The Pocket Guide
To Insulation
August 2013
Introduction
Knauf Insulation is the UK’s leading manufacturer of
insulation products, including:
• Earthwool® glass and rock mineral wool
• Polyfoam® ECO extruded polystyrene (XPS)
and Floorfoam® extruded polyethylene (XPE)
Our knowledge and experience has allowed us to create
the industry’s widest range of products for thermal, acoustic
and fire protection insulation. This means we can offer
sound, practical advice, giving you confidence you’ve been
recommended the best possible insulation system for your
project.
This guide shows only a selection of our insulation products.
For further information on our wider product range please
contact 08700 668 660.
Knauf Insulation’s core glass and rock mineral wool range
is now unified under one name - Earthwool®.
Earthwool utilises the groundbreaking binding process of
ECOSE® Technology to create a new generation of products
with new levels of usability and sustainability.
ECOSE Technology is a revolutionary, new, formaldehyde
free binder technology, based on rapidly renewable
materials instead of petro-based chemicals. It reduces
embodied energy and delivers superior environmental
sustainability. ECOSE Technology was developed for glass
and rock mineral wool insulation, but offers the same
potential benefits to other products where resin-substitution
would be an advantage.
2
Contents
Roofs
Walls
Floors
Roofs
Cold roof
4-5
Warm roof6
Walls
Masonry cavity walls
Timber frame walls
Masonry party walls
Solid masonry walls - refurbishment
Timber stud partition walls Metal stud partition walls 7-9
10
11
12
13 - 14
15 - 16
Floors
Suspended timber floor - thermal
Suspended timber floor - acoustic
Solid floor
Separating floor 17
18
19
20
Useful Information
Further information
21 - 24
26
3
Cold Roof: Ventilated
Earthwool® Loft Roll 44
Earthwool Loft Roll 44
Joist
Plasterboard
Generic BRE
Green Guide Rating
Description
A flexible, glass mineral wool roll used for the thermal insulation of
pitched roofs.
Application
Earthwool Loft Roll 44 is normally laid in two layers between and over
the ceiling joists. The insulation should be taken over the wall plate to
link up with the wall insulation. All joints between the insulation to be
close butted. The insulation should be pushed up tight against the roof tile
underlay if no ventilation is required or tight to the eaves ventilator, taking
care not to block the ventilation air path if ventilation is required.
Dimensions - Earthwool Loft Roll 44
Thickness
Thermal
cond.
R-value
Length
Width
Area
per pack
(mm)
(W/mK)
(m2K/W)
(m)
(mm)
(m2)
270
0.044
6.10
3.85
1200
4.62
200
0.044
4.50
5.20
1140
5.93
170
0.044
3.85
7.03
1140
8.01
150
0.044
3.40
8.05
1140
9.18
100
0.044
2.25
12.18
1140
13.89
All dimensions are nominal
Typical U-values for cold pitched roofs: ventilated
Product
Thickness (mm)
U-values
Between Joists
Over Joists
(W/m2K)
Earthwool Loft Roll 44
100
270
0.12
Earthwool Loft Roll 44
100
200
0.15
Earthwool Loft Roll 44
100
170
0.16
Earthwool Loft Roll 44
100
150
0.17
* Joist sizes assumed to be 100 x 48mm at 600mm centres (8% bridging plus 1% for cross noggins).
The U-values have been calculated in accordance with BS EN ISO 6946:2007.
www.knaufinsulation.co.uk
4
Cold Roof: Ventilated
Earthwool® Loft Roll 270mm
Earthwool Loft Roll 270mm
Joist
Plasterboard
Generic BRE
Green Guide Rating
Description
A flexible glass mineral wool roll used for the thermal insulation of pitched
roofs.
Application
Earthwool Loft Roll 270mm is laid between the joists. The insulation should
be taken over the wall plate to link up with the wall insulation. All joints
between the insulation to be close butted. The insulation should be pushed
up tight against the roof tile underlay if no ventilation is required or tight
to the eaves ventilator, taking care not to block the ventilation air path if
ventilation is required.
Dimensions - Earthwool Loft Roll 270mm
Thickness
Thermal
cond.
