Every roof has its own specific nature. Either you choose to just have a roof or roof system. Let me open the differences a bit more. In a good roof system definition, you contractor must consider few important elements during installation.
A good roof ventilation system expands lifetime of the roof. Also, make sure that all fan pipes are connected to new installed exhaust vent and your stack flashings are new. Wall, counter, and chimney flashings must be replaced and sealed.
Residential & Commercial
Residential & Commercial