I can be a bit of a “space case” myself, so I am pretty forgiving of others when they are forgetful. Many of the errors and omissions home inspectors find are related to simple acts of forgetfulness.
If you look closely at the following picture below of the plumbing vent piping, you can see how the pipe runs down hill toward the point where it goes up, increases in size, and then goes through the roof. It has sagged down because the pipe is now full of rain water. This obviously prevents proper venting of the drain vent.
The reason it is sagging is from the weight of the water but why? It is normal for rainwater to enter the pipe and then just drain down through the system just like any other water going down the drain. Notice where the two metal pipe straps have been cut at the last two hanger locations—left and right of where it goes up through the roof?
Why would anyone cut the brand new pipe supports in this brand new house?
The piping was installed before the finish roof covering was installed. By cutting the pipe straps, the pipe could be pushed downward to make installing the pipe’s roof flashing easier.
This is where the “forgetting part” comes in—and why even new construction needs to be inspected.
Charles Buell, Seattle Home Inspector
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