R-value
Length
Width
Area
per pack
(mm)
(W/mK)
(m2K/W)
(m)
(mm)
(m2)
270
0.044
6.10
3.85
600 x 2
4.62
270
0.044
6.10
3.85
400 x 3
4.62
All dimensions are nominal
Typical U-values for cold pitched roofs: ventilated
Product
Earthwool Loft Roll 270mm
Thickness (mm)
U-value
between and over joists*
(W/m2K)
270
0.16
* Joist sizes assumed to be 100 x 48mm at 600mm centres (8% bridging plus 1% for cross noggins).
The U-value has been calculated in accordance with BS EN ISO 6946:2007
Customer Service (Sales) Tel: 0844 800 0135
Technical Advice and Support Centre Tel: 01744 766666
5
Warm Pitched Roofs
Earthwool® Rafter Roll
Vapour permeable
membrane
Earthwool Rafter Roll
Knauf PIR Laminate/
Polyfoam ECO Floorboard Standard
Generic BRE
Green Guide Rating
Description
A glass mineral wool roll for thermal insulation between rafters.
Application
Earthwool Rafter Roll is designed for insulating between the rafters of
pitched roofs in new build and existing buildings. It is easy to cut and
friction fit between rafters. Earthwool Rafter Roll can be used either as
a single or double layer between rafters, or as the first layer of a two
layer system in combination with Knauf PIR Laminate or Polyfoam ECO
Floorboard Standard.
Thickness
(mm)
140
125
100
85
75
50
Dimensions - Earthwool Rafter Roll
Thermal cond.
R-value
Length
Width
(m)
(mm)
(W/mK)
(m2K/W)
0.032
4.35
2.80
1200
0.032
3.90
3.20
1200
0.032
3.10
4.00
1200
0.032
2.65
4.60
1200
0.032
2.30
5.25
1200
0.032
1.55
7.90
1200
Area per pack
(m2)
3.36
3.84
4.80
5.52
6.30
9.48
All dimensions are nominal
Thickness
(mm)
Earthwool Rafter Roll
150 (2x75)
125
100
Typical U-values for warm pitched roofs
U-values (W/m2K)
*Knauf PIR Laminate (mm)
35
50
65
0.18
0.16
0.15
0.21
0.18
0.16
0.24
0.21
0.18
75
1.14
0.15
0.17
Note: Rafter sizes assumed to be 38mm wide at 600mm centres (6.3% bridging) and the same depth as
the insulation. *Knauf PIR Laminate is available from Knauf Drywall.
Thickness
(mm)
Earthwool Rafter Roll
150 (2x75)
125
100
Typical U-values for warm pitched roofs
U-values (W/m2K)
Polyfoam ECO Floorboard Standard (mm)
50
65
75
0.17
0.16
0.15
0.19
0.18
0.17
0.22
0.20
0.19
100
0.13
0.15
0.17
Note: Rafter sizes assumed to be 38mm wide at 600mm centres (6.3% bridging) and the same depth as
the insulation.
www.knaufinsulation.co.uk
6
Masonry Cavity Walls
Earthwool® DriTherm Cavity Slab 32 Ultimate
Plasterboard on dabs
Internal block
Earthwool DriTherm Cavity
Slab 32 Ultimate
External brickwork
Generic BRE
Green Guide Rating
Description
A semi-rigid slab made from glass mineral wool with a water-repellent
additive used for the thermal insulation of masonry cavity walls.
Application
Earthwool DriTherm Cavity Slab 32 Ultimate is built in as work proceeds,
with slabs closely butt jointed.
Dimensions - Earthwool DriTherm Cavity Slab 32 Ultimate
Thickness
Thermal
cond.
R-value
Length
Width
Area
per pack
(mm)
(W/mK)
(m2K/W)
(mm)
(mm)
(m2)
125
0.032
3.90
1200
455
2.18
100
0.032
3.10
1200
455
2.18
85
0.032
2.65
1200
455
2.73
75
0.032
2.30
1200
455
3.28
65
0.032
2.00
1200
455
5.46
50
0.032
1.55
1200
455
7.64
All dimensions are nominal
Typical U-values for masonry cavity walls
Insulation
Thickness
Lightweight
aircrete
Standard
aircrete
High strength
aircrete
Medium
density
(mm)
(l = 0.11)
(l = 0.15)
(l = 0.19)
(l = 0.45)
125
0.20
0.20
0.21
0.22
100
0.23
0.24
0.25
0.26
85
0.26
0.27
0.28
0.30
All dimensions are nominal
Customer Service (Sales) Tel: 0844 800 0135
Technical Advice and Support Centre Tel: 01744 766666
7
Masonry Cavity Walls
Earthwool® DriTherm Cavity Slab 34 Super
Plasterboard on dabs
Internal block
Earthwool DriTherm Cavity
Slab 34 Super
External brickwork
Generic BRE
Green Guide Rating
Description
A semi-rigid slab made from glass mineral wool with a water-repellent
additive used for the thermal insulation of masonry cavity walls.
