Newington College – Sesquicentenary Building Project

The new curtain wall at Newington College

G.James has recently finished work on the Sesquicentenary Building Project at Newington College in Bankstown, Sydney. The bulk of this project comprises two new combined buildings – The Lawrence Pyke Science Centre and The Tony Rae Resources Centre Library. The project was designed by Budden Nangle Michael & Hudson Architects, and builder A W Edwards was contracted to construct it.

Foyer to the building.G.James’ work on the project comprised the design, supply and installation of windows, doors, curtain walls, glass walls, glass canopies, a glass greenhouse, aluminium cappings and soffits– utilising our 850-500, 651, 451, 475 and 476 Series frames. Jockey sashes from our 150 Series were required for most windows, and some windows also featured curved heads. G.James’ Sydney Commercial Façades division carried out the work on this project.

Noise Reduction

Acoustic laminate was used extensively throughout the project to minimise disruption to classes from external noise. Typically 12.76mm acoustic laminated glass was used externally and 10.76mm clear Low E coated ccoustic laminated glass was used internally in jockey sashes and internal skins. This was an important consideration as Newington College sits directly below the approach flight path into Sydney Airport with approaching aircraft flying very low directly above the school.

Curtain Wall Glazing

Curtain wall glazing.Four “curtain wall” sections were defined by the Architect and included in G.James’ scope of work. Two of these were fabricated as 850-500 Series structural glazed curtain walls. The Stair glazing used the 850-500 Series structural glazed frame as a window wall fitted between steel horizontal supports. Coloured back glass was used to infill between the frames and hide the steel. Jockey sashes and secondary frames were used behind these frames to create large cavities for acoustics. On one curtain wall an additional 850 Series frame was used as an internal frame to provide the nominated 400mm airspace.

Dual skinned Curtain Wall

The most prominent feature of the building is the final curtain wall  – pictured at the top of this post. This is a dual skinned arrangement with the outer skin built out from the building by a metre with three horizontal steel trusses. The glazed height of this wall is approximately 9.4m and is glazed with pieces of glass each approximately 4.7 m high by 2m wide – weighing a hefty 300Kg. This glass is supported by glazing channels top and bottom, and also by 15mm annealed glass fins vertically. The internal glazing skin comprises G.James’ 450 Series frame fitted with the flush face to the inside and incorporating jockey sashes fitted in-line with the fixed glass for access and maintenance. The metre wide cavity between the glass is ventilated and includes 600 mm wide horizontal and vertical automated tracking sun shades installed into this space by another contractor.

G.James has also supplied and installed soffit linings below this glazing, metre wide cappings over the cavity, and also to the other curtain walls. Several glazed awnings and a glazed greenhouse were also completed.

Official Opening

The buildings will be officially opened in July as part of the 150th anniversary celebrations at Newington College.

Project Update: KSD – Hamilton Harbour

Hamilton Harbour - KSD building

We first mentioned Hamilton Harbour – a joint venture between developers Devine Limited and Leighton Properties, designed by Cox Rayner Architects on our blog several months ago. Back then, we were putting finishing touches on the third residential building of the mixed use development. Now, a little bit further down the line, we have nearly completed the façade on KSD – a 5 floor commercial building on the site.

ConstructionPartially installed Façade

The KSD building makes use of a range of G.James façade products. Our 546 series curtain wall system with IG units was used to create the façade. LE40 coated ‘Evergreen’ glass was selected to meet required performance criteria. Our 775 series sunshades and sunblades have also been used to improve the performance of the façade, whilst enhancing the aesthetic value of the building.

From project acceptance to install was a very quick turn around, our nearby Fison Avenue factory was a integral part of achieving the programmed dates. Installation on site also happened over a short timeframe – commencing on the 10th of October, with the main curtain wall completed by 15th November.

Looking Forward

G.James have enjoyed a close working relationship with Devine Constructions, which has ensured tight project deadlines are met on-time. We hope to continue our collaberation in the future.

Choosing the right windows and doors for your climate

Windows and Doors to match your climate

Windows provide light, fresh air and great views to the outside world, but they can also be a major source of heat transfer, making your home unbearably hot in summer and freezing cold in winter.

Recent advances in glazing materials have improved the performance of windows to the extent where choosing energy efficient windows can prevent heat transfer, significantly reducing your energy costs and make your home noticeably more comfortable.

Different climates across Australia

Australia has 8 zones ranging from hot (zone 1) to cold (zone 8).Australia has a diverse range of climates. The National Construction Code divides Australia into eight different climate zones. These climate zones can be grouped more broadly into three climate categories, which describe the predominant conditions in the area:

  • Hot Climate (zones 1, 2 & 3)
  • Mixed Climate (zones 4 & 5)
  • Cold Climate (zones 6, 7 & 8)

Hot Climate

In hot climates, cooling your home and preventing heat gain is a high priority. When choosing windows, look for types with a lower solar heat gain coefficient (SHGCw) and those that provide good ventilation such as G.James 050 Series louvres. Choose products glazed with a tinted glass or one of the high performance products from the G.James SOLECT® range.

Cold Climate

In colder climates, heating your home and preventing heat loss is the priority. Heat loss during the cooler, winter months can be reduced by installing window types with a lower U-value. Choose products that are double glazed such as G.James Twin-Glaze or ecoTHERM insulated glass units (IGUs) or one of the high performance products from the G.James SOLECT® range. Maximise the passive solar gain by choosing a glass eg clear, which has a high solar heat gain.

Mixed Climate

In a mixed climate both heating and cooling your home are important, so consider which of these is the primary concern. Depending on whether you’re looking to focus on heating or cooling, you should refer to the relevant recommendations above. If neither heating nor cooling is the priority, choose a window with a lower U-value and a mid-range solar heat gain to provide good year round performance.

Heating/Cooling Stars

You can find cooling and heating stars against all our window products in the professional centre of gjames.com.

Between 46%-61% of a home’s heating energy can be lost through windows, while  79%-86% of heat can be gained. Therefore improving the thermal performance of a window can massively reduce energy costs and greenhouse gas emissions. WERS (Window Energy Rating Scheme) rates the energy impact of residential windows in Australia. Energy efficiency of windows is rated using the WERS heating/cooling star system.

  • Cooling stars measure a window’s ability to retain heat within the home.
  • Heating stars measure the ability of a window to reduce the amount of heat gained from sunlight.

The aim of WERS is to help home builders and home owners evaluate the relative energy (heating and cooling) performance of different types of windows by rating that performance in terms of stars. Having no stars indicates a very poor performing window while ten stars signifies superior performance.

G.James provides a comprehensive WERS search for all G.James window products. It can be found in the professional centre of gjames.com.

Other Heating & Cooling Factors

Windows with large opening areas maximise opportunity for ventilation and cooling, but larger areas can reduce energy efficiency. Installing an awning or a sunshade over a window will reduce the impact of solar heat gain, and effective window configuration can also improve seasonal efficiency. Knowledge of these factors will help you make an informed choice, but an experienced local glazing professional can also help you devise a solution to suit both your preferences and local conditions.