In the real world, concrete always cracks. Most cracks are caused by the shrinkage of the concrete mix as it cures. Properly designed and constructed concrete slabs have controlled cracking which poses little problem for tile when using Composeal GOLD for crack isolation. Since concrete can crack even after years of being in place, Composeal GOLD provides low-cost protection against costly cracking which may be caused by shrinkage, future seismic movement, vibration or slight settlement.
Cold Joints Occur where two separate concrete pours come together.
These are usually linear, closely joined and bonded. Simply bridge the control joint with the GOLD membrane and adhere to the slab. Industry standards dictate placement of expansion joints in tile works over cold joints. For information on expansion joints, consult the Tile Council of America Handbook, section EJ-171. Simply bridge the control joint with the GOLD membrane and adhere to the slab.