Application
Earthwool DriTherm Cavity Slab 34 Super is built in as work proceeds,
with slabs closely butt jointed.
Dimensions - Earthwool DriTherm Cavity Slab 34 Super
Thickness
Thermal
cond.
R-value
Length
Width
Area
per pack
(mm)
(W/mK)
(m2K/W)
(mm)
(mm)
(m2)
150
0.034
4.40
1200
455
2.73
125
0.034
3.65
1200
455
3.28
100
0.034
2.90
1200
455
4.37
75
0.034
2.20
1200
455
5.46
All dimensions are nominal
Typical U-values for masonry cavity walls
Insulation
Thickness
Dense Block
Medium
block
Lightweight
aggregate
Standard
aircrete
Medium
density
(mm)
(l = 1.13)
(l = 0.51)
(l = 0.34)
(l = 0.15)
(l = 0.45)
300 (3x100)
0.11
0.11
0.11
0.10
0.10
200 (2x100)
0.16
0.16
0.16
0.15
0.15
150
0.20
0.20
0.19
0.18
0.18
125
0.24
0.23
0.23
0.21
0.20
100
0.28
0.28
0.27
0.25
0.24
75
0.36
0.35
0.34
0.31
0.29
All dimensions are nominal
www.knaufinsulation.co.uk
8
Masonry Cavity Walls
Earthwool® DriTherm Cavity Slab 37 Standard
Plasterboard on dabs
Internal block
Earthwool DriTherm Cavity
Slab 37 Standard
External brickwork
Generic BRE
Green Guide Rating
Description
A semi-rigid slab made from glass mineral wool with a water-repellent
additive used for the thermal insulation of masonry cavity walls.
Application
Earthwool DriTherm Cavity Slab 37 Standard is built in as work proceeds,
with slabs closely butt jointed.
Dimensions - Earthwool DriTherm Cavity Slab 37 Standard
Thickness
Thermal
cond.
R-value
Length
Width
Area
per pack
(mm)
(W/mK)
(m2K/W)
(mm)
(mm)
(m2)
150
0.037
4.05
1200
455
4.37
125
0.037
3.35
1200
455
3.28
100
0.037
2.70
1200
455
4.37
85
0.037
2.25
1200
455
4.37
75
0.037
2.00
1200
455
4.37
65
0.037
1.75
1200
455
5.46
50
0.035
1.40
1200
455
6.55
All dimensions are nominal
Typical U-values for masonry cavity walls
Insulation
Thickness
Lightweight
aircrete
Standard
aircrete
High strength
aircrete
Medium
density
(mm)
(l = 0.11)
(l = 0.15)
(l = 0.19)
(l = 0.45)
125
0.22
0.23
0.23
0.25
100
0.26
0.27
0.27
0.29
85
0.28
0.30
0.31
0.33
All dimensions are nominal
Customer Service (Sales) Tel: 0844 800 0135
Technical Advice and Support Centre Tel: 01744 766666
9
Timber Frame Walls
Earthwool® FrameTherm Roll 32, 35 and 40
External brickwork
Vapour permeable
membrane
Plywood sheathing
Earthwool FrameTherm
Roll between timber studs
Vapour control layer
12.5mm plasterboard
Cavity
Generic BRE
Green Guide Rating
Description
High performance glass mineral wool rolls used for the thermal insulation
of timber frame walls, their manufactured size is designed to suit the most
common timber stud spacing`s.
Application
Earthwool FrameTherm Rolls are simply `friction fitted` between timber
studs in timber frame wall constructions.
