weberfloor unbonded system - Fibre Reinforced Levelling Screed
Verified by manufacturer 9 days ago
EPD
Certificate type
EPD
Certificate type
Fibre‑reinforced unbonded cementitious flooring system designed to provide a smooth, level substrate for the application of floor finishes in internal environments.
Application
For use as an unbonded cementitious flooring system in internal environments requiring a smooth, stable substrate for the installation of floor finishes.
Suitable for application over concrete and existing substrates where bonded construction is not appropriate, incorporating a separation layer to isolate the screed from the substrate.
Substrates shall be structurally sound and capable of supporting the unbonded system, with defects such as cracking, voids or instability suitably repaired to provide a stable base.
Typical applications include renovation and new-build projects requiring controlled build-up and compatibility with a wide range of floor finishes.
Not suitable for external use or as a final wearing surface.
Description
Fibre‑reinforced unbonded cementitious flooring system designed to provide a smooth, level and stable substrate for floor finishes, typically capable of achieving SR1 surface regularity.
Installed over a suitable separation layer, the system isolates the screed from the substrate and incorporates reinforcement to control shrinkage and minimise cracking. It is suitable where bonded construction is not appropriate and can be applied within a typical thickness range of 5–50 mm, subject to design requirements.
The system provides good dimensional stability and rapid strength development, allowing early foot traffic and timely installation of floor finishes, including moisture-sensitive coverings.
The finished surface is not intended to be left exposed and shall receive a suitable floor covering. For internal use only.
General information
Color | Grey |
Finish | Smooth |
Material | Cementitious |
Shape | Formless |
Length | Bespoke |
Width | Bespoke |
Height | Bespoke |
Warranty description | Ten year |
Uniclass | |
CAWS | K21/10 Wood laminate flooring K21/145 Composite laminate flooring K21/115 Wood laminate flooring K21/146 Laminate flooring M41/110 Terrazzo tiling M41/110 Terrazzo tiling M40/110 Tiling M50/130 Carpet tiling M50/15 Carpet tiling |
Product range |
Specification data - Unbonded cementitious levelling screed systems
Classification data | |
Preparation | Preparation of substrate for unbonded construction. |
Separation layer | Slip membrane. Guidance for specification option: Supplied by others. Insert requirements. Separating layer. Guidance for specification option: Supplied by others. Insert requirements. |
Reinforcement for crack control | Glass fibre reinforcement mats. Guidance for specification option: weberfloor 4945 glass fibre mesh.
|
Screed | Fibre-reinforced levelling screed mixes. Guidance for specification option: weberfloor fibre rapid 4320.
|
Surfacing layer | Manufacturer guidanceThe unbonded screed forms the finished surface of the flooring system and shall provide a smooth, level and stable base suitable for the application of the specified floor finish. The surface shall be finished to the required standard of regularity and shall be suitable to receive the selected floor covering in accordance with the floor finish manufacturer’s requirements. Supplied by others. |
Drying time | Two hours (foot traffic); 16+ hours (floor covering). |
Reinforcement | weberfloor 4945 glass fibre mesh reinforcement. |
Sustainability data
Clarity for low-carbon design
NBS LCA helps construction professionals measure environmental impact and identify low-carbon emission products for more sustainable projects.
Country of material origin | United Kingdom |
Country of product manufacture | United Kingdom |
Material | Cementitious |
Product certifications
Product certifications
EPD
EPD Certificate (weberfloor rapid floor screeds)
EPD
EPD Certificate (weberfloor standard floor screeds)
Literature
Literature type
weberfloor unbonded system - System spec card
weberfloor 4945 glass fibre mesh
weberfloor fibre rapid 4320 - Technical datasheet
Inspiration Guide
Solutions for construction - Introducing Weber
weberfloor application guide
Flooring Guide
Supply Chain Sustainability School Gold Status
ISO 14001:2015 Environmental Management System
ISO 45001:2018 Occupational Health & Safety Management System
ISO 9001:2015 Quality Management System
CPD materials
Introduction to Flowing Floor Screeds
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