Upon investigating a spongy carpeted floor in an old house, I ventured into the basement and discovered that a support beam (9" wooden post standing in the dirt...) that was holding up a 3-sister 2x8 floor joist/beam was ridden with termite damage. Not to mention a 5ft section (that I could see) of the 3-sister 2x8 floor joist/beam. This joist runs the length of the house I believe. The sub floor is also toast in this area too.
So question is, what is the best way to fix the main floor joist/beam with termite damage? Can the beam be replaced just in the damaged area and then a sister joist on each side (now 5-sister 2x8) between the supporting columns? Or should you replace the entire 3-sister joist/beam the entire length?
Keep in mind this house is a massive 2-story, 44' wide x 64' long. Oh yeah, I was thinking about moving the house to a new foundation due to the crappy current foundation. I didn't see any evidence of the termites still occupying this area, but I didn't dig either.
All thoughts in good nature are welcome!!