Dimensions - Earthwool FrameTherm Roll
Thickness
R-value
Length
Width
Area
per roll
(mm)
(m2K/W)
(mm)
(mm)
(m2)
Earthwool FrameTherm Roll 32
140
4.35
2.80
2x570
3.19
90
2.80
4.50
2x570
5.13
Earthwool FrameTherm Roll 35
140
4.00
3.90
2x570
4.45
90
2.55
6.00
2x570
6.84
Earthwool FrameTherm Roll 40
140
3.50
5.95
2x570
6.78
90
2.25
9.60
2x570
10.94
All dimensions are nominal
Typical U-values for prefabricated timber frame walls
Thickness
Membrane type
(mm)
Low e
140

140
All dimensions are nominal
10
Product
Vapour
permeable

U-values (W/m2K)
Masonry
outer leaf
Tile/timber
clad outer
Earthwool FrameTherm 32
0.22
0.27
Earthwool FrameTherm 35
0.23
0.28
Earthwool FrameTherm 40
0.25
0.30
Earthwool FrameTherm 32
0.26
0.28
Earthwool FrameTherm 35
0.27
0.29
Earthwool FrameTherm 40
0.31
0.32
www.knaufinsulation.co.uk
Party Walls
Earthwool® Masonry Party Wall Slab
External Wall
Internal block
Earthwool Masonry
Party Wall Slab
Plasterboard on dabs
Generic BRE
Green Guide Rating
WALLS
MANUFACT
ED FOR US
UR
N
EI
Description
TM
Earthwool Masonry Party Wall Slab is a full fill thermal and acoustic
S
RO
IL
BUST adjoining
solution for use in masonry cavity party walls between
DETA
apartments, semi-detached and terraced houses. Earthwool Masonry Party
Wall Slab can be used as part of a solution to achieve a zero effective
U-value in party walls when using SAP 2009 for compliance with the
2010 Building Regulations.
Application
Earthwool Masonry Party Wall Slab is built in as work proceeds, with
slabs closely butt jointed to fully fill the cavity.
Dimensions - Earthwool Masonry Party Wall Slab
Thickness
Installed
density
R-value
Length
Width
Area
per pack
(mm)
(kg/m3)
(m2K/W)
(mm)
(mm)
(m2)
100
18.00
2.75
1200
455
6.55
50
18.00
2.05
1200
455
8.74
All dimensions are nominal
Knauf Insulation Party Wall solutions are suitable for use in Robust Details™ Walls.
As we are developing solutions on an ongoing basis and the range of walls within
the Robust Details Handbook is constantly evolving, the most up to date information
regarding Knauf Insulation solutions to be used with Robust Details walls can be found
by visiting knaufinsulation.co.uk/partywall
Customer Service (Sales) Tel: 0844 800 0135
Technical Advice and Support Centre Tel: 01744 766666
11
Solid Masonry Walls
ThermoShell® Internal Wall Insulation System
Solid masonry wall
Existing plaster
EcoStud 95mm
Earthwool EcoBatt 95mm
Fixings
Plasterboard
ThermoShell Vapour
Control Layer
Description
The ThermoShell IWI System is an internal wall insulation system designed
for upgrading existing solid external walls. It consists of thermally
engineered insulated studs and water repellent glass mineral wool
insulation slabs.
Dimensions - EcoStud
Thickness
Thermal
cond.
R-value
Width
Length
(mm)
(W/mK)
(m2K/W)
(mm)
(mm)
95
n/a
2.54
50
2400
80
n/a
2.08
50
2400
65
n/a
1.63
50
2400
All dimensions are nominal
Dimensions - Earthwool EcoBatt
Thickness
Thermal
cond.
R-value
Width
Length
(mm)
(W/mK)
(m2K/W)
(mm)
(mm)
130*
0.035
3.70
555
1200
95
0.032
2.95
555
1200
80
0.032
2.50
555
1200
65
0.035
1.85
555
1200
All dimensions are nominal
*Multiple layers
Earthwool EcoBatt and EcoStud products are only available as part of the ThermoShell
Internal Wall Insulation System. The ThermoShell Internal Wall Insulation System is
restricted to Approved Distribution Outlets and Approved ThermoShell IWI Installers. For
information on how to become an Approved Distribution Outlet or Approved ThermoShell
IWI Installer please contact your local Knauf Insulation Sales Representative.
www.knaufinsulation.co.uk
12
Timber Stud Partition
Earthwool® Acoustic Roll
Plasterboard
Earthwool Acoustic
Roll
Timber stud
Plasterboard
Generic BRE
Green Guide Rating
50mm Earthwool Acoustic Roll friction fitted between timber studs faced with 12.5mm Knauf
Wallboard, achieves Building Regulations acoustic performance for internal walls (40dB).
Description
A flexible, resilient, glass mineral wool roll.
