I have found termites in the house. Not new termites but old ones the previous owner already tented and killed, but the damages were hidden.
In one room there is an interior wall with 2x6 studs. It is load bearing. It is supporting the an A-frame roof on one end, so that wall is not a normal 8' tall wall, but on the edge it is 8' tall, in the middle it is 14' tall, then back to 8' on the other end. The height of each stud is different as it progresses from 8' to 14' in lengths.
Originally the wall was covered completely with T&G wood paneling which I removed and exposed the studs, top and bottom plates. I found two of the studs were damaged by termites. It was not apparent until I put my hand on one stud and felt the top surface of it being soft and I was able to poke a hole in it and piles of termite droppings (looks like sesame seeds) came out. I started to examine each stud very closely and found that only two studs were damaged that way and the termite infestation did not transfer to the roof trusses.
I then used a metal wire brush to brush out all the soft wooded area. There are good news and bad news. Good news is that the damages are not deep. Half an inch depth the most. I would say the two 2x6 stud has at least still 1.25"x4.5" of solid wood even in the worst part of it, but it does have sort of a "swiss chees" look.
I contemplated with replacing these two studs, but it would be very challenging. There are a lot of things happening around them. There are electrical boxes nailed onto them, other horizontal wood member nailed on to them that other pipes and conduits are tied to, on one side the sheet metal air conditioning vent seem to be glued to it with those foam spray insulation, they were also notches in a few spots for copper pipes and electrical conduits, I would need to unattach many things to get them out and replaced, and they are attached up top to the sloped top plate with some strange looking galvanized brackets (looks like some sort of Simpson StrongTie bracket).
A friend who is a structural engineer looked at it and said it's still fine. He said the holes the termites made are so shallow that they actually have less damage then the 3/4" notches made to run 1/2" pipes across. Plus the 2x6 is already oversized simply to accommodate a 3" vent pipe on that wall.
But these two studs have lots of holes along the two faces. When I put sheet rock on them the screw may not bite into much.
Should I bite the bullet and unattach everything and put in two new 2x6?
or should I do something else to help with the sheet rock installation which may have challenges due to these air pockets in the studs? For example, sister sections of vertical studs where I can?
Thanks in advance,