the starting salary is generally between $200,000 and $250,000 per year.
copper and steel metal roofing is typically made of galvanized or stainless steel sheeting but copper sheets and tiles are also available the cost of a steel roof depends on the sheet profile the finish applied and the size and shape of your roof but offer excellent durability with a lifespan of 50 years or more copper offers an old world appeal to your roof as it ages to a pale green patina and can last up to 100 years
Single ply roofing installation does not require torching, used in Modified Bitumen installation, and therefore there is no fire hazard/possibility to burn down your home / business. There are 3 most-used single ply membrane systems present on the market today: PVC/CPA, EPDM rubber and TPO. Material Warranty Period: Up to 20 years Commercial / None for Residential. 2  TPO roof system life expectancy â 7 to 20* years. 3  Like PVC roofs, TPO systems also use the hot air welded seams technology to make the roof durable and leak free. 4  However, problems with the membrane formulation, are a source of many issues.