Clearview 238 - September 2021 | Page 73

PROUD SPONSOR OF GLASS & SEALED UNITS EXTRA
Glass & Sealed Units Extra
OVERVIEW
Solution and benefits
Project duration
Just under 536 ft ² of dynamic electrochromic SageGlass double glazing on 17 fixed and tilt / turn aluminum frames :
� Automatically adjusts its tint level based on the level of sunlight while preserving constant views of the surrounding landscape . � Manual tint control available . � Gradual , silent switching between four different tint levels . � Optimum comfort for building occupants while regulating the quantity of light and glare . � Avoids overheating caused by the west / south-east orientation . � No shades blocking the view – occupants stay connected to the outdoors while the glazing is tinted . � Does away with maintenance for additional features . Key criteria for the part of the building on stilts . � Limits air conditioning requirements .
18 months – building completed in November 2020 Windows enter operation in June 2020
THE SMART WAY TO CONTROL HEAT AND LIGHT
The glazing is connected to a control system ( at a low voltage of 2.5 V ) that automatically regulates the tint level based on environmental settings throughout the day . Four states are defined based on the solar factor ( g ) and light transmission ( TL ):
• “ Clear ” – g = 0.38 and TL 60 % when it ’ s raining or the sun is rising or setting ,
• “ Light ” – g = 0.12 and TL 18 % when the sun ’ s first rays appear ,
• “ Strong ” – g = 0.07 and TL 6 % when better solar protection is required ,
• “ Maximum ” – g = 0.04 and TL 1 % to protect against glare caused by direct sunlight .
The glazing can also tint on demand in manual mode using wall switches installed in the classrooms . A useful option if teachers need a little shade to put on the projector or read aloud in a calmer setting .
There are several economic beneftis : Smart glazing will allow the school to reduce its energy bills by regulating the influx of heat throughout the day and over the seasons . In summer , the building will require less air conditioning . In winter , the glazing will
Project description
Why did the works take place ?
Deconstruction and reconstruction of a 10,764 f ² school with two kindergarten classes ( junior and intermediate ), three elementary school classes ( CE2 , CM1 and CM2 ), a preschool , an exercise room and a multimedia room . The school has 113 pupils and 11 staff ( six teachers and five support staff ).
The project winds its way around the outer limits , adapting to the specific features of the plot that is small in size while dominating a slope with a drop of twenty feet to the west . This location offers outstanding views of the Limousin hills and bright and comfortable classrooms .
Facetting of the facades reinforces the “ organic ” location and echoes the hilly landscape . To open up as much space as possible , the building is supported by stilts , creating the sense of floating above the slopes . The facades and roof feature an aluminum diamond cladding in a zinc gray and gold color that matches the concrete gray aluminum joinery . Facing the yard , warm wooden “ marquetry-style ” cladding with a clerestory design creates a fascinating amplified effect .
The mayor wished to make a distinct separation between the elementary and middle school ( the former school being outdated and located on the middle school premises ). The project was required to bring elementary and kindergarten together in pleasant and comfortable surroundings with quality architecture .
allow the heat from the sun to penetrate the building , reducing heating requirements .
The solution does away with maintenance requirements for traditional shade systems ( shutters , sunshades and so on ) – all the better for the section of the building on stilts , difficult to access from the exterior .
SUPPORT THROUGHOUT THE PROJECT
The SageGlass regional design manager attended meetings between OX ARCHITECTURES and the project owner . His product demonstrations helped officials and teaching staff alike check out and get on board with this innovative solution .
A dedicated project manager then helped to design a control system adapted to the school ’ s specific needs , and worked with the project owner , building contractor and electricians to ensure that everyone understood all the necessary information . As solar control is built into the coating of the double glazing , no shade system is required . The overall implementation of the facade is made simpler .
Once the glazing was fitted and the power connected , SageGlass configured the system based on the needs of the school and its occupants and tested all the system ’ s components . If required , it will also be possible to adjust the configuration remotely free of charge after several months up and running , based on changing requirements and each teacher ’ s preferences .
www . sageglass . com
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