glass external walls -...

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Glass External Walls

(21.4) Curtain Walls

Another GBS CPD/Lecture file to download and www.greenbuildingencyclopaedia.uk

LSBU Tech & Env 2 Lecture

•  Domestic, Small & Medium size buildings

•  Construction methods, materials, services and systems

•  External walls: Glass walls: –  H11 Curtain Walling

–  H13 Structural Glass Assemblies

–  L10 Windows

–  L15 External Solar Shading

–  L20 Doors

–  L30 Glass Stairs, Walkways and Balustrades

–  L40 Glass and Glazing



Performance Requirements

Principles of Element Design

Windows Actions

•  Gravity: downward pull

•  Wind: Motive, Destructive, Penetrative

•  Rain: Moisture deposition, penetration

•  Snow: Moisture deposition, loading

•  Sun: Temp variation, thermal movement, heat gains, Chemical decomposition

•  Dirt and Dust: infiltration, deposition, surface pollution

•  Chemicals: corrosion, disintegration, decomposition

•  Sound: Noise nuisance, from within and from without

•  Attack: Manual, Ballistics, Bomb Blast

Windows Reactions

•  Gravity: Support & restraint

•  Wind: rigidity, resilience, sealing

•  Rain: deflection, impervious skin, absorption and drainage, sealing

•  Snow: deflection, impervious skin, absorption and drainage, sealing

•  Sun: movement joints, insulation, shielding, invulnerable materials

•  Dirt and Dust: repulsion, exclusion, sheilding, cleaning

•  Chemicals: invulnerable materials, exclusion,

•  Sound: Insulation

•  Attack: toughness, lamination, edge restraint, edge protection

Windows Outside

•  Daylight, Sunlight, Glare, Solar Heat gains,

•  Sound Insulation

•  Fresh air, ventilation and Smoke control

•  Wind driven rain and snow

•  Privacy from overlooking

•  Cleaning

•  Security

•  Insect exclusion

Windows Inside

•  Statutory Ventilation, trickle ventilation

•  Thermal insulation, heat losses

•  Emissivity,

•  Comfort conditions

•  Views out and eye level

•  Safety, Containment, Impact, Balustrade

•  Fire

•  Statutory Window Area



11/06/16 © NGS 2007 (21.4)GlassExtWalls 10 Another GreenSpec CPD to download soon

www.greenspec.co.uk

02/07/2009 © NGS 2006 Title 1

H11 Curtain Walling

CI/SfB (21.4) Curtain Walls




11/06/16 © NGS 2007 (21.4)GlassExtWalls 11




www.greenspec.co.uk

02/07/2009 © NGS 2006 Title 1

H13 Structural Glass Assemblies

(21.4) Curtain Walls





www.greenspec.co.uk11/03/2007 © NGS 2006 Title 1

Solar Shading or Brise Soleil

L15 External Solar Shading


16

www.greenspec.co.uk05/10/2006 © NGS 2006 Title 1

Alternative Solar Shading

In all its forms


Roof overhang:

Protect walls from rain and snow

Rain Shelter for pathways and at doorways

Solar shading to glazing

Biodivesity: inhabitation opportunities

Aberystwyth Arts Centre: Architect: Smith Roberts: Peter N Roberts

Balcony offers solar protection Closed glass balustrade offers view and wind shelter. Open Mesh offers view and solar protection

Greenwich Millennium Village and Oxford Science Park Architect: Proctor Matthews

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Open Joint Weather

boarding using Rainscreen principles

breaks up the pressure of the

wind on the glazing behind Acts as solar

shading Earth Centre Doncaster

Solar shading: Common in mainland

Europe Will become

more important in the UK if only

we knew how



© GBE 2007 - 2016

•  Brian Murphy BSc Dip Arch (Hons+Dist) –  Architect by Training –  Specification Writer by Choice –  Environmentalist by Actions

•  Greening up my act since 1999 •  Founded National Green Specification 2001 •  Launched www.greenspec.co.uk 2003 •  Created: GBE at www.greenbuildingencyclopaedia.uk 2015 •  E [email protected] •  Twitter: http://twitter.com/brianspecman •  Facebook: http://www.facebook.com/brianspecman •  LinkedIN: •  Created: 08/12/2007

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glass external walls -...

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