Become a TFP Supporter Pool Math Forum Rules Pool School
Results 1 to 11 of 11

Thread: Bond Beam Isolation

  1. Back To Top    #1

    Bond Beam Isolation

    Here is a poll of sorts to see how many builders always insist on the isolation of the bond beam via a mastic joint with foam as compared to those which say a) never or b) depends on situation. I have seen many pools with both methods and am just wondering who feels they lean toward which way and why? Even if you are a not a PB and at least own a IG pool, does your pool have this expansion/mastic joint where the pool deck meets the bond beam/coping?

  2. Back To Top    #2
    JasonLion's Avatar
    Join Date
    May 2007
    Location
    Silver Spring, MD
    Posts
    37,879

    Re: Bond Beam Isolation

    You definitely want an expansion joint between the deck and the bond beam.
    19K gal, vinyl, 1/2 HP WhisperFlo pump, 200 sqft cartridge filter, AutoPilot Digital SWG, Dolphin Dynamic cleaning robot
    Creator of PoolMath and Pool Calculator. Other handy links: Support this site, TF Test Kits, Pool School

  3. Back To Top    #3

    Re: Bond Beam Isolation

    Jason, I agree with you but it seems as if some installs have considered something like a channel drain away from the bond beam to act as enough "give" for the expansion/contraction of the decking on a solid pour. Thoughts? I do feel with a deck constructed of pavers on a sand bed would not require the expansion joint at the bond beam as per the many small gaps to allow for movement.

  4. Back To Top    #4
    Melt In The Sun's Avatar
    Join Date
    Oct 2009
    Location
    Tucson, AZ
    Posts
    3,899

    Re: Bond Beam Isolation

    We've seen many photos of solid slab pours, most with perfect cracks right at the edge of the bond beam. It really isn't something worth debating! You're correct regarding the pavers; my pool is the same way: about 2' of poured coping on the bond beam, then pavers. No cracks for me.
    11,200 gal, Pebble-Tec; Tristar 2-speed 1hp - Swimclear 325 ft2 cart - SWG - A & A in-floor cleaner - Heat pump. For the poolside cooking, a Yoder Wichita and a Big Steel Keg!
    TF Test Kits -- PoolMath -- Pool School
    Make each day your masterpiece. - John Wooden

  5. Back To Top    #5

    Join Date
    Sep 2012
    Location
    Lake Nona, Florida
    Posts
    386

    Re: Bond Beam Isolation

    ours is a paver deck that floats next to paver coping - a key reason we picked pavers was to avoid figuring out where to put the joints, then seeing the deck crack somewhere else.
    7500 gal gunite/stonescapes, iAqualink RS-8, Jandy 2HP VS-Flopro, Jandy 200 sqft Cartridge filter
    Pentair Intellichlor IC-40, Zodiac MX-8, Fafco solar panels
    DreamMaker X-500 Spa

  6. Back To Top    #6

    Re: Bond Beam Isolation

    There are always exceptions, but around here most pool builders are not pool engineers. Each builder has their own ways of doing things. Most of these solutions do not have basic engineering or science or testing to back them up. Consider seeking advice about soils or structures from a pool engineer.

    The web site referenced in the link below has some interesting pool engineering content. The second link discusses decking in relation to the pool shell/bond beam.

    http://www.pooleng.com/Minimizing-Swimm ... av-66.aspx

    Lizzy
    18,000 Gallon IG, Pebble Sheen, Quartzite coping
    Pentair 420 Cartridge Filter, 2HP Silencer, 400,000 BTU Heater, Platinum Legend Cleaner
    2x IntelliFlo VS pumps - Screenlogic Interface - Stenner 45MPHP10 15 Gal Bleach Injection
    TF100 + PoolCalculator + This Site!

  7. Back To Top    #7

    Re: Bond Beam Isolation

    Thanks for the replies. Lizzy, you brought out the big guns with your reference to Pool Engineering. I spoke with a team member of that company a few times and attended a few of their seminars at this past years expo. They are extremely knowledgable and their website is packed with must read info for PB's who are concerned with doing the project correctly the FIRST time.

  8. Back To Top    #8

    Re: Bond Beam Isolation

    Quote Originally Posted by cajuncpd
    Thanks for the replies. Lizzy, you brought out the big guns with your reference to Pool Engineering. I spoke with a team member of that company a few times and attended a few of their seminars at this past years expo. They are extremely knowledgable and their website is packed with must read info for PB's who are concerned with doing the project correctly the FIRST time.
    LOL, since you already knew the answer to your question, I'm gonna assign you one demerit for leading-the-witness.

    Web sites like pooleng.com are a must read for pool owners too, because the info helps owners ensure the builder is using appropriate materials and methods.

    All the best,
    Lizzy
    18,000 Gallon IG, Pebble Sheen, Quartzite coping
    Pentair 420 Cartridge Filter, 2HP Silencer, 400,000 BTU Heater, Platinum Legend Cleaner
    2x IntelliFlo VS pumps - Screenlogic Interface - Stenner 45MPHP10 15 Gal Bleach Injection
    TF100 + PoolCalculator + This Site!

  9. Back To Top    #9

    Re: Bond Beam Isolation

    I posted this thread because I do not have all the answers and can never have enough resources. That being said, I was beginning to wonder if there were other mindsets or methodologies passing me by in the industry when it came to this topic. I have been seeing so many pools done without the isolation, it is scary to think how many pools will be faltering in the near future. I plead "not so guilty" on leading the witness. HaHa!

  10. Back To Top    #10

    Re: Bond Beam Isolation

    Quote Originally Posted by cajuncpd
    ...I have been seeing so many pools done without the isolation, it is scary to think how many pools will be faltering in the near future...
    A homeowner in my neighborhood had a new 14,000 gal pool built last Spring. The PB built the shell, bond beam, and 3 ft wide deck (around the perimeter of the pool) out of gunite, with everything mechanically bonded using a web of rebar. Four weeks ago, the homeowner noticed the elevation of the pool at one end had raised an inch and there are some cracks in the gunite deck near the wall of the pool. The PB says moisture got under the deck and soil expansion exerted upward forces on the deck which then failed. PB says it's not covered because by contract, the owner is required to control and regulate moisture around and under the deck.

    A very unfortunate outcome for the homeowner.
    18,000 Gallon IG, Pebble Sheen, Quartzite coping
    Pentair 420 Cartridge Filter, 2HP Silencer, 400,000 BTU Heater, Platinum Legend Cleaner
    2x IntelliFlo VS pumps - Screenlogic Interface - Stenner 45MPHP10 15 Gal Bleach Injection
    TF100 + PoolCalculator + This Site!

  11. Back To Top    #11

    Re: Bond Beam Isolation

    Ignor, I am rendered somewhat speechless by your neighbors circumstances. I am sure that is exactly what the homeowner was monitoring for his new dream oasis. On top of learning the ins and outs of pool chemicals and how to properly mix the perfect margarita, just exactly how is the homeowner to monitor the amount of moisture penetrating the soil UNDERNEATH his deck?! Wow. What a heart break and head ache as we turn the corner and start eyeballing another spring/summer.

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •