PICTURES OF DEFECTS
Drain waste vent pipe boot is improperly terminated. Reducing the 2" pipe to a 1/4" opening. If the drain waste vent pipe doesn't get sufficient air the water can be siphoned out of the "P" trap (under a sink) allowing sewer gases to come through the drainpipes and into your home.
Water running off of other roof surfaces into this valley cannot drain off the roof because the hip ridge dams the valley. Water will flow over metal flashings and into the wall or attic.
The furnace vent pipe doesn't have a secondary boot on it. Water running down the trough of the tile will run in the hole around the vent pipe and under the tile. Once under the tile water will find an opening in the roof deck and flow into the attic. The secondary boot would divert the water back on top of the roof tiles.
Drain waste vent pipe is not sloped back toward the drain. Rain water coming down the vertical pipe will set in the low spot of the pipe and not allow air into the drain system (see comment in photo to left).
Insulation depth gage as seen from the attic access. It shows 14" of insulation, minimum required for a R-30 value of this type insualtion.
Insulation depth gage as seen from the back of the depth gage. Black flashlight in insulation is 12". Insulation around the attic access opening is 14" (minimum requirement) in the rest of the attic it is 10 to 11".
Metal flashing around a chimney. It is bent down behind the top of the tile (red arrow) allowing water to run off the side and under the tile instead of off the end and back on top of the tile. Water running under the tile will find an opening in the roof deck and flow into the attic.