Fill & screed grades
Leca Fill 3–10
The standard grade for roof screeds and void filling.
- Grain size
- 3–10 mm
- Loose bulk density
- 380–450 kg/m³
Applications
Roof screeds & floor build-ups
Lightweight falls that double as a continuous insulation layer, without loading the slab.
A conventional pumice or site-mixed lightweight screed weighs 800–1,200 kg/m³. The same build-up in expanded clay weighs around 400.
Over a large roof that difference amounts to tens of tonnes of dead load removed, while producing a continuous layer of thermal insulation — no joints, no thermal bridges — across the slab.
Recommended grades
Fill & screed grades
Leca Fill 0–3
The fine fraction for lightweight blocks, mortars and floor screeds.
- Grain size
- 0–3 mm
- Loose bulk density
- 550–650 kg/m³
Reference projects
2024 Basra, Iraq
Lightweight block plant, Basra
Annual supply of fine aggregate to a non-loadbearing lightweight block line.
Volume supplied 26,000 m³
2022 Isfahan, Iran
Roof screed, Isfahan hospital
Falls and insulation in one layer across a 14,000 m² roof, adding no load to the existing slab.
Volume supplied 2,700 m³
Get a quotation for your project
Send us the specification, the volume you need and the delivery point. Our technical sales desk replies within one working day.