
What it is
Concrete and masonry grow and shrink with heat and moisture. In long buildings or large slabs, joints break them into parts that can move. The gap is filled with a flexible filler and sealed.
Key points
- Needed in long buildings and large terraces
- Runs through the structure, not just the surface
- Filled with compressible board and sealant
- Must be waterproofed on terraces
Why it matters
Chennai's hot sun makes terraces expand a lot. Missing joints mean cracks and leaks; badly sealed joints leak too.
How Elamentt handles it
Where the design needs expansion joints, we detail and waterproof them with the terrace.