Premium performance rigid
phenolic insulation –
thermal conductivity as low
as 0.021 W/m.K
Class 0 / Low Risk fire rating
Negligible smoke obscuration
No requirement for a vapour
control layer
Quick response floor heating – prevents heat loss through ‘heat sump’
Minimises the cost of related
items – soil removal, DPM’s,
service connections
Resistant to the passage of
water vapour
Easy to handle and install
Ideal for new build and
refurbishment
Non–deleterious material
CFC/HCFC–free with zero Ozone
Depletion Potential (ODP)
Product Description
The Facings
Kingspan Kooltherm® K3 Floorboard is faced on both sides
with a plain (coated) glass tissue autohesively bonded to the
insulation core during manufacture.
The Core
The core of Kingspan Kooltherm® K3 Floorboard is a premium
performance CFC/HCFC–free rigid phenolic insulant of typical
density 35 kg/m3.
CFC/HCFC–free
Kingspan Kooltherm® K3 Floorboard is
manufactured without the use of CFCs/HCFCs and
has zero Ozone Depletion Potential (ODP).
Standard Dimensions 1200mm x 2400mm
Kingspan Kooltherm® K3 Floorboard is readily available from us in the
following standard thickness 40mm, 50mm, 60mm, 75mm, 100mm. The following thicknesses are available upon special order ... 20mm, 25mm, 30mm, 70mm, 80mm, and 90mm.
Compressive Strength
The compressive strength of Kingspan Kooltherm® K3
Floorboard typically exceeds 150 kPa at 10% compression and
125 kPa at 5% when tested to BS EN 826: 1996 (Thermal
insulating products for building applications. Determination of
compression behaviour).
Water Vapour Resistance
Modified to include board facings, the boards achieve a
resistance greater than 15 MN.s/g when tested in accordance
with BS 4370–2: 1993 (Methods of test for rigid cellular
materials. Methods 7 to 9). Kingspan Kooltherm® K3
Floorboard should always be installed over a separate damp
proof membrane (minimum 1200 gauge).
Durability
If correctly applied, Kingspan Kooltherm® K3 Floorboard has
an indefinite life. Its durability depends on the supporting
structure and the conditions of its use.
Resistance to Solvents, Fungi & Rodents
The insulation core is resistant to short–term contact with
petrol and with most dilute acids, alkalis and mineral oils.
However, it is recommended that any spills be cleaned off fully
before the boards are installed.
Ensure that safe methods of
cleaning are used, as recommended by the suppliers of the
spilt liquid. The insulation core is not resistant to some solvent–based adhesive systems, particularly those containing methyl ethyl ketone. Adhesives containing such solvents
should not be used in association with this product.
Damaged boards or boards that have been in contact with harsh
solvents or acids should not be used.
The insulation core and facings used in the manufacture
of Kingspan Kooltherm® K3 Floorboard resist attack by
mould and microbial growth, and do not provide any food
value to vermin.
Fire Performance
The rigid phenolic insulation core of Kingspan Kooltherm® K3
Floorboard will achieve the results given below, which enable it
to be classified by the Building Regulations as being Class 0
and as Low Risk by the Building Standards in Scotland.
The fire rating of Kingspan Kooltherm® K3 Floorboard boards
when subjected to British Standard fire tests, will vary, depending on the particular application.
Test - BS 476–6: 1989
(Fire tests on building
materials and structures.
Method of test for fire
propagation for products)
Result - 1989 Index of performance (1) not exceeding 12 and sub Index (i1) not exceeding 6 (for rigid phenolic insulation core)
Test - BS 476–7: 1997
(Fire tests on building materials
and structures. Method of test
to determine the classification
of the surface spread of flame
of products
Result - Class 1 rating
Test - BS 5111–1: 1974
(Smoke Obscuration)
Result - < 5%
Suspended timber floor insulation
Fixing floppy quilt insulation between floor joists can be difficult. Insulating a suspended timber floor is made easy using Celotex Insulation cut to fit between joists.
The specification of insulation for ground floors is more complex than that for walls or roofs. This is because the mechanisms for heat flow are affected by the ratio of surface area to perimeter.
With a suspended timber floor, there is little choice but to install the insulation between the joists, but the thermal bridges created by the joists have to be considered.
Continuity of the insulation must be ensured by packing the spaces between the external walls and the joists with insulation. The void below an insulated suspended timber floor must be well ventilated. The insulation must be cut to fit tightly between the joists to prevent heat loss.
A rigid phenolic board for use on ground-supported or suspended concrete ground floors is also suitable for use between the joists of suspended timber ground floors. Premium performance rigid phenolic insulation - thermal conductivity 0.021-0.024 W/mK. Class O / low risk fire rating. Requires no vapour control layer.