Application
Earthwool Acoustic Roll is simply friction fitted between timber studs at
600mm centres (400mm and 600mm centres for 100mm thickness).
Dimensions - Earthwool Acoustic Roll
Thickness
Length
Width
Area
per roll
(mm)
(m)
(mm)
(m2)
100
9.17
2 x 600
11.00
100
9.17
3 x 400
11.00
75
12.50
2 x 600
15.00
50
13.00
2 x 600
15.60
25
10.00
4 x 600
24.00
All dimensions are nominal
Customer Service (Sales) Tel: 0844 800 0135
Technical Advice and Support Centre Tel: 01744 766666
13
Timber Stud Partition
Earthwool® Flexible Slab
Plasterboard
Earthwool
Flexible Slab
Timber stud
Plasterboard
Generic BRE
Green Guide Rating
50mm Earthwool Flexible Slab friction fitted between timber studs faced with 12.5mm Knauf
Wallboard, achieves Building Regulations acoustic performance for internal walls (40dB).
Description
A semi-rigid rock mineral wool slab used for a wide range of thermal and
acoustic applications.
Application
Earthwool Flexible Slab is simply friction fitted between timber studs at
400mm and 600mm centres.
Dimensions - Earthwool Flexible Slab
Thickness
Thermal
cond.
R-value
Length
Width
Area
per pack
(mm)
(W/mK)
(m2K/W)
(mm)
(mm)
(m2)
140
0.035
4.00
1200
600
2.16
140
0.037
3.75
1200
400
1.92
100
0.037
2.70
1200
600
3.60
100
0.037
2.70
1200
400
2.88
90
0.037
2.40
1200
600
3.60
70
0.037
1.85
1200
600
5.76
60
0.037
1.60
1200
600
5.76
60
0.037
1.60
1200
400
4.80
50
0.037
1.35
1200
600
7.20
50
0.037
1.35
1200
400
5.76
All dimensions are nominal
www.knaufinsulation.co.uk
14
Metal Stud Partition
Earthwool® Acoustic Roll
Plasterboard
Earthwool Acoustic
Roll
Metal stud
Plasterboard
Generic BRE
Green Guide Rating
50mm Earthwool Acoustic Roll friction fitted between metal studs faced with 12.5mm Knauf
Wallboard, achieves Building Regulations acoustic performance for internal walls (40dB).
Description
A flexible, resilient, glass mineral wool roll.
Application
Earthwool Acoustic Roll is simply friction fitted between metal studs at
600mm centres (400mm and 600mm centres for 100mm thickness).
Dimensions - Earthwool Acoustic Roll
Thickness
Length
Width
Area
per roll
(mm)
(m)
(mm)
(m2)
100
9.17
2 x 600
11.00
100
9.17
3 x 400
11.00
75
12.50
2 x 600
15.00
50
13.00
2 x 600
15.60
25
10.00
4 x 600
24.00
All dimensions are nominal
Customer Service (Sales) Tel: 0844 800 0135
Technical Advice and Support Centre Tel: 01744 766666
15
Metal Stud Partition
Earthwool® Flexible Slab
Plasterboard
Earthwool Flexible Slab
Metal stud
Plasterboard
Generic BRE
Green Guide Rating
50mm Earthwool Flexible Slab friction fitted between metal studs faced with 12.5mm Knauf
Wallboard, achieves Building Regulations acoustic performance for internal walls (40dB).
Description
A semi-rigid rock mineral wool slab used for a wide range of thermal and
acoustic applications.
Application
Earthwool Flexible Slab is simply friction fitted between metal studs at
400mm and 600mm centres.
Dimensions - Earthwool Flexible Slab
Thickness
Thermal
cond.
R-value
Length
Width
Area
per pack
(mm)
(W/mK)
(m2K/W)
(mm)
(mm)
(m2)
140
0.035
4.00
1200
600
2.16
140
0.037
3.75
1200
400
1.92
100
0.037
2.70
1200
600
3.60
100
0.037
2.70
1200
400
2.88
90
0.037
2.40
1200
600
3.60
70
0.037
1.85
1200
600
5.76
60
0.037
1.60
1200
600
5.76
60
0.037
1.60
1200
400
4.80
50
0.037
1.35
1200
600
7.20
50
0.037
1.35
1200
400
5.76
All dimensions are nominal
www.knaufinsulation.co.uk
16
Suspended Timber Floor - Thermal
Earthwool® Loft Roll 40
Chipboard
Earthwool Loft
Roll 40
Timber joist
Support netting
Generic BRE
Green Guide Rating
U-value of 0.22 W/m2K - 150mm of Earthwool Loft Roll 40 friction fitted between timber joists (typical
­­­U-value for an extension with P/A of 0.45), alternatively use 140mm of Earthwool Flexible Slab.
