It is my understanding that finger jointed lumber should only be used in vertical studs and that it should not be used for rafters. When looking over a friends new construction home I noticed widespread usage of finger jointed lumber for the rafters. Is my understanding correct? If so, it seems that this could lead to premature failure of the roof.
As a secondary question - is there anything to be concerned about if the builder installed about 50% of the OSB sheathing with the “This Side Up” stamp facing down. I don’t believe this compromises the strength of the roof but I would not mind a second opinion before I report back to my friend.
Thanks in advance,