prefabbricazione leggera per il retrofit - Docenti.unina.it

Università degli Studi di Napoli Federico II
Dipartimento di Architettura
Corso di Laurea Magistrale in Architettura – Progettazione Architettonica
Laboratorio di Progettazione dei Sistemi Ambientali B - Tecnologia
prof. arch. Sergio Russo Ermolli
a.a. 2014-2015
PREFABBRICAZIONE LEGGERA PER IL RETROFIT
Passive House Institute-Wood façade systems (architects Naumann & Stahr)
The basic design of the building system is a wood frame structure. Every 1.283 m an I-wood beam is located with OSB panels in between to the
inside of the inner belt. The outer casing is made of thermo-wall plaster tiles that are nailed to the beams. Neither the outer nor the inner shell
have load bearing functions allowing alternatives like ventilated timber formwork, wood cement board with paint or a mixture of various facade
systems. The wall panels are manufactured basement high and an overall building height of five floors is possible
Solar-active façade systems (GAP solution)
A stable honeycomb structure made of natural materials is the innovative
component in this façade system. The rays of the winter sun penetrate
deep into the honeycomb and increase their temperature. This
autonomous zone reduces heat loss to almost zero and reduces thermal
bridges. During summer much of the radiation is reflected due to the comb
structure itself. Depending on the orientation the improvement of the Uvalue of the exterior wall is up to 90% or more.
GlassXcrystal Phase Change Materials (PCM)
A triple insulating glazing unit
provides the system with excellent
thermal insulation
of a U-value of U=0,48 W/m2K. A
prismatic pane in the outermost airgap reflects the solar radiation
at high altitudes in summer and
transmits it at altitudes below 35° in
winter. As a key component acts
the slim heat storage module,
equivalent to a storage capacity of
about 20 cm concrete. The storage
material is a salt hydrate PCM
(Phase Change Material). Solar
heat is stored in the PCM by
means of a melting process.
During night time and the following
days the stored heat is delivered to
the interior during recristallisation.
The salt hydrate is contained in a
Polycarbonate box. The interior
toughened glass pane could
optionally be coated with a screen
printing. The whole system
appears as a translucent wall.
Energy façade systems
Optimised building equipment (heating, cooling and ventilation) and/or renewable energy are integrated in these façade panels,
which are mainly used for new development and office buildings.
i-modul façade
The i-module Façade is a cladding system with integrated building
services for heating, cooling, ventilation and heat recovery as well as
lighting and sound insulation within unitized cladding panels which
measure a mere 20 cm in depth.
Photovoltaic (PV) integration
For the integration of PV in facades, new fixing systems were developed (for example in the framework of the EU-funded
project: “PV-Enlargement”). They comply with load bearing requirements and at the same time fulfill high aesthetic design
expectations.
Hybrid façade systems
In hybrid façade system new “smart-material“, such as nano-, aerogel and vacuum insulated panels, are integrated. Most of these materials
are still very young technologies and further development and research is necessary. Most promising development can be found for
Vacuum Insulated Panels
Insulating effect of VIP is 5 - 10 times better compared to conventional insulation systems. VIP is still a very young technology and less
suitable for processing at construction site, as they can easily be damaged. Accordingly this material is suitable for prefabricated building
elements or sandwich elements. Individual demonstration projects have been realized, however, further experience is necessary focusing
on the following aspects: thermal bridges, moisture problems, fire resistance, risk of damage by building users, durability of the vacuum
(currently 30 years), maintenance or replacement of single panels.
Vacuum Insulated Panel
•
•
•
•
Conductivity 0.007 W/m.K
Product Thickness : 20 mm
Modular Panels
Lower Impact on Human Health
Vacuum Insulated Panel
BALCONI
Prospetti nord dell’edificio residenziale “ SHE.AG1”
Progettisti: Mingozzi / COPES
Fonte: Costruire in laterizio n° 125, Settembre/ottobre 2008
BALCONI PREFABBRICATI in c.a.
La piattaforma
è inclinata e
con un sistema
di canaletti
convoglia
l’acqua nei tubi
davanti
Attacco a parete
Profilo di
supporto in
alluminio
Fonte: www.werzalit.de
BALCONI PREFABBRICATI in c.a.
Installazione veloce
Attacco a parete
Materiali di alta qualità
Fonte: www.werzalit.de
BALCONI PREFABBRICATI in c.a.
I balconi prefabbricati che presentano la parte inferiore liscia da cassero, vengono realizzati in
stabilimento secondo le più svariate esigenze di progetto. Pezzi speciali per taglio termico, gocciolatoi e
sponde fermagetto vengono già inseriti in fase di produzione
Fonte: http://www.progress.cc/it/prefabbricati-alto-adige/altri-componenti-prefabbricati/balconi/
CONNETTORI A TAGLIO TERMICO PER BALCONI
Il sistema Isolan è un componente strutturale utilizzato per
collegare i balconi esterni in calcestruzzo alle solette interne. Esso
fornisce continuità sia all'armatura del calcestruzzo sia
all'isolamento termico del muro che protegge l'edificio dagli
effetti dei ponti termici.
Fonte: http://www.joint.it/cat-ita/s013/isolan.html