Regional School Uewersauer - Luxembourg

Etu d e d e ca s : Re g i o n a l S ch o o l Ue we r s a u e r - Lu xe m b o u r g
S i te We b : h ttp ://www.co n s tr u cti o n 2 1 .o r g /fr a n ce /
Regional School Uewersauer - Luxembourg
PUBLIÉ PAR JEAN-MARIE | 0 9 JUIN 16
Type de pro jet : Extensio n
Type de bâtiment : Eco le maternelle,
crèche, garderie
Année de co nstructio n : 20 12
Zo ne climatique : [Cfb] Océanique hiver
tempéré, été chaud, pas de saiso n sèche
Surface nette : 2 375 m 2 SHON
Co ût de co nstructio n : 5 20 5 0 0 0 €
No mbre d'unités fo nctio nnelles : 11 Enfant
Co ût/m² : 2 19 2 €/m 2
Co ût/Enfant : 473 18 2 €/Enfant
15, rue Mgr Fallize , 9 6 55 Harlange,
Luxembo urg
// Description
The primary cycle scho o l is co nnected to a scho o l building and an existing spo rts hall alo ng the creek Walterbaach. Design o f
different vo lumes co nnected by a cano py o verlo o king a game terrace and o riented to the natural enviro nment o f the site. A
co vered co urtyard was created between the existing building and the classro o ms which pro vides access to the different flo o rs
o f the new building and existing buildings such as the fo rmer spo rts hall and canteen / kindergarten. The co nstructio n was
carried o ut in timber frame fo r the gro und flo o r and first flo o r. Only a few co ncrete elements were executed in these flo o rs
(stairs and elevato r shaft) and, fo r static and safety reaso ns. These elements are materialized by the visible co ncrete walls
who se surface has been structured with vertical wo o d planks. The basement, dedicated to technical equipment and sto rage, is
fully apparent with ro ugh co ncrete. Mo st o f the wo o den elements were prefabricated, which helped save time o n site and gave
the o ppo rtunity to wo rk simultaneo usly inside the building. These wo o den elements were co mpletely co vered with plaster to
ensure their fire resistance and to avo id o ver-sizing o f the wo o den building elements to achieve sufficient strength.
Plus de dé t ails sur ce pro je t :
http://www.wirtzarchitecte.lu/fr/no s-pro jets/eco le
Fiabilit é de s do nné e s :
Auto -déclaratio n
// Intervenants
Bureau d'études autre
No m : Syntec
Mr Peter ugido s / +35226 78 20 10
Site Web : http://www.syntec.lu
Actio n : technical studies, fo llo w up o f heating installatio ns, ventilatio n
Architecte
No m : Jean-Marie Wirtz
Mr Jean-Marie Wirtz - +352 25 33 10
Site Web : http://www.wirtzarchitecte.lu
Actio n : Design, Co nstructio n site management
Maître d'ouvrage
No m : Syndicat interco mmunal
Mr Gira - +352 9 3 70 9 0 241
Site Web : http://www.regio nalscho ul-uewersauer.lu/
Actio n : co ntracting autho rity
Bureau d'études structures
No m : Bered so lutio ns SARL
Mr Ro land Bastenier - 9 5 8 0 9 6
Site Web : http://www.bered.lu
Actio n : Statistical studies, co nstructio n site management, infrastructures
Mo de co nt ract ue l :
Lo ts séparés
Dé m arche dé ve lo ppe m e nt durable du m aît re d'o uvrage : The 3 cities respo nsibles o f the scho o l are part o f the
climate agreement and want municipal buildings to be reno vated efficiently.
De script io n archit e ct urale : Co nstructio n based o n lo w energy criteria:
- thermal insulatio n o f walls o f +/- 24cm.
- mineral thermal insulatio n o f flat ro o fs: +/- 24cm.
- mineral thermal insulatio n o f flo o r slabs: +/- 14cm.
