What is the difference between trusses and rafters in my attic?
Trusses are triangular wood structures in your attic. They’re made of 2x4s or 2x6s, and has some braces that extend to the floor. Rafters are 2x4s or 2x6s that support your roof with no support bracing underneath. Generally, if you can walk around in your attic, you have rafters. If you have to crawl between some supports, you have trusses.
