An Introduction to the NIA and Insulation
Neil Marshall
Who we are
• Represent manufacturers and installers
– Wall Insulation - CWI, EWI, IWI, Hybrid
– Loft/Roof Insulation
– Draught Proofing/Air Leakage
• 170 members - GB and NI
• Full service TA
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Promote the benefits of insulation
Range of membership services
Industry representation
Work in partnership with like minded organisations
• Maintain Standards
– Membership criteria,
– Code of Professional Practice
Where does the heat go?
• 45% of heat lost through uninsulated solid walls
• 33% of heat lost through uninsulated cavity walls
• 25% of heat lost through the roof/loft space
• 20% of heat lost windows and doors
The Benefits of Insulation
• Solid Wall Insulation
• Save around £375 a year on heating bills
• Reduce (CO 2) emissions by around 2 tonnes each year
• Cavity Wall Insulation
• Save around £110 a year on heating bills
• Pay back in just 2 years
• Reduce (CO 2) emissions by around 560kg each year
• Loft insulation
• Save around £145 a year on heating bills
• Pay back in under 2 years
• Reduce (CO 2) emissions by around 800kg each year
The Opportunity
Over half the existing housing stock in the UK has
inadequate levels of insulation!
• 7m properties have solid walls that are not insulated
• 8m properties with uninsulated cavity walls
• Around 13m lofts with inadequate insulation
• Most people have some loft insulation but it is not
sufficient – to comply with modern standards it should be
270mm deep
+ 4.5m micro/SME businesses
Market Drivers
• Carbon Emissions Reduction Target - 2012
• Community Energy Saving Programme - 2012
• Energy Company Obligation - 2013
• Green Deal – October 2012
•
Residential and commercial buildings
Cavity Wall Insulation
• Permanent, maintenance free home improvement, lasting
the life of the building
• Most homes built from 1920 onwards have cavity walls
• Cavity wall insulation fills the cavity between the inner and
outer walls - reducing the amount of heat that is lost
Cavity Wall Insulation
• Small holes are drilled into the outside walls and CWI
material is blown into the cavity
• Holes in the brickwork are filled post insulation
• 3 types of material are used
• mineral wool/polystyrene beads/foam
• CIGA (Cavity Insulation Guarantee Agency) issue an
independent 25 year guarantee covering defects in
materials and workmanship
Loft Insulation
• Loft insulation reduces the amount of heat escaping through
the roof by providing a layer of material with air pockets that
trap the heat
• The recommended depth of loft insulation is 270mm (mineral
wool)
• There are three types of insulation used:
• mineral wool quilt/blown mineral wool/cellulose and polystyrene
boards
Loft Insulation
• Mineral wool quilt is the most common material used
• Quilts are laid down between the joists then another layer of
insulation is `cross-laid' to cover the joists
• Insulation makes the house warmer but the roof colder so it
is important to insulate tanks and pipes in the loft space
Internal Wall Insulation Solutions
Built up insulated framework
Solid Wall
Studs
Insulation
Vapour control layer /
Plasterboard
Internal Wall Insulation Solutions
Laminated insulated plasterboard
Solid Wall
Bonded
insulation
Plasterboard
Internal Wall Insulation Solutions
Thermal insulation on a roll
Internal Wall Insulation Solutions
Multifoils / Aerogels
Internal Wall Insulation
• Suitable for installation where the external wall
appearance cannot be changed (planning
restrictions)
• Can be utilised where there is insufficient external
clearance to install external wall insulation
• It can be installed on a room-by-room, single
façade or whole house basis, as part of a full
refurbishment plan
External Wall Insulation
Adhesive
Insulation
Insulation Fixing
Render with
Reinforcing Mesh
Decorative Render
Finish
External Wall Insulation
• Very high levels of insulation possible.
• No internal disruption.
• Effective for new and existing buildings.
• Building fabric is protected from the weather
(extends buildings life).
• Overcomes cold bridging, condensation and
dampness.
• Enables building appearance to be improved /
modified.
Hybrid Approach
•
Front appearance retained using IWI
•
Side/Rear and any extension can benefit from EWI
•
The same techniques are adopted for standard
IWI/EWI
Support Available
• Information
– www.nationalinsualtionassociation.org.uk
– Literature
• Communication
– NIA Local Forums
– E-briefs, newsletter
• Access to members
– Postcode Locator
• Issue expressions of interest/tenders
• Referrals/Lead Generation Schemes?
For more information:
www.nationalinsulationassociation.org.uk
Tel: 01525 383313