It is the responsibility of not only the worker and contractor to ensure safety but the owner and his representatives on site. Safety barriers or warning lines are also mandatory on all construction sites greater than one storey. Thermaco offers full time inspection or part time inspection. Full time means will be on site just after completion of the tear off and will leave with the roofer at the end of the day when the building roof is water tight. Part time inspection is based on 2 - 3 hours of inspection at strategic times of the day.
Good drainage is one of the key factors in maintaining a good roof.
We try to incorporate in our design at least one roof drain for every 3 - 4,000 sq. A general rule is the roof should be dry 48 hours after a rainfall to have good drainage. I have experienced deck corrosion in the past. The roofing contractor treated my rust with asphalt primer he had on site. Asphalt primer is not a protective coating for rust.