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Overlay to Raised Access Floor - Knauf Dry Screed Panel

Name: Overlay to Raised Access Floor - Knauf Dry Screed Panel
Brand: Access Floors Distribution
SKU: soxEUwrwdcHuuAv7oXduRT

Verified by manufacturer 1 day ago

Hugo 18

Access Floors Distribution

Product certifications:

Indoor Air Comfort – Eurofins
Certificate type
EPD
Certificate type
EPD
Certificate type

High-performance gypsum fibre dry screed panels for overlaying existing raised access floors, enabling direct application of hard or continuous finishes.

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BOS

01480 367096 Website

Application

The Knauf GIFAfloor Hugo & FHB18 Overlay System provides a low embodied carbon solution for projects where existing steel-encapsulated raised access floors require upgrading to support hard or continuous finishes.

Suitable Applications

Overlaying traditional raised access floors in office, commercial, or mixed-use spaces.
Projects requiring stone, porcelain, micro-cement, screed, vinyl, or linoleum finishes without the need for additional de-coupling layers.
Refurbishment projects where an existing RAF needs to be retained but upgraded for durability, safety, and finish compatibility.
Areas requiring improved acoustic performance, using the WF acoustic board to achieve 21 dB impact sound reduction.
General pedestrian areas (Hugo) or spaces requiring higher structural load performance (FHB18).

By transforming existing raised access floors into substrates capable of supporting modern hard finishes, the system offers specifiers a practical, sustainable, and durable alternative to plywood or cement boards.

Description

The Knauf GIFAfloor Hugo & FHB18 Overlay System is a high-performance dry screed solution designed to upgrade existing raised access floors (RAF) by providing a stable, non-combustible substrate for continuous or hard finishes.

Manufactured from low-carbon gypsum fibreboard, Hugo and FHB18 panels combine lightweight construction with high density and strength. The panels feature an advanced tongue-and-groove joint, enabling quick, screw-free installation while creating a robust, monolithic surface suitable for almost any finish.

Variants

GIFAfloor Hugo: Available in 18 mm and 23 mm thicknesses, with a density of 1100 kg/m³. Suitable for general pedestrian/foot traffic areas.
GIFAfloor FHB18: Higher density option at 1500 kg/m³, providing enhanced structural loading capacity and durability.

An additional Knauf WF 10 mm wood fibre acoustic resilient board can be used beneath Hugo or FHB18 to achieve impact sound reduction of 21 dB, creating an acoustically rated overlay system.

Features & Benefits

Directly accepts almost any finish (ceramics, porcelain, micro-cement, screed, vinyl, linoleum, and more).
Non-combustible fire rating for compliance and safety.
Quick and easy installation – tongue-and-groove panels lock without screws.
Excellent acoustic performance due to high density.
Lightweight and easy to handle on site.
Sustainable construction – low embodied carbon compared to timber or cement-based boards.
100% recyclable at end of life.
Eurofins Indoor Air Quality – GOLD, containing no harmful substances.
Optional acoustic enhancement with WF underlay for impact sound insulation.
An ideal alternative to plywood or cement boards in overlay applications.

Sustainability

Manufactured from a sustainable source, Hugo & FHB18 reduce environmental impact compared to conventional materials and contribute towards achieving green building accreditations.

General information

Color	Beige
Finish	Other Guidance for specification option: Hugo can accept almost any finish - including special finishes such as ceramics or resin.
Material	Gypsum
Shape	Rectangle
Length	1200 mm
Width	600 mm
Height	18 mm 23 mm 28 mm 33 mm
Warranty description	Lifetime

Uniclass	Pr_25_71_42_70 Raised access floor panelsPrimary
CAWS	K41/120 Raised access floor to BS EN 12825 K41/110 Raised access floor to MOB PF2 PS/SPU K41/130 Raised access floor K41/130 Proprietary raised access floor K41/315 Floor panels K41/315 Floor panels

SKU Code	K842b.de, K842c.de

Specification data - Raised access floor panels

Classification data
Fire performance	-
Fire resistance	F60.
Reaction to fire	To EN 13501-1, A2-s1,d0.
Core	Gypsum fibre panel.
Panel size	1200 x 600 mm.
Weight (maximum)	16.2 kg. Guidance for specification option: Weight per m²: 22.5 kg.
Panel fixing	Adhesive.
Thickness	18 mm.
Density	To EN-15283-2, ≥1100 kg/m³.
Water vapour resistance	To EN 14190, 10 μ (dry) 4 μ (wet).
Load	1.2—4.5 kN. Guidance for specification option: Concentrated Load 1 mm Deflection (Ø 50mm): 1.2 kN. Concentrated Load 2 mm Deflection (Ø 50mm): 2.5 kN. Concentrated Load 3 mm Deflection (Ø 50mm): 4.5 kN. Anything over typical pedestrian traffic or highly sensitive finishes refer to GifaFloor FHB Product.
Edges	Tongue and groove.
BendingStrength	To EN 15283-2, ≥5.0 N/mm².
Hardness	To EN 15283-2, ≤15 mm. Guidance for specification option: Surface hardness acc. to Brinell: ≥20 N/mm² (internal). Manufacturer guidance Surface hardness for panel type GF-I.
Water absorption	To EN 15283-2, ≤300 g/m².
Coefficient of thermal expansion	To EN 318, 12.9*10-6 1K.

Sustainability data

Contains Red List materials	No
Country of material origin	Germany
Country of product manufacture	Germany
Manufacturing plant location	74 Satteldorf, Germany
Material	Gypsum
Carbon dioxide equivalent
Carbon dioxide equivalent, as defined in BS EN 15804 Certified
Stage Normalised unit (kg CO₂ eq/kg) Declared unit (kg CO₂ eq/unit) Stage:A1–A3 ('Production stage') Normalised unit : Declared unit : 3.12 Lower emissions
Recyclability	100%
Recycled content As defined in clause 7.8 of BS EN ISO 14021	85 %
Expected Life	Lifetime