Before I fully dive into the secondary roof module I thought it might be interesting to return to the soffit and fascia discussion I was having back in 2017. It would be nice to have soffit and fascia added to the hip rafter roof modules.
However as I am reviewing my notes and previous posts I came upon one unresolved question.
Should the roof sheathing extend out over the fascia board or should it terminate at the sub-fascia as shown in this detail:
The reason this becomes an issue is that the calculations of an asymmetric hip roof factor in the width of the sub-fascia in order to line them up around the roof. If the sheathing extends pasts the sub-fascia to the fascia then the gutter line will drop a different amount for each roof plane depending on the pitch. However if the sheathing only extends to the extent of the sub-fascia then the calculations for the roof do not need to take into account fascia width.
I can have it work either way but I would like to focus on the most common configuration.
However as I am reviewing my notes and previous posts I came upon one unresolved question.
Should the roof sheathing extend out over the fascia board or should it terminate at the sub-fascia as shown in this detail:
The reason this becomes an issue is that the calculations of an asymmetric hip roof factor in the width of the sub-fascia in order to line them up around the roof. If the sheathing extends pasts the sub-fascia to the fascia then the gutter line will drop a different amount for each roof plane depending on the pitch. However if the sheathing only extends to the extent of the sub-fascia then the calculations for the roof do not need to take into account fascia width.
I can have it work either way but I would like to focus on the most common configuration.