Description
A flexible, resilient, glass mineral wool roll.
Application
Unroll the netting and staple it to the sides of each joist so as to form a
support cradle. Friction fit the required thickness of Earthwool Loft Roll
40 between the joists. There should be no air gap between the insulation
and the underside of the floor deck. Joists running parallel with masonry
walls should be spaced away from the wall to allow no less than 35mm of
insulation to be placed next to the wall.
Dimensions - Earthwool Loft Roll 40 (Combi-Cut)
Thickness
Thermal
cond.
R-value
Length
Width
Area
per pack
(mm)
(W/mK)
(m2K/W)
(m)
(mm)
(m2)
200
0.040
5.00
4.85
1140
2x570/3x380
5.53
150
0.040
3.75
7.53
1140
2x570/3x380
8.58
100
0.040
2.50
11.25
1140
2x570/3x380
12.83
All dimensions are nominal
Customer Service (Sales) Tel: 0844 800 0135
Technical Advice and Support Centre Tel: 01744 766666
17
Suspended Timber Floor - Acoustic
Earthwool® Building Slab / Flexible Slab
Chipboard
Timber joist
Earthwool Building Slab/
Flexible Slab
Plasterboard
Generic BRE
Green Guide Rating
100mm Earthwool Building Slab/ Flexible Slab friction fitted between timber joists faced with 12.5mm Knauf
Wallboard, achieves Building Regulations acoustic performance for internal floors (40dB).
Description
A semi-rigid rock mineral wool slab used for a wide range of thermal and
acoustic applications.
Application
Earthwool Building Slab / Flexible Slab are cut to friction fit between
joists. The insulation should rest on the ceiling, between the last joist and
the wall, cut insulation to size and friction fit in the gap.
RS45
RS33
Dimensions - Earthwool Building Slab
Thickness
Thermal
cond.
R-value
Length
Width
Area
per pack
(mm)
(W/mK)
(m2K/W)
(mm)
(mm)
(m2)
100
0.037
2.70
1200
600
3.60
70
0.037
1.85
1200
600
5.76
60
0.037
1.60
1200
600
5.76
50
0.037
1.35
1200
600
7.20
40
0.037
1.05
1200
600
8.64
100
0.035
2.85
1200
600
3.60
75
0.035
2.10
1200
600
4.32
60
0.035
1.70
1200
600
5.76
50
0.035
1.40
1200
600
7.20
40
0.035
1.10
1200
600
8.64
30
0.035
0.85
1200
600
11.52
25
0.035
0.70
1200
600
14.40
All dimensions are nominal
For Earthwool Flexible Slab product data, please see page 16
www.knaufinsulation.co.uk
18
Solid Floor
Polyfoam® ECO Floorboard Standard
25mm Polyfoam ECO
Floorboard Standard
Polyfoam ECO
Floorboard Standard
Slip layer, or
alternative position for dpm
dpm
Description
Extruded polystyrene boards for the thermal insulation of floors. Polyfoam
ECO Floorboard Standard has a GWP of less than five.
Application
A solid concrete ground floor slab cast on insulation on a damp proof
membrane laid over blinded hardcore. Alternatively concrete floor slab
cast on a damp proof membrane laid over the insulation.
Dimensions - Polyfoam ECO Floorboard Standard
Thickness
Thermal
conductivity
R-value
Min. compressive
strength
Length
Width
(mm)
(W/mK)
(m2K/W)
(kPa)
(mm)
(mm)
100 L J
0.033
3.00
200
1250
600
75 SE
0.033
2.25
200
2500
600
65 SE
0.033
1.95
200
2500
600
50 SE
0.033
1.50
200
2500
600
35 SE
0.033
1.05
200
2500
600
25 SE
0.033
0.75
200
2500
600
All dimensions are nominal.
Polyfoam ECO Floorboard Extra and Polyfoam ECO Floorboard Super are also available.
