FLEXIBILITY FOR EVERY SLAB
Free Joints with QPOD
When it comes to laying strong, durable foundations, flexibility is key—literally.
For slabs longer than 30 meters or with irregular shapes, a free joint system is your go-to solution to manage movement, reduce cracking, and maintain structural integrity.
Below we take a look at where free joints can be applied, and how they can be applied using QPOD.
Firstly, what is a free joint?
Just like most things in life, a slab needs room to stretch and bend. A free joint is a deliberate design feature that allows controlled movement in your foundation, ensuring long-term durability.
Free joints aren’t required for every project, but they’re essential in certain scenarios including:
- Large slabs: Slabs exceeding 30 meters in length are more susceptible to movement and benefit greatly from free joints.
- Irregular shapes: Complex or angular slab designs often create stress points that require controlled movement.
- Narrow corridors: Slabs in tight spaces, such as corridors narrower than 1.5 meters, need room to shift without cracking.
- Step-downs: If there’s a step-down more than 15 meters from the edge of the slab, a free joint can help maintain stability.
A free joint in place on a QPOD site in late 2024 in Maraekakaho, Hawke’s Bay.
Special Considerations for Cladding and Floor Coverings
When designing slabs with free joints, it’s critical to detail cladding and floor coverings appropriately. These materials, which cross the free joint, must be able to tolerate horizontal movement without cracking or damage. Key steps include:
- Flexible Connections: Use flexible sealants and appropriate detailing to account for movement across the joint.
- Correct Tolerances: Ensure materials are installed with tolerances that allow for the expected movement.
- Step-Down Solutions: If the floor incorporates a step-down, free joints must be used if the distance from the step-down to the slab edge exceeds 15 meters. This ensures the entire structure can flex without causing stress on materials.
By addressing these factors during the design phase, you can ensure your slabs performance.
How to Install Free Joints with QPOD
Installing free joints with QPOD is a straightforward process, designed to save you time while ensuring precision and durability. Here’s how to get it done:
For the full installation guide be sure to click the below link.
Free Joints and Design Flexibility
Designers, architects and builders know that no two projects are the same. Free joints provide the flexibility to accommodate unique designs, whether you’re working with irregular shapes, step-downs, or large slabs.
With QPOD, free joints are easy to incorporate into our CodeMark approved Continuous system – making life even easier for you.
Final Thoughts
In house design, details matter. Free joints in a slab might seem like a minor component, but their role in creating durable, flexible slabs is crucial.
Looking to learn more? Download our full installation guide below or contact our team today to learn more about how QPOD can help you.
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