tile at the perimeter joint question

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A

Asking from Canada

Bronze Supporter
May 15, 2021
9
Hamilton, Ontario Canada
Pool Size
87000
Surface
Plaster
Chlorine
Salt Water Generator
SWG Type
Hayward Aqua Rite (T-15)
Unsure of how to go about this. We are retiling a portion of our pool and need expert advice as to what the proper procedure is in regards to joining the pool wall top tile and the underneath the decking tile. A hand drawing is for reference.

The concrete deck extends approximately 2 Inches overtop of the pool wall. There is a space (perimeter joint) between where the top of the pool wall ends and the bottom of the overhang of the deck. Approximate opening is from ¼ to 3/8 of an inch. How is this space handled? We are thinking of butting the tiles together and grouting them in, sealing this space. Is this correct? Should this space be filled in with mastic? Is there a problem if the bottom wall tile is cemented/glued to the deck tile?
 

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Welcome to TFP :)

I am not an expert but I am building my own all tile pool.. You are awesome because most people do not ask and use grout and it cracks and falls apart.. You are doing the following, In this chart it is a Perimeter joint .. In this manual they want you to use silicone and it will work perfect for about 7 to 10 years.. then once you have to reapply it will be almost impossible to get it all off and the new will not stick and protect that area...

I will be using Deck o seal one step DECK-O-SEAL ONE STEP - Polymer-Based Sealing Compound - Deck-O-Seal
ONE STEP is ideal for use in swimming pools above the waterline, where the tile meets the pool coping.
Click to expand...

I hope this helps :)

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Thank you Cowboycasey. You are correct, can't grout the top of the tile to the bottom of the overhang. Internet research shows that the silicone sealant lasts the longest and may be best for the Southern Ontario climate. If we tile up to the top of the wall and below the bottom of the deck, it would be a heck of a job to redo this space if the tiles are all the way up to the bottom of the deck . That would mean removing the first row of tiles. We are looking at putting in the rope in the bigger spaces, covering that up with sealent and then tiling to almost the top of the wall. And the section where the top of the wall tile meets the bottom of the deck tile to close the gap with sealent. TLC Accucolor 100 100% Silicone Sealent is what we are looking at.

I understand the problems with Silicone, but this looks like theiproduct that will take the longest to break down. I don't know if I am wrong in my logic.
 
I think most of this is how much research is done and then picking a product and go with it.. That is exactly what I am doing :)
 
I agree that research is key, but it does not replace experience and conversation. TFP forum is awesome. We have come from contractors telling us to totally demolish and construct new, to doing this ourselves. The pool does not leak and everything else seems to have a solution. The problem with internet research is that varied information to make an informed choice is not readily available. Maybe time to get a new search engine.
Cowboycasey you have been awesome in steering us in the right direction. Big thank you for that. And if we really mess up in this project, then we can always do a demolition job.
 
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