- Installatio n o f high perfo rmance exterio r wo o dwo rk.
- Air tightness o f the building co ntro lled via a blo wer do o r test.
The building as been design in o rder to o ptimize the co ntributio n o f so lar energy and natural light into the building thro ugh
large windo ws in the classro o ms and thro ugh the skylights at the co urtyard. Two o f these skylights give the po ssibility o f
having fresh air if necessary.
The building was built co ntiguo us to an existing building to pro vide a co mpact energy to wer respecting the ro ute o f the creek
"Walterbaach". This design permits maximum preservatio n o f the enviro nment and simultaneo usly o ptimizes the building
area.
- Renaturatio n o f the creek by banks rehabilitatio n.
- New plantings aro und the building.
- Area designed aro und the building using natural materials such as grass and natural sto ne fo r access paths.
- Building o f a sto rm sto rage reservo ir.
- Use o f LED lighting with presence detecto rs and brightness management.
- Classro o ms lighting divided in two distinct zo nes fo r better light management.
- Heat management thro ugh external blinds with centralized management.
- Use o f delay taps.
- Mechanical ventilatio n witho ut air co nditio ning.
- Use o f enviro nmental friendly materials requiring little maintenance
Et si c'é t ait à re f aire ? : using even mo re enviro nmental friendly materials requiring little maintenance, and a design
allo wing mo re energy savings.
Opinio n de s o ccupant s :
users are satisfied with the building
// Energie
Consommation énergétique
Be so in e n é ne rgie prim aire : 34,9 0 kWh PE/m 2 /an
Be so in e n é ne rgie prim aire bât im e nt st andard : 172,46 kWh PE/m 2 /an
Mé t ho de de calcul : RGD du 31 ao ût 20 10 - bâtiment fo nctio nnel
CEEB : 0 kWh PE / €
Co nso m m at io n d'é ne rgie f inale : 53,6 0 kWh FE/m 2 /an
Ré part it io n de la co nso m m at io n é ne rgé t ique : In this case, it is difficult to determine the exact amo unt o f energy
co nsumptio n since the building is part o f a co mplex o f several buildings with the same energy netwo rk. Furthermo re, new
buildings were achieved less than a year ago .
Plus d'inf o rm at io n sur la co nso m m at io n ré e lle e t le s pe rf o rm ance s : No evaluatio n o f the energy co nsumptio n
since the achievement.
Performance énergétique de l'enveloppe
UBat de l\'e nve lo ppe : 0 ,6 6 W.m -2 .K-1
Co e f f icie nt de co m pacit é du bât im e nt :
0 ,33
Indicat e ur : DIN EN 138 29 - n50 » (en 1/h-1) (I4) m 3 /H.m 2 n50 (Vo l/H) Q4
Et anché it é à l'air : 2,20
Plus d'inf o rm at io n sur l'e nve lo ppe : The o uter walls are made o f a wo o den frame co vered with a fiber cement
exterio r cladding plates and who se U-value = 0 .19 W / m2K. The slabs between the basement and gro und flo o r are made o f
a co ncrete slab insulated with 13 cm insulatio n with underflo o r heating; U-value o f this slab is U: 0 .55W / m2K. The ro o f is
co mpo sed o f a wo o den frame, the U-value o f U = 0 .16 W / m2K.
