Screed

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Screed

Using Lytag® in screed systems can reduce weight by around 50%

 

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Technical Data
Sheets

City Hall, London, was built with Lytag

50% LIGHTER

Harrods uses Lytag®

Weight

Using Lytag® in screed systems reduces weight by around 50% compared to sand cement and anhydrite screeds (1060kg/m3).

Advantages for new structures: Reduced dead loads means less supporting structure is needed.

Advantages for new refurbishments: Allows a robust screed solution where weight is a problem.

Benefits: Less weight allows for greater flexibility in design. 

ONLY 0.04% SHRINKAGE

Lytag® was used for screed in Heathrow T5

Shrinkage

Using Lytag® in screed produces a material with very low shrinkage, typically 0.04%. 

Advantages: Large bays can be cast quicker and in a single operation, reducing the need for movement and day joints; fewer cracks. 

Benefits: Time and money savings.

REDUCED DRYING TIME, FASTER ACCESS

Pumping Lytag® screed at Heathrow Terminal 5

Drying

Lytag® screed's drying time is 3x quicker than sand cement and anhydrite screeds.

Advantages: Speeds up construction

Benefits: Floors can be used sooner. A quicker client handover.

DEEPER SCREED
WITHOUT THE RISK OF CRACKING

Lytag® screed was used for St Pancras Station upgrade

Depth of Levels

Lytag® allows a greater depth of screed to be used compared to normal sand / cement screeds. This enables levels, or falls, to be formed more easily.

Advantages: Greater flexibility in all screed projects; virtually no restrictions on use. 

Benefits: Offers a lightweight universal solution.

80% IMPROVEMENT IN THERMAL CONDUCTIVITY

Intercontinental Hotel, Westminster, was built with Lytag® screed

Heat Insulation

Lytag® dramatically improves the insulation capabilities of screed systems. Replacing sand cement and anhydrite screeds with Lytag® screed can reduce the thermal conductivity of that section by up to 80%. 

Advantages: Increased overall insulation capabilities.

Benefits: Reduced cost of additional insulation. Helps to meet Part L of building regulation.

6DB IMPROVEMENT IN
SOUND INSULATION

One Hyde Park was built with Lytag® screed

Sound Insulation

Using Lytag® the screed system produces voids which increase the sound insulation properties of up to 6dB compared to sand cement screed. 

Advantages: Reduction in sound transfer through floors in offices, hospitals, schools, theatres, residential, etc.

Benefits: Quieter buildings and cost savings. Helps to meet Part E of building Regulations.

Lytag® Screed can be used outside

Tottenham Hotspur's new HQ uses Lytag®  Screed

Outside Usage

Lytag® screed is cementitious, therefore hydro-dynamically stable.

Advantages: Lytag® screed can be used in outside locations unlike anhydrite screeds.

Benefits: It can be used in any circumstance.

Floor and roof screed

Summary
 
Compared to normal sand cement and anhydrite screeds, using Lytag® in screed systems:
  • Is 50% lighter;
  • Results in very low shrinkage, typically 0.04%;
  • Reduces drying time allowing faster access;
  • Allows a greater depth of screed;
  • Reduces thermal conductivity by up to 80%;
  • Increases sound inslutation by up to 6db;
  • Offers warmer, quiter buildings, substantial savings and
  • Greater design opportunities.