Rafters and Trussess have the same quality of unless you have decided to opt for an exposed rafter look. There is a difference in the cost of having the Rafters or Trusses installed. Rafters are using dimensional lumber to hold up the roof and they are often built one piece at a time, and it is often done on-site.
Trusses allows you to create a vaulted ceiling. They are not very efficient at opening up space but in all they create the same space. Trusses need precise engineering and drawing in order to complete the project, so it takes longer to install than Rafters. They are built in factories and shipped, so are expensive to buy, but they are quicker to install. If the cost of installing Rafters is higher because of the skilled-staff hours involved, then it may be better to go for Trusses.
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