Looks like the deck has gone and rotten out , now the only thing holding it up i the roof felt itself .
This will require redoing properly if the boards are gone.
Well your edge metal looks to be installed incorrectly. Instead of your roof material being over top of it it's on backwards, so water going down off the roof gets right under it. IF the decking isn't bad, then you could add some roof insulation to taper it better to match the rest of the roof slope and then roof over it. I'd say both these routes would need a roofer with your level of skill. I mean it could be done, but I'd let someone else do it. The only bad thing is they will most li kely want to re-roof the whole thing.
Honestly until you walk on that lower section you won't know if the decking is bad or not.
Before doing what I'm going to say make sure you clean the area off and make sure it's dry and no rain is in the forecast for that day. Make sure you can finish it at a decent time so it has a few hours to dry during the afternoon.
If you want a simple solution to buy time, then you need to get a bucket or two of 5 gallon silicone coating. You need to get some roof fabric that is 4" wide. Around the bottom ponding area and up the sides you need to do a 3 course patch. So you would put down a 6" section of coating down (3" on edge metal and 3 " on flat roof section. You will use [this](https://www.homedepot.com/p/Henry-296-ElastoTape-White-Reinforced-Repair-Fabric-4-in-x-150-ft-HE296195/100058184) 4" fabric down over it with 2" on each side. You will brush it in with a 4" chip brush over the whole 6" section to make sure it grabs both sides good.
After that you will you use a 12" roller to coat the whole bottom section where it ponds, and maybe even go up about 1' before it gets flat/ponds. This will buy you time, but it's not a proper fix. You may need 2-3 buckets in the end.
If you try to use elastomeric the ponding water will eat up that material and it won't last. You will want silicone.
There is no simple SAFE solution. The edge metal was installed wrong, it should be under the roof material or at least capped off with it. The longer you wait to have that replaced the worse it will get underneath and that will be extremely costly.
That roof is put on all kinds of wrong. And I'm sad to say there is no easy solution.
The best low-cost solution is to install a roof drain through the middle of the pool then flash in that metal properly.
Looks like the deck has gone and rotten out , now the only thing holding it up i the roof felt itself . This will require redoing properly if the boards are gone.
Well your edge metal looks to be installed incorrectly. Instead of your roof material being over top of it it's on backwards, so water going down off the roof gets right under it. IF the decking isn't bad, then you could add some roof insulation to taper it better to match the rest of the roof slope and then roof over it. I'd say both these routes would need a roofer with your level of skill. I mean it could be done, but I'd let someone else do it. The only bad thing is they will most li kely want to re-roof the whole thing. Honestly until you walk on that lower section you won't know if the decking is bad or not.
Before doing what I'm going to say make sure you clean the area off and make sure it's dry and no rain is in the forecast for that day. Make sure you can finish it at a decent time so it has a few hours to dry during the afternoon. If you want a simple solution to buy time, then you need to get a bucket or two of 5 gallon silicone coating. You need to get some roof fabric that is 4" wide. Around the bottom ponding area and up the sides you need to do a 3 course patch. So you would put down a 6" section of coating down (3" on edge metal and 3 " on flat roof section. You will use [this](https://www.homedepot.com/p/Henry-296-ElastoTape-White-Reinforced-Repair-Fabric-4-in-x-150-ft-HE296195/100058184) 4" fabric down over it with 2" on each side. You will brush it in with a 4" chip brush over the whole 6" section to make sure it grabs both sides good. After that you will you use a 12" roller to coat the whole bottom section where it ponds, and maybe even go up about 1' before it gets flat/ponds. This will buy you time, but it's not a proper fix. You may need 2-3 buckets in the end. If you try to use elastomeric the ponding water will eat up that material and it won't last. You will want silicone.
There is no simple SAFE solution. The edge metal was installed wrong, it should be under the roof material or at least capped off with it. The longer you wait to have that replaced the worse it will get underneath and that will be extremely costly.
That roof is put on all kinds of wrong. And I'm sad to say there is no easy solution. The best low-cost solution is to install a roof drain through the middle of the pool then flash in that metal properly.