Rotten deck joists

My deck had some loose boards, and underneath were some corrugated metal panels screwed to the underside to channel water into a gutter. After pulling them off I found what looks like some pressure treated boards sistered to rotten boards. Is this mold, termites, non pressure treated beams? I'm likely going to tear the whole deck down and start over, but im wondering if anyone knows what is happening. submitted by /u/Tightbutthole [link] [comments]

Jun 1, 2025 - 23:34
 0
Rotten deck joists
Rotten deck joists

My deck had some loose boards, and underneath were some corrugated metal panels screwed to the underside to channel water into a gutter. After pulling them off I found what looks like some pressure treated boards sistered to rotten boards. Is this mold, termites, non pressure treated beams? I'm likely going to tear the whole deck down and start over, but im wondering if anyone knows what is happening.

submitted by /u/Tightbutthole
[link] [comments]