Our SMET LiteFlo® Lightweight Screed features in NI Builder Magazine Top 5 Liquid Screeds
What is SMET LiteFlo® Lightweight Flowing Floor Screed?
Benefits of SMET LiteFlo® Lightweight Flowing Floor Screed
- Pumpable – first of its kind available.
- Lightweight – high yield, 43kg per m2 at 40mm thickness.
- 30% weight reduction compared to standard calcium sulphate screeds.
- 70% weight reduction compared to traditional sand and cement.
- Absolutely ideal for application in high-rise buildings, over timber-suspended floors, timber-frame houses and in new builds and renovations.
- Smooth laitance-free finish.
- For application at thicknesses of between 20 and 70mm.
- Under Floor Heating – full encapsulation.
- Perfectly level floors – every time.
- Installed nationwide by Smet Supported Partners.
- Sustainable – as this calcium Sulphate binder naturally embodies less carbon than a cement-based binder.
- German-made.
- CE EN 13813: 2002
LiteFlo® is suitable for floors in homes, offices, public buildings, and places exposed to similar loads. LiteFlo® may be applied as a levelling screed directly onto a load-bearing floor, unbonded on a separating barrier (polyethene), as a floating floor and can be used in conjunction with underfloor heating or cavity floors. However, when using LiteFlo® in combination with underfloor heating, it should be noted that LiteFlo® has a low thermal conductivity.
LiteFlo® should be covered with a floor finish such as tiles, linoleum, parquet, cork, or carpet. If a cement-based adhesive or smoothing compound is required the surface of the screed must first be sealed, using an appropriate acrylic primer/sealer.
The significant weight reduction, combined with excellent pumpability, makes LiteFlo® ideal for timber frame builds, suspended timber floors, high-rise towers, apartments and multi-storey buildings.
Joris Smet, Director of Smet Building Products Ltd, tells us how the company’s innovative, CE-marked LiteFlo® Lightweight Flowing Floor Screed combines improved thermal performance with reduced environmental impact, making it possible to install underfloor heating (UFH) in applications where it may have been ruled out – such as restorations, renovations, retrofits, multi-storey and timber frame buildings.
‘SMET LiteFlo® is undeniably unique, being the first pumpable, lightweight, calcium sulphate based flowing screed available,’ Joris says, ‘It’s made from specially selected aggregates, making it 30% lighter than conventional flowing screed, meaning less material is required per m2. Additionally, LiteFlo’s low weight enables UFH to be installed in multi-storey timber frame buildings at reduced thicknesses, meaning UFH could be retro-fitted without substantially raising floor levels.’ Joris says, ‘When LiteFlo® is mixed on site to create a self-levelling, pumpable screed, it takes up water much more readily than a conventional screed, mixing smoothly and almost completely crystallising – up to 95% in 24 hours. Furthermore, LiteFlo® can be placed in reduced thicknesses, thereby delivering improved floor U-values.’
SMET LiteFlo® is unique in that it’s the first pumpable, lightweight flowing screed available. It’s made from specially selected aggregates, which makes it 30% lighter than conventional flowing screeds and 70% lighter than sand and cement, meaning less material is required per m2. LiteFlo® complies with EN 13813: 2002, is CE-marked and is available in 27Kg bags or bulk silos.
Read about SMET LiteFlo® in the Irish Construction News.
Related Downloads
TDS SMET LiteFlo® Lightweight Flowing Screed
Aftercare SMET LiteFlo® Lightweight Flowing Screed
EPD – LiteFlo® Lightweight Flowing Screed
SMET Floor Screed and Compounds Product Selector
Technical Details for SMET LiteFlo® Lightweight Flowing Floor Screed
| Screed Specification CA-C20-F4 as per EN 13813 | |
| Maximum Thickness | 70mm |
| Minimum Thickness | Bonded: 20mm Unbonded: 30mm Domestic: 35mm Commercial: 40mm Over Underfloor heating Pipes: 25mm (BS 8204-7) |
| Use | Internal only |
| Compressive Strength (28 days) | ≥ 20.0 N/mm² |
| Flexural Strength (28 days) | ≥ 4.0 N/mm² |
| Tensile Adhesion | > 1.5 N/mm² |
| Flow Rate | 240 – 260mm (slump flow – Hägermann cone) |
| Hardening Times (Light foot-traffic) | After approx. 12 hours; can be partially loaded after approx. 7 days |
| Hardening Time | Final Covering: approx. 2 – 6 weeks, dependent on thickness and drying conditions on site |
| Recommend water demand | 8 – 9 L per 27kg bag |
| Working Life | 45 – 60 minutes depending on ambient conditions |
| Thermal Conductivity (tabular value) | λR = 0.40 W/mK |
| Yield:Coverage: | 1.08 kg/mm/m²1 no.27kg bag of LiteFlo® will cover 1 m2 @ 25mm thickness. (1.08 kg/mm/m2) |
| Fresh (Wet) Density | 1,500 kg/m³ |
| Hardened (Dry) Density | 1,300 kg/m³ |
SMET LiteFlo® is supplied to sites in convenient 27 kg pre-mixed bags or in bulk site silos.
Check out SMET lightweight screed, lightweight flooring systems, and aggregates (void fillers) suitable for any building project.