Customer Service (Sales) Tel: 0844 800 0135
Technical Advice and Support Centre Tel: 01744 766666
19
Separating Floors
Floorfoam®
65mm sand/cement screed,
or 40mm liquid screed
Floorfoam Easy Edge Strip
Floorfoam 10mm
Precast concrete planks
Metal/plasterboard ceiling system
Description
A closed cell extruded polyethylene foam available in roll form.
Application
The closed cell nature of Floorfoam makes it excellent at cushioning
vibrations; it can be used in a wide variety of separating floor
constructions. Floorfoam has been developed specifically to comply with
Building Regulation requirements for a resilient layer in separating floors
and is suitable for use with either traditional or liquid screed solutions and
has been successfully tested on both.
Dimensions - Floorfoam
Thickness
Length
Width
Area
per pack
(mm)
(m)
(mm)
(m2)
5
93.75
1200
112.50
10
52.00
1200
62.40
All dimensions are nominal
www.knaufinsulation.co.uk
20
Material Quantities
Walls
Brick/block masonry cavity wall construction - per 10m2
• Bricks 65mm x 100mm x 215mm - 600
• Blocks 215mm x 100mm x 440mm - 100
• Cavity ties - 25 per 10m2 or 2.5m2
• Mortar (4:1)
• Sand 768kg
• Cement 192kg
• Insulation product - Earthwool DriTherm Cavity Slabs 37/34/32
• 19 per 10m2
Solid walls
• 1000 - 65mm x 100mm x 215mm bricks is sufficient for:
• Approximately 17.00m2 of 100mm (4”) thick wall in stretcher bond
• Approximately 8.50m2 of 210mm (9”) thick wall in stretcher bond
• Mortar (4:1) per 100 bricks
• Sand 926kg
• Cement 263kg
• Number of tie wires - 43
Site mixed concrete per m3 (1:2:4)
• Cement - 304kg
• 13 x 25kg bags
• Sharp sand - 608kg
• 25 x 25kg bags
• Aggregate - 1216kg
• 49 x 25kg bags
• Water - 177 litres
Plaster - coverage per 25kg bag
• Universal board finish - 14m2 at 2mm
• Bonding - 2.75m2 at 11mm
• Universal one coat - 2.25m2 at 13mm
Plasterboards
• Board size - 2400mm x 1200mm x 9.50mm
• Board area - 2.88m2
• 50 nails per board - 150mm x 400mm centres
• Typical board weight - 18.00kg (approximate)
• Board size - 2400mm x 1200mm x 12.50mm
• Board area - 2.88m2
• 50 nails per board - 150mm x 400mm centres
• Typical board weight - 24.00kg (approximate)
Customer Service (Sales) Tel: 0844 800 0135
Technical Advice and Support Centre Tel: 01744 766666
21
Material Quantities
Walls (cont.)
Timber stud partition - 38mm studs at 400mm centres (per 10m2)
• Timber studs - 43 linear metres
• Plasterboard (12.5mm) - 7 sheets
• Plaster finish coat - 36kg
• Fixing with nails - 357
• Fixing with screws - 180
• Insulation product - 50mm Earthwool Acoustic Roll
• One roll = 15.60m2
External rendering
• Typical mixes by volume
• 1:1:5/6 - cement/lime/sand
• 1:5/6 - cement/sand - plus plasticiser
• Undercoat - 8 - 16mm
• Topcoat - 6 - 10mm
Roofs
Pitched roof insulated at ceiling level
Number of Earthwool Loft Roll 44 rolls required
U-value of roof 0.16W/m2K
Ceiling area (m2)
Roll thickness
(mm)
20
30
40
50
60
70
80
100
2
2
3
2
3
3
4
4
5
4
5
5
5
6
170
3
3
4
4
5
5
7
7
8
8
9
9
10
10
38 mm joists at 600mm centre
38 mm joists at 400mm centres
Pitched roofing materials - per 10 m2
• Marley Modern roof tiles 420mm x 330mm
• Tile lap 100mm
• 107 tiles per 10m2
• Batten gauge 338mm
• Battens 38mm x 25mm - 450mm centres - 29 linear metres of battens per 10m2
• Battens 50mm x 25mm - 600mm centres - 31 linear metres of battens per 10m2
• Tile nails 50mm x 3.50mm (minimum 15mm penetration into rafter)
www.knaufinsulation.co.uk
22
Material Quantities
Roofs (cont.)
