Everything else Jotham did while he was king is written in The History of the Kings of Judah.
Everything else Rehoboam did while he was king is written in The History of the Kings of Judah.
It was Jotham who rebuilt the Upper Gate that led into the court around the LORD's temple. But the local shrines were not destroyed, and they were still used as places for offering sacrifices.
During his rule, the LORD let King Rezin of Syria and King Pekah of Israel start attacking Judah.
Everything else Jehoram did while he was king is written in The History of the Kings of Judah.