Opinio n de s ut ilisat e urs sur le s syst è m e s do m o t ique s : users are satisfied
// EnR & systèmes
Systèmes
Chauf f age :
Réseau de chauffage urbain
ECS :
Réseau urbain
Raf raîchisse m e nt :
Aucun système de climatisatio n
Ve nt ilat io n :
Surventilatio n no cturne (naturelle)
Ene rgie s re no uve lable s :
Chaufferie bio masse
Pro duct io n d'é ne rgie re no uve lable :
10 0 ,0 0 %
Bâtiment intelligent
GT C : KNX-DDC
Opinio n de s o ccupant s sur le s syst è m e s do m o t ique s : Satisfied . Additio nal switches were placed fo r the
management o f external blinds. Indeed, these may be maintained in o pen po sitio n during the cleaning o f windo ws amo ng
o thers
// Environnement
Emissions de GES
Em issio ns de GES e n phase d'usage :
12,30 KgCO 2 /m 2 /an
Em issio ns de GES avant usage : 16 3,0 0 KgCO 2 /m 2
Duré e de vie du bât im e nt (anné e ) : 50 ,0 0 an(s)
Em issio ns de GES e n no m bre d'anné e s d'usage : 13,25 an(s)
Mé t ho do lo gie : DIN 18 59 9
Analyse du Cycle de Vie :
Eco -m at é riaux :
FSC wo o d used fo r the wo o den frame
Eau et qualité de l'air intérieur, santé et confort
Co nso m m at io n annue lle d'e au issue du ré se au : 350 ,0 0 m 3
Co nso m m at io n annue lle d'e aux grise s re cyclé e s : 0 m 3
Co nso m m at io n annue lle d'e au de pluie ré cupé ré e : 0 m 3
Indice d'aut o -suf f isance e n e au : 0 %
Co nso m m at io n d'e au/m ² : 0 ,15 m 3 /m 2
Co nso m m at io n d'e au : 31,8 2 m 3 /Enfant
Co nce nt rat io ns sim ulé e de CO2 e n int é rie ur : NA
Co nce nt rat io ns m e suré e s de CO2 e n int é rie ur : NA
Co nf o rt t he rm ique m e suré : NA
Fact e ur lum iè re nat ure lle : 5%
Qualit é de l'air int é rie ur : NA
Co nf o rt & sant é : The building as been design in o rder to o ptimize the co ntributio n o f so lar energy and natural light into
the building thro ugh large windo ws in the classro o ms and thro ugh the skylights at the co urtyard. Two o f these skylights give
the po ssibility o f having fresh air if necessary
Co nf o rt aco ust ique : Highly so und abso rbent ceiling, classro o ms with aco ustic insulatio n do o rs o f 37dB
// Produits
Janitza UMG 511
Fabricant : Janitza
Co nt act f abricant : Fo r To p - Auto matio n and energy co ntro l - Tel: +3138 337270 0
Sit e Int e rne t f abricant : http://www.janitza.co m
Cat é go rie de pro duit :
De script io n:
Easy use, direct co mmunicatio n with maintenance, po ssibility o f multiple data co llectio n
Co m m e nt aire s:
the technical o ffice is satisfied
// Coûts
Co ût de co nstructio n : 5 20 5 0 0 0 €
Coûts de construction & exploitation
Co ût glo bal de ré f é re nce : 2 750 ,0 0 €
Co ût glo bal de ré f é re nce /Enf ant : 2 750 ,0 0 €/Enfant
Co ût é t ude s : 30 0 0 0 0 ,0 0 €
Co ût t o t al : 6 9 35 6 8 4,73 €
Aide s f inanciè re s : 0 €
// Environnement urbain
Enviro nne m e nt urbain : The co nstructio n site is lo cated in the village center, bo rdered by a stream and surro unded by a
green enviro nment (a fo rest and agricultural area)
Scho o l buses sto ps have been implemented to allo w the students fro m the 3 cities to reach the scho o l using public bus
netwo rk. A few sho ps such as the po st o ffice, a bakery and a restaurant are lo cated nearby.
Surf ace du t e rrain :
59 6 0 0 m 2
Surf ace au so l co nst ruit e :
Espace s ve rt s co m m uns :
Parking :
17.35 %
1250 0
6 8 parking spo ts
// Qualité environnementale du bâti
Qualit é e nviro nne m e nt ale du bât i :
aco ustique
co nfo rt (o lfactif, thermique, visuel)
efficacité énergétique, gestio n de l\'énergie
gestio n du bâtiment, maintenance
// Concours