Renewable Energy Open Day Scotland

ees-renewables.co.uk0800 294 4104

Mark McleanCallum Walker Energy

02.05.2023Chart 4 /

WINDOWS AND DOORS FOR PASSIVE HOUSESMark McLean

Director - Callum Walker Energy Source - Internorm Partner (Scotland)

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

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

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

02.05.2023Chart 8 /

• 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

Triple Glazing In Construction

02.05.2023Chart 10 /

HOW IMPORTANT IS A WINDOW?

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

02.05.2023Chart 12 /

INSTALLATION

02.05.2023Chart 13 /

INSTALLATION

FITTING

Outside

inside

Stop water coming inThermal

Insulation

Airtight

Importance of Fitting ?

02.05.2023Chart 15 /

Vapour closed

Vapour closed

Vapour open

Outside Inside

Airtight with render bead

02.05.2023

Chart 16 /

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

02.05.2023Chart 18 /

TRIPLE GLAZING ?

Body sensitivity: 2,5°C

02.05.2023Chart 19 /

What effects the sound

•How many gaskets•Different glass thickness •Laminated glass •Different gaps between the glass

Example => 44db standard glazing

SOUND

02.05.2023Chart 20 /

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

Chart 21 /

BRFC - RATING

THERMAL COMFORT

Body sensitivity: 2,5°C

WHAT WE DO?

02.05.2023Chart 23 /

Sandow Court in Preston

02.05.2023Chart 24 /

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

02.05.2023Chart 25 /

100mm wall insulationUPVC windows with Alu CladTriple glassing.Uw = 1.1 Ug = 0.7Enclosing of balconies

Sandow Court in Preston

Sandow Court in Preston

02.05.2023Chart 26 /

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”

02.05.2023Chart 27 /

Sandow Court in Preston

Before & After

Thermal Insulation to 0.63 W/m2k Soundproofing up to 44dB Integrated blind system therefore

privacy & sun protection Photovoltaic blinds available

02.05.2023Chart 28 /

INNOVATIONS: PERFECT BALANCE

Thermal Insulation as low as 0.69W/m2k

Soundproofing up to 42dB Flush design 48mm Solar+ glass as standard

02.05.2023Chart 29 /

INNOVATIONS

02.05.2023Chart 30 /

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

Timber windows are not good for wet rooms

INNOVATIONS: PERFECT MIX

You can mix timber with UPVC windows

INNOVATIONS : INSULATED DOORS

Thermal insulation Ud 0.73W/m2k

Passive House Certified Flush design

02.05.2023Chart 32 /

INNOVATIONS: BIOMETRIC SECURITY

02.05.2023Chart 33 /

INNOVATION: SLIDING DOOR: GLASS TO GLASS CORNERS

Thermal insulation Ud 0.73W/m2k

Low Threshold

Glass to Glass corner

Flush design

02.05.2023Chart 34 /

MVHR – Heat recovery built into the window – KF500

02.05.2023Chart 35 /

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

High security hardware – standard on the window – KF500

02.05.2023Chart 36 /

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

TEST - REPORTS

We offer architects access to our server where you can download Test reports Certifications Sectional drawings in PDF or CAD

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

Renewable Energy Specialistsees-renewables.co.uk0800 294 4104