[Groesbeck Hurricane]

So weaving the valley gives less chance of ice dams? We did not have those issues in Southeast Texas...

Is weaving the valley a preferred method in Central Indiana???

I am not sure of zero leaks. There are water stains inside the north side of the home. I can access the attic area and there is zero warping of the wood. I could not see any rot. The builder left OSB exposed in the north side eaves. This has to be cut out and replaced. The north side is not under trees but it does receive the brunt of all the bad weather.

Is replacing only the north side roof considered an appropriate approach? I could not see replacing the entire roof. The other shingles seem to have life left in them. The roof has facings in all directions (N/S/E/W).

Flashing is missing around most windows. I did see some flashing on the front of the dormers where the shingles meet the top of the dormer. Flashing is no where to be found where any shingle meets gutters. Heck, there is ZERO decking under the end shingles. I am wondering if flashing would serve as both the decking and the flashing. You cannot step on the first bit of the roof for fear of falling through!! There is nothing there but shingle.

There are two vents, one on either side of the house in the peak of the wall, nothing in the roof that I can see. No center vents. When the house is re-roofed completely then vents will need to be installed. There is insulation against the drywall.

There are air leaks around the double pain windows in most locations as there is no flashing and most windows do not show signs of caulking. I can feel the breeze coming from around closed windows up stairs. Insects find their way inside.

This is, IMHO, criminal. There are some other structural short cuts that are truly PATHETIC. Roof beams not tied together. Two nails where the 2x4's in the roofing meet for the entire length of the roof. There is limited support to the roof beams other than where there is sheathing.

Instead of using 4" wide lumber (3.5") the builder stapled 2x4,6,8s (including ones that were 2' long) together to create 4" wide lumber for use as structural support. The 2x4,6,8's were never clad and were not screwed/stapled together in multiple locations. The end result is the lumber is starting to bow/warp. Some will need to be cut out and replaced. Most can likely have additional strapping/screws, paint for sealing, and clad to protect. Lots of corrective work that needs to be done. Lots of time and money...

Similar house nearby. The brick is flaking off the exterior. Literally, it is laying on the ground in pieces. The current owners keep a layer of paint on the brick. They had to put in a new roof and new eaves last year as they rotted out. 16 years old.

Yeah, they build homes differently now than 40 years ago... How do we go about fixing the issue short of re-roofing the entire home and putting down roof decking where none was originally installed?