Aggregate patio separators need replacement?


Hello, Cindy here again. Our back patio surrounds the pool, which has several expanders needing replacement. Currently, the slats are wood, but after many years, have rotted out, or are gone completely. I figure, just measure each slat of wood necessary, cut to size, and use some form of outdoor adhesive glue or cement, Make sure to prep each empty area, so I felt it was a quick, easy job. My husband says we need to fill with some type of a silicone type glue, filling in each empty separator hole up even with the aggregate patio floor. In my mind, I see white tooth paste replacing the wood. That sounds cheap-looking to me. My Hub is smart and must have a reason, so I put to you the 2 option or any other idea anyone can offer. I will be doing the work so, cross my fingers, it really shouldn't be hard whatever is suggested. Thanks. Cindy,

  6 answers
  • William William on Oct 07, 2020

    Those are expansion joints. If the concrete was to crack from weather or movement it should crack at that joint. You can use pressure treated wood to fill the joints. Use caulk to hold them in. You can use colored caulk to fill them in but it may fail. They do make expansion joint filler you can purchase

    • Cindy Stearns Cindy Stearns on Oct 08, 2020

      Thank you so much. I did not know about the treated wood, but knew I wanted wood vs. that rubber "stuff". My husband said wood replacement is much harder...and would end up (25 yrs. later as it is now. Can you find the treated wood at Home Depot? I am there all the time, and many times, they will cut the wood for me. Our joint opening are at least 1/2 the depth and width of your gorgeous project. Do you for problems there. Also, I don't secure boards? I fear, even if I #!) deep even "trenches", since the existing boards are 3 /4 inch deep, won't they pop up after a hard rain? Thanks again sooooo much. Want to handle before it gets too cool. Cindy

  • Deb K Deb K on Oct 07, 2020

    Hi Cindy, I think this may help you out,

  • Chloe Crabtree Chloe Crabtree on Oct 08, 2020

    I would go with the wood to replace.

    • Cindy Stearns Cindy Stearns on Oct 08, 2020

      Thank you. Most all agree on the wood, which is my choice. I did learn to replace with "treated" wood to extend life and through off termite dinner.

  • Chas' Crazy Creations Chas' Crazy Creations on Oct 08, 2020

    I would replace the wood too.

    • Cindy Stearns Cindy Stearns on Oct 08, 2020

      Thank you. You are in the majority, AND agree with my original wishes. Did learn that I need to use "treated" slats, for longevity and terminte turn-off. Bless you.

  • William William on Oct 08, 2020

    The video from Deb K is perfect. Home Depot does carry treated wood.

  • Kathy Gunter Law Kathy Gunter Law on Oct 09, 2020

    Wood will need to be replaced again over the years so perhaps he is looking for low maintenance. Consider a compromise and do neither but fill in the areas with mortar.