Slate nails - quantity per kg
Length
(mm)
Plain wire
Galvanised
wire
Copper nail
Zinc nail
28.50
325
305
325
415
34.40
286
256
254
292
50.80
242
224
194
200
All dimensions are nominal
Floors
Block paving - per 10 m2
• 500 pavers - 200mm x 100mm
• Sub base - 100mm crusher run - 2 tonnes (80 x 25kg bags)
• Bedding - 50mm sharp sand - 0.90 tonnes (36 x 25kg bags)
Tongue and groove softwood floor boards - joists at 600mm
centres - per 10m2
• Board size - 22mm x 125mm (120mm coverage)
• 84 linear metres
• 280 oval or lost head nails - 3mm x *55mm (min)
• 380 screws - *55mm (min) x 8’s
* Board thickness x 2.5
Chipboard (P5) flooring - joists at 600mm centres - per 10m2
• Board size 2400mm x 600mm x 22mm
• 1.44m2 per board
• 7 boards per m2
• Number of nails or screws
• 250 at 200mm fixing centres
• 111 at 300mm fixing centres
• Nails -10 gauge annular ring shank - length *55mm (min)
• Chipboard screws - *55mm (min) x 8’s
* Board thickness x 2.5
• PVA adhesive - 1.30kg/10m2
Pre treated floor decking - joists at 600mm centres - per 10m2
• Board size - 32mm x 125mm
• 5mm gap between boards
• 77 linear metres
• 256 galvanised or 75mm decking screws
23
Notes
Miscellaneous
Standard nails
Wire nails
Length (inches)
Gauge
Number per kilo
1
15
1927
1.5
12.5
695
2
11.5
398
3
10.25
233
3
9
152
3.5
8
108
4
6
69
4.5
5
53
5
4
40
5.5
3
31
6
2
24
All dimensions are nominal
24
Notes
25
Further information from Knauf Insulation
At Knauf Insulation our philosophy is provide you the
customer with help and assistance whenever, and
wherever possible, in a user friendly and accessible
way. Your local Area Sales Manager can be contacted
to provide help and assistance whatever the problem,
alternatively help is just a phone call away as direct
contact can be made with our Technical Advice and
Support Centre (TASC) on 01744 766666, where
expert staff are on hand to provide advice and guidance
enabling you to offer your customer a solution that meets
their requirements. For specific product availability and
delivery order enquiries our Customer Services team can
be contacted on 0844 800 0135.
Our website contains comprehensive information on our
complete range of products and solutions.
The website also provide access to:
• Our online academy www.insulationacademy.com • Downloadable PDFs of our literature
• Case studies
• News
• Press releases
• Videos
The website will be continually developing and
improving, and will always contain the most
up-to-date information on our products and solution, so
log on to www.knaufinsulation.co.uk today.
26
Insulation made with
feel good factors
• Award-winning ECOSE® Technology
• Manufactured using a bio-based technology free from formaldehyde
• Made using a high content of recycled materials
• Awarded Eurofins Gold Standard for Indoor Air Quality
• Excellent fire, thermal and acoustic performance
• No artificial dyes or colourings
• Easier to cut and less dusty compared to our traditional mineral wool
www.knaufinsulation.co.uk/pgbec0413
KINE1826ADV - V0413
All rights reserved, including those
of photomechanical reproduction
and storage in electronic media.
Commercial use of the processes
and work activities presented in this
document is not permitted. Extreme
caution was observed when putting
together the information, texts and
illustrations in this document.
Nevertheless, errors cannot quite be
ruled out. The publisher and editors
cannot assume legal responsibility or
any liability whatever for incorrect
information and the consequences
thereof. The publisher and editors
will be grateful for improvement
suggestions and details of errors
pointed out.
Knauf Insulation
PO Box 10
Stafford Road
St Helens
Merseyside
WA10 3NS
www.knaufinsulation.co.uk
info.uk@knaufinsulation.com
Ref: KINE1070GID - V0813
Customer Service (Sales)
Tel: 0844 800 0135
Fax: 01744 612007
E-mail: sales.uk@knaufinsulation.com
www.knaufinsulation.co.uk
Technical Advice and Support Centre
Tel: 01744 766666
Fax: 01744 766667
E-mail: technical.uk@knaufinsulation.com
Literature
Tel: 08700 668 660
Fax: 0870 400 5797
E-mail: info.uk@knaufinsulation.com