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Gypsol TimBRE self levelling anhydrite screed is made to exacting standards by quality assured manufacturers to BS EN 13813. It is a combination of high quality Gypsol binder, specially selected sands, water and special additives where required. It is designed specifically for use in acoustic and non-acoustic flooring systems which use timber joists as their primary supporting structure.

Gypsol TimBRE self levelling anhydrite screed is suitable for the encapsulation of an underfloor heating system, either electric or warm water. Gypsol TimBRE self levelling anhydrite screed is suited to both residential and commercial and will help to improve the acoustic performance of the floor to meet or exceed Part E of the Building Regulations (E&W). Gypsol TimBRE self levelling anhydrite screed also improves the environmental, fire resistance and durability characteristics and gives a concrete feel to a timber supported floor.

Gypsol TimBRE self levelling anhydrite screed is designed to be used in conjunction with a compressible or an acoustic resilient insulation and an acoustician should be consulted to approve the design prior to installation where acoustic performance is required.

General information





Offers a smooth flat and level surface for a variety of non-wearing applications, suitable for underfloor heating and acoustic flooring in conjunction with acoustic resilient insulation, ergonomically friendly installation, protein free


Anhydrite binder, sands, water, additives

Uniclass 2015 Ready-mixed self-smoothing calcium sulfate screeds (Pr_35_31_06_72)
Specification data
Product Reference

Gypsol TimBRE Self Levelling Anhydrite Screed

Standard product features

Physical properties:

  • Appearance: Off white fluid mortar.
  • Density: Wet – 2200 kg/m³, dry – 2000 kg/m³.
  • Minimum required strength: CA-C30-F6.
  • Required flow (to BS EN 13454-2): 230–270 mm.
  • Drying time (to <75% relative humidity (RH) at 50 mm depth): Natural drying 28 days; forced drying 13 days. Can take foot traffic 24–48 hours and loading 5–7 days (based on good drying conditions of 60% RH at 20ºC).
  • Fire rating: Class A1fl.

Application (minimum depth):

  • Bonded: 25 mm.
  • Unbonded: 30 mm.
  • Floating: 35mm domestic, 40 mm commercial.
  • Acoustic: 80kg at 40 mm.
  • Cover to conduits: 25 mm.

Gypsol screeds are suitable for use on most substrate types.


  • Recycled content: Binder – 98%, mortar – up to 40%.
  • Carbon emissions: Binder – 10–20 kg/tonne, mortar – 20–40 kg/m³.
  • VOC: Zero.
  • Recyclability: 100%.

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