ThermoShell Internal Wall Insulation (IWI)
Knauf Insulation
KNAUF INSULATION
INSULATION MATERIALS
1.2 BILLION
5,000 EMPLOYEES
Worldwide presence
Glass mineral wool
2010 turnover
20,000 employees
Fastest growing insulation manufacturer in Europe
Rock mineral wool
Over €1.2 billion
Over 30 factories
Wood wool
Extruded polystyrene Extruded polyethelene Expanded polystyrene
Over 35 countries
Knauf Insulation - UK
Cwmbran Glass mineral wool
St Helens Glass mineral wool
Queensferry Rock mineral wool
Hartlepool XPS
Extruded polystyrene
Industry Overview
Industry Overview
25 million Number of homes in UK housing stock (English Homes Conditions Survey, 2009)
Industry Overview
6.6 million Number of solid wall homes in UK housing stock (English Homes Conditions Survey, 2009)
Industry Overview
220 Years it will take to insulate all solid wall homes at current installation rates (estimated 30,000 installs p.a)
Industry Overview Number solid wall insulation installations
500,000 450,000 400,000 350,000 300,000 250,000 200,000 150,000 100,000 50,000 0 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 2018 2019 2020
DECC forecast for solid wall insulation measures under Green Deal and new ECO
Industry Overview Opportunities • Green Deal – Insulation measures will play a key role
• ECO – Major focus on solid wall insulation will result in growth
• Kitchen/bathroom upgrades – Key opportunity to upgrade insulation of solid walls
• Funding available square metre basis – ThermoShell IWI can potentially attract funding for every square metre installed – Huge opportunity for sales
Building Regulations • ThermoShell IWI System thicknesses and U-values when used on a 225mm solid brick wall Thickness (mm)
U-value (W/m2K)
65
0.45
80
0.35
95
0.30
130
0.26
160
0.20
• If U-value of 0.30 W/m2K required as per Approved Document L, 95mm system is required
Industry Overview Internal Wall Insulation (IWI)
No scaffolding required Greater flexibility for installation Generally less expensive than EWI
Industry Overview Internal Wall Insulation options – Aerogels – Insulated wallpaper – Rigid foam boards – Mineral wool installed in between timber studs – Mineral wool installed in between metal studs
Industry Overview What an IWI system needs to provide: – Thermal performance • U-value of 0.30 W/m2K for compliance with Part L1B 2010
– Acceptable thickness – Minimised risk of condensation – Minimal disruption during installation – Low environmental impact
Existing wall
EcoStud
Earthwool EcoBatt ThermoShell Vapour Control Layer Plasterboard
Industry Overview What an IWI system needs to provide:
– Thermal performance
• U-value of 0.30 W/m2K for compliance with Part L1B 2010
– Acceptable thickness
– Minimised risk of condensation
– Minimal disruption during installation – Low environmental impact
EcoStud Extruded Polystyrene (XPS) + 15mm OSB
No thermal bridging
Unaffected by moisture
Lightweight but with high compressive strength
Excellent pullout strength
Moisture resistant OSB
Earthwool EcoBatt Water repellent glass mineral wool • Manufactured with ECOSE® Technology • Compression fits between studs, allowing no air gaps preventing air movement and condensation • Glass mineral wool with a generic A+ Green Guide rating
ThermoShell Vapour Control Layer
Vapour control membrane + Standard plasterboard
Main benefits of the ThermoShell IWI system – Reduced thickness due to insulation properties of EcoStud – Can potentially attract funding for every square metre installed
– Cost effective – BBA certified system – LABC approved meaning no separate sign off or approval for each project – OFGEM recognised allowing funding allocation – High performance environmental credentials
Industry Overview Number solid wall insulation installations
500,000 450,000 400,000 350,000 300,000 250,000 200,000 150,000 100,000 50,000 0 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 2018 2019 2020
DECC forecast for solid wall insulation measures under Green Deal and new ECO
Case study Doncaster whole house refurbishment
Case study Doncaster whole house refurbishment • Voided property • Plaster removed on all walls • Kitchen and bathroom units replaced • Ceilings downstairs replaced Insulation measures • 75mm ThermoShell IWI to all external walls • 75mm ThermoShell IWI to cellar stairs • Thermal Laminate to reveals and returns • 150mm insulation in suspended timber floor • Loft insulation upgraded from 100mm to 300mm • Intermediate floors zone insulated • Underside of staircase to first floor insulated
Case study Doncaster whole house refurbishment
IWI System in bathroom
Case study Doncaster whole house refurbishment Energy profile Before SAP rating CO2 emissions p.a
63 D 3810 kg
CO2 reduction
U-values (W/m2K)
Before
Walls
2.1
Loft
0.71
Floor
0.43
Case study Doncaster whole house refurbishment Energy profile
SAP rating CO2 emissions p.a
Before
After
63 D
82 B
3810 kg
1833 kg
CO2 reduction
U-values (W/m2K)
52%
Before
After
Walls
2.1
0.35
Loft
0.71
0.21
Floor
0.43
0.13
Case study Doncaster whole house refurbishment Conclusions
• Improved SAP rating:
63D to 82B
• CO2 savings:
2 tonnes / year
• Reduced fuel bills:
£400 / year
• Overall installed cost:
£2,800.00
• Payback:
7 years