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Renewable Energy Open Day Scotland
ees-renewables.co.uk0800 294 4104
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Mark McleanCallum Walker Energy
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02.05.2023Chart 4 /
WINDOWS AND DOORS FOR PASSIVE HOUSESMark McLean
Director - Callum Walker Energy Source - Internorm Partner (Scotland)
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Founded in1931 Still Family Owned £300m Turnover 2011 (growth
+50%) £ 3.6m Turnover UK 2011
52 % Export share 20M. window units produced
(until May 2012) 1950 employees Market leader in Europe for
Passive House Windows
INTERNORM
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PRODUCTION SITES
Traun, Upper Austria
UPVC window, insulating glass and aluminium production
Sarleinsbach, Upper Austria
Europe's most modern UPVC window factory, insulating glass production, extrusion
Lannach, Austria
Timber/aluminium production
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SALES TREND ALL MARKETS 2010-2011
AT DE CH IT FR OS GB0
20,000
40,000
60,000
80,000
100,000
120,000
140,000
160,000
Sales 20102011
UK
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• 26.65 million homes
• 70% owner occupied
• 12% private rent
• 18% social rent
• 700,000 vacant homes
• 8.5 million properties over 60 years old • Oldest housing stock in the world
• Wide variety of types and vernaculars
One whole house renovated in the UK every 5 minutes up to 2050
SCALE OF THE CHALLENGE
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Triple Glazing In Construction
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02.05.2023Chart 10 /
HOW IMPORTANT IS A WINDOW?
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The heatloss of a window => U [W/(m² ·K)])
The smaller the number the less heat will go through the window U = Watts per Sq M, per Degree differential from the Exterior. (typically 20 degrees used)
Window
Heating
Wall
Roof
HEAT LOSS FROM A BUILDING
Ug............the U value of the glass centre paneUf.............the U value of the framePSI.......... Heat transfer (cold bridging) at the edges (Internal) Spacer + (External) InstallationUw ...........the overall U value of window
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INSTALLATION
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INSTALLATION
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FITTING
Outside
inside
Stop water coming inThermal
Insulation
Airtight
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Importance of Fitting ?
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Vapour closed
Vapour closed
Vapour open
Outside Inside
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Airtight with render bead
02.05.2023
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Importance of : Sill – window - wall connection
Water stopAirtight no heat coming out
Moisture –expanding air
Example: with an expanding tape vapour open to the Outside.
3mm Gap to allow trapped moisture to escape
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02.05.2023Chart 18 /
TRIPLE GLAZING ?
Body sensitivity: 2,5°C
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What effects the sound
•How many gaskets•Different glass thickness •Laminated glass •Different gaps between the glass
Example => 44db standard glazing
SOUND
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Less frame => better Uvalue => more glass => more light
Max sizes = 1200 x 2500 triple glazing
Casement window Tilt & Turn windows
Max sizes per opener600 x 1000
DESIGN
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BRFC - RATING
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THERMAL COMFORT
Body sensitivity: 2,5°C
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WHAT WE DO?
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Sandow Court in Preston
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Each apartment spent between £800 - £1650 on energy bill / year
2x Concrete Tower Blocks in Preston build 1965 – social housing18th floors Total of 244 flats
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100mm wall insulationUPVC windows with Alu CladTriple glassing.Uw = 1.1 Ug = 0.7Enclosing of balconies
Sandow Court in Preston
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Sandow Court in Preston
02.05.2023Chart 26 /
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CESP funding by SSE - 3,8 million funding
work done: wall insulation, triple UPVC /Ali clad window, Pellet heater
Estimated Energy bill from £1200 => £450/ apartment year a saving of 926t of CO2
Replacing 1500 windows => 2 month
Everything is up to the new building regulation
Comment from a apartment owner – “last year I had never to switch on the heating”
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Sandow Court in Preston
Before & After
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Thermal Insulation to 0.63 W/m2k Soundproofing up to 44dB Integrated blind system therefore
privacy & sun protection Photovoltaic blinds available
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INNOVATIONS: PERFECT BALANCE
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Thermal Insulation as low as 0.69W/m2k
Soundproofing up to 42dB Flush design 48mm Solar+ glass as standard
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INNOVATIONS
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Thermal Insulation up to 0.74 W/m2k Soundproofing up to 43dB No visible sash profile Fix-O-Round Technology Economical low energy window
INNOVATIONS: MODERN SIMPLICITY
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Timber windows are not good for wet rooms
INNOVATIONS: PERFECT MIX
You can mix timber with UPVC windows
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INNOVATIONS : INSULATED DOORS
Thermal insulation Ud 0.73W/m2k
Passive House Certified Flush design
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INNOVATIONS: BIOMETRIC SECURITY
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INNOVATION: SLIDING DOOR: GLASS TO GLASS CORNERS
Thermal insulation Ud 0.73W/m2k
Low Threshold
Glass to Glass corner
Flush design
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MVHR – Heat recovery built into the window – KF500
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FRESH AIR AND ENERGY SAVING
More Fresh Air: Wellbeing & Better Sleep
Energy Efficiency: 86% Heat Recovery
Dust & Pollen Filters
Comfort: Reduce Dampness, & odour. => Reduced Mould
Security: no need to open windows on hot summer nights
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High security hardware – standard on the window – KF500
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Advantages:
30 % less wide view widths of frame and sash
RC2N as standard without functioning restrictions
Trendsetting thermal insulation as standard
Uw ≤ 0.69 W/m²K
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TEST - REPORTS
We offer architects access to our server where you can download Test reports Certifications Sectional drawings in PDF or CAD
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02.05.2023Chart 38 /
Callum Walker Energy-Source
Unit 324 Fairykirk RoadRosythFifeKY11 2QQ
Tel.: 01383 415914www.internormscotland.co.ukwww.energy-source.co.uk
THANK YOU
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Renewable Energy Specialistsees-renewables.co.uk0800 294 4104