Throughout building the addition, an inordinate amount of time was spent joining is to the existing structure. This is compounded when reaching the roof. This critical part where to roof lines join was done, redone and re-redone to satisfaction. Here having been demolished for the 2nd time.
Several tasks were accomplished today in preparation for a big sheathing push, and to get everything ready for the roofers.
Making holes to allow the air to flow under the roof.
Insect screen
Nice, tight & aerated 
And it’s time to get back into it. This flight of stairs shall serve as a warm up.
