I can help
Let me read your question a bit closer
If the floor joists are lifting up and warping, then they do need to be replaced.
Let me know if you have any more questions
If you feel you have received a satisfactory answer to your question, click the Rating button that is appropriate. Experts are credited for each adequately Rated answer they provide. If you have additional questions, please let me know. Thanks
Let me know if you have any more questions.