Verified by manufacturer 1 day ago
FHB 25 - Pedestal System (1200 x 600 mm)
Indoor Air Comfort – Eurofins
Certificate type
EPD
Certificate type
Load-bearing tongue & groove gypsum fibreboard hollow floor system installed on pedestals. A1 non-combustible, sustainable, and suitable to receive finishes directly
The Knauf GIFAfloor FHB Hollow Floor Pedestal System is designed for commercial, residential and high-performance environments where durability, fire safety, and accessibility are essential.
Typical Applications
The Knauf GIFAfloor FHB Hollow Floor Pedestal System is a structural raised flooring solution that combines the benefits of dry screed technology with the versatility of a fully accessible hollow floor. Installed directly onto adjustable pedestals, the system provides a robust and sustainable substrate for continuous finishes such as stone, porcelain, and micro cement, while allowing partial access to the void beneath.
Material Composition
Panels are manufactured from gypsum fibreboard (calcium sulphate), using a blend of:
This process creates A1 non-combustible panels, delivering fire safety and durability, while maintaining a low embodied carbon footprint.
Manufacturing Process
GIFAfloor panels are pressed to optimum density through a lamination process, resulting in a dimensionally stable, inherently strong product. Tongue and groove edge profiles ensure secure interlocking, creating monolithic floors with excellent load-bearing performance.
Performance Benefits
System Flexibility
Also available to specify as a load bearing screed panel without pedestals - Knauf GIFAfloor FHB Self-Supporting System (for use with CLT, cradle & batten, or joists).
Color | Grey Beige |
Material | Gypsum |
Shape | Rectangle Square |
Length | 1200 mm 600 mm |
Width | 600 mm |
Height | 25 mm 28 mm 32 mm 38 mm |
Warranty description | Lifetime |
Uniclass | |
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 |
Classification data | |
System performance | Manufacturer guidanceStructural performance: Load Class 3–6 to BS EN 13213. Higher structural loadings possible - contact manufacturer. |
Subfloor preparation | Prime the unfinished floor surface. |
Support structure type | Knauf approved steel pedestal. Guidance for specification option: M16, M16ST, M20, M20ST2 or M20ST3 dependent on height and fire resistance requirement. Consult manufacturer for details and insert requirements. |
Pedestal fixings | 1-Part pedestal adhesive. T-Lock pedestal lock adhesive. |
Hollow floor surface | Gypsum fibreboards. |
Barriers in floor void | |
Fire barriers | Guidance for specification option: Consult manufacturer and insert requirements or omit. |
Acoustic barriers | Guidance for specification option: Consult manufacturer and insert requirements or omit. |
Plenum barriers | Guidance for specification option: Consult manufacturer and insert requirements or omit. |
Samples required | Manufacturer guidanceConsult manufacturer and insert requirements or omit. |
System accessories | Not required. Stringer for over 400 mm void. GifaBond blue panel adhesive. Guidance for specification option: (23/m² 1200 x 600 mm) (18/m² 600 x 600 mm). Knauf edge insulation strip mineral wool at perimeters. |
Accessories | Knauf PGR acoustic pedestal cap. Guidance for specification option: Approx. impact sound improvement 19 dB. GifaFloor pedestal cap. |
Load | 3.0 kN (S+R); 4.0 kN (S+R+X). Guidance for specification option:
Manufacturer guidanceWorking load. Higher loading, acoustic and fire resistance available using a double layer system "GifaFloor Plus". Consult manufacturer for further information. |
LoadSafetyFactor | To EN 13213, Class 2. |
Thickness | 25 mm. |
Panel size | 1200 x 600 mm. |
Density | To EN 15283‑2, ≥1500 kg/m³. |
Water vapour resistance | 30/50 μ. |
Edges | Tongue and groove. |
Strength | To EN 13892‑8, ≥1.0 N/mm². Manufacturer guidanceAdhesive tensile strength. |
Hardness | ≥40 N/mm². Guidance for specification option: Internal specification. Manufacturer guidanceSurface hardness (Brinell). |
Water absorption | To EN 15283-2, ≤300 g/m². |
Flexural strength | ≥8.7 N/mm². |
SpecificHeatCapacity | >1000 J/(kg∙K). |
ThermalConductivity | 0.44 W/m·K. Guidance for specification option: In conjunction with underfloor heating systems 0.30 W/(mK) λ10. |
Coefficient of thermal expansion | 12.9∙10-6 1/K. |
Panel weight | 29.6 kg. Guidance for specification option: Weight per m²: 40.6 kg. |
Reaction to fire | To EN 13501‑1, A1 (non-combustible). |
Fire resistance | To EN 13501-2, REI30. Guidance for specification option: At the same loading and void height, FHB32->FHB38 offers REI60 REI90 is achievable with double layer (FHB32+FHB18). Consult manufacturer for further information. Manufacturer guidanceTested at 2 kN/m² at void heights up to 640 mm. Higher loading, acoustic and fire resistance available using a double layer system "GifaFloor Plus". Consult manufacturer for further information. |
Impact sound reduction | ~13 db (without covering); ~26 db (with covering). Guidance for specification option:
Manufacturer guidanceSound improvement index (ΔLw,P). Higher loading, acoustic and fire resistance available using a double layer system "GifaFloor Plus". Consult manufacturer for further information. |
Standards | To BS EN 13213. |
Contains Red List materials | No |
Country of material origin | Germany |
Country of product manufacture | Germany |
Manufacturing plant location | |
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/m²) Stage:A1–A3 ('Production stage') Normalised unit : Declared unit 1.22 : | |
Recyclability | 100% |
Recycled contentAs defined in clause 7.8 of BS EN ISO 14021 | 80 % |
Expected Life | Lifetime |
NBS BIM Object Standard
This BIM object has been authored to meet the requirements of the NBS BIM Object Standard.
Find out more about the NBS BIM Object Standard.
Platform | Compatible | Version |
---|---|---|
![]() | - | 1 |
![]() | - | 1 |