The method, plainly
Most of a concrete roof carries only itself. The filler slab is a simple, old idea - popularised in Kerala by Laurie Baker - that takes the dead weight out and leaves the strength in.
Less cement means less carbon and less cost; the inert fillers slow the sun's heat; and the ceiling arrives already finished, a quiet grid of terracotta overhead.
Why we reach for it
Roughly 20-25% less concrete and steel (indicative)
Lighter slab → smaller beams and columns
Filler voids slow heat into the rooms below
A textured ceiling that needs no finish
What it is made of
Terracotta tiles / potsReduced concreteSteel reinforcement
From ground to wall
A few unhurried moves, in the order we make them.
01
Map the tension zone
02
Place the fillers
03
Pour & reveal
On the ground
If this fits your land
And we will say honestly whether filler slab roofing belongs there.