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Water seeping through from outside to the sunroom inside (via a cracked tiles).
- Photo # 1 is the backyard and is a tiled area. Under the tiles, its concrete. Sunroom is sitting on this tiled area.
- Photo # 2 is the sunroom.
- Photo # 4 is where the water sometimes sits and grout outside sunroom are worn out.
After the sunroom upgrade (Insulated wall and roof installation), water was entering from under the Sunroom's insulated wall and I used silicone outside and inside to seal the sunroom. There is a gutter about 2m away from the sliding door. The slope is slightly towards the Sunroom door hence the water during heavy rain sits near the door and slowly runs parallel to the door and make its way to the gutter. After the sealing, water did not enter the sunroom from under the wall. But now the water comes via this cracked tile (shown in Photo # 3 and # 5) inside the sunroom. It made a decent size puddle inside even though it looks a very small crack. Its definitely rain water and I get the impression that water is travelling via the outside grouts to inside tiles, not sure.
Question:
1) Undo n redo the tiles and fixing the slope will require a lot of effort\$$. Can the slope be fixed with reasonable priced alternative?
2) If slope can't be fixed with not-so expensive solution, how can I waterproof the outside tiled area so water can not penetrate the tiles\grouts and travel inside?
Appreciate your help. TIA.
Hello @upgrades
Welcome to the Bunnings Workshop community. It's sensational to have you join us, and thanks for sharing your question about your sunroom.
I suggest applying Sika 310ml White Sikaflex Pro+ Polyurethane Sealant - 310ml White where the aluminium frame and the tile meet. Apply a thick bead to the entire length to make sure that it is properly sealed. I then recommend using CPC 1L Shower Plug Sealant on the tile and grout outside. It is a clear, brush-on solution that waterproofs tiles and grout. Ideal for use on new and old showers or balconies. Make sure to wash the surface of the tiles with water and detergent before applying the sealer on top. Make sure that the tiles and grout are totally dry before you begin.
I also suggest sealing the tile crack with PC-11 56g White Epoxy Paste to prevent the damage from getting bigger. These would be my suggestions to stop rainwater from coming in especially if you are not ready to have your tiled area revamped properly.
Let me call on our experienced members @Dave-1 and @Nailbag for their recommendations.
If you have any other questions we can help with, please let us know.
Eric
Hello @upgrades
If the silicone seal near the aluminium door is still in good condition, then you can skip the Sikaflex portion. Once you seal the surface of the grout and tile with the CPC sealer it should stop water from flowing through the tile and grout. There is no need to regrout the tile gap unless it is damaged or parts of the grout is missing.
If you need further assistance, please let us know.
Eric
Good Evening @upgrades
Think Ive come late to the party 
But will throw in my thoughts of ways to fix the leak. Tho I would suggest that @EricL's suggestion is a better one as I hadnbt considered that sealer he has mentioned.
I was going to suggest to cut the grout around the small section of tile that has been broken, (dont break it more if possible) clean the area underneath it and around the tile. Then I was going to suggest to fill the area with some of Dunlop 250g White Ready To Go Tile Adhesive And Grout and replace the broken bit/bits.
Like I said I prefer @EricL 's solution His solution also solves the water through other tiles/grout joins.
Dave
