Re-boarding deck, there was no flashing under Vinyl siding, want to install

I need advice on how to install flashing and any other requirement as I re-board my deck. I tore off all my deck boards (5/4 x 6 inch) as they were rotten. The deck had an angle flashing attached to the outside (not under) the vinyl siding and on top of the deck boards. I tore off the flashing and underneath, on top of the vinyl siding they used some rubbery tar to waterproof it. The ledger of the deck was installed right on top of the vinyl siding. The joists of the deck are 24" apart. The structure looks good (deck is over 20 yrs old and 8 ft high). I want to install proper flashing under the vinyl and new deck boards, and new vinyl siding as the current one is badly stained by the tar. The siding can’t be removed at the level of the ledger as it is bolted in the middle of the vinyl siding panel, so I'm guessing I would need to cut it at the level of the ledger. I can then remove the top half of the siding. Put down waterproof membrane tape, then the z-vinyl flashing. How do I secure the lower half of the siding at the cut, put membrane on top of it and then the z-flashing. After that I can put new siding on, but what do I clip it into on the bottom? My first time doing anything with siding or decking, I'd appreciate your help in learning. I was going to put in new 5/4x6 PT pine, but since the joists are so far apart I'm thinking I should use 2x6. If I haven't described anything in good enough detail please let me know what else I should describe. submitted by /u/SerialSection [link] [comments]

Mar 26, 2025 - 20:18
 0
Re-boarding deck, there was no flashing under Vinyl siding, want to install
Re-boarding deck, there was no flashing under Vinyl siding, want to install

I need advice on how to install flashing and any other requirement as I re-board my deck.

I tore off all my deck boards (5/4 x 6 inch) as they were rotten. The deck had an angle flashing attached to the outside (not under) the vinyl siding and on top of the deck boards. I tore off the flashing and underneath, on top of the vinyl siding they used some rubbery tar to waterproof it. The ledger of the deck was installed right on top of the vinyl siding. The joists of the deck are 24" apart. The structure looks good (deck is over 20 yrs old and 8 ft high).

I want to install proper flashing under the vinyl and new deck boards, and new vinyl siding as the current one is badly stained by the tar.

The siding can’t be removed at the level of the ledger as it is bolted in the middle of the vinyl siding panel, so I'm guessing I would need to cut it at the level of the ledger. I can then remove the top half of the siding. Put down waterproof membrane tape, then the z-vinyl flashing.

How do I secure the lower half of the siding at the cut, put membrane on top of it and then the z-flashing. After that I can put new siding on, but what do I clip it into on the bottom? My first time doing anything with siding or decking, I'd appreciate your help in learning. I was going to put in new 5/4x6 PT pine, but since the joists are so far apart I'm thinking I should use 2x6. If I haven't described anything in good enough detail please let me know what else I should describe.

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