This document reflects only the author's views. The European Union is not liable for any use that may be made of the information contained therein. The research leading to these results has received funding from the European Community s Seventh Framework Programme (FP7/2007-2013) under grant agreement n 260162
Impressions from Bolzano tour
History of windows By then local craftsmen were responsible for the window development Nice and well proportioned Kastenfenster windows Box type window Verbundfenster Compendium window
History of windows Around 1965 synthetic paint conquered the market Putty was in use since hundreds of years The time of wooden windows seemed to be all over
History of windows What was the problem? Wood, glass, putty and linseed oil were good partners since hundreds of years The new synthetic paint made a closed plastic bag around the wooden frame
History of windows AND what else?!? 1.Damage of wood below the new synthetic paint because of very high humidity 2.Putty could no more get dry beyond the synthetic paint 3.A gap appears between putty and glass. Lot of water could enter the plastic bag => Exposed windows were destroyed after two or three years
History of windows Some people were taunting my grandfather (a small, local window producer): Why don t you use the new synthetic colours. Normally you are not so old fashioned. Granddad was laughing and said: You will see soon, why!
History of windows This demages cause the birthday of IV68 No putty anymore and double glazing fixed from inside
History of windows AND what else?!? 1.Future development by industrial tool producers 2.End of individual window profiles for different buildings from different epochs and regions 3.Nice proportions lost the game against standard profiles made with standard machinery => End of nice wood windows
Start of our project 9% 9% 4% 2% 2% 4% 1% 33% 33% Auto Car Raumwärme Space heating Warmwasser Hot water Kochen Cooking Geräte Appliance 51% 51% Beleuchtung Lighting End energy consumption of our households (Pistohl) Quelle:Harald Krause
Period of research 9% ventilation 5% frame 12% 51% 2% 4% 1% glass 10% window 22% opake envelope 24% 33% Auto Car Raumwärme Space heating Warmwasser Hot water Kochen Cooking Geräte Appliance Beleuchtung Lighting
Period of research Start of simulations with the profile of a historic casement window 157mm Heat flow = U w = 27,9970 W 2,266 W/(m²K) => Width of the frame as a general Problem of casement windows
Period of research Simulation of a first variant with a thin double glazing Heat flow = U w = 17,2830 W 1,167 W/(m²K)
Period of research Simulation of a second variant with Passive House quality Heat flow = U w = 8,4520 W 0,687 W/(m²K)
Period of research High value of thermal bridge in retrofitting can cause an energetic disaster Psi-value window = 0,512 W/mK Losses fitting = 10117 kwh/a Or = 23 kwh/m²a Or 50% of the heat demand
Period of first prototype Simulation of a compound window Heat flow = U f = Psi Spacer = U w = 8,65040 W 0,85 W/(m²K) 0,0203 W/(mK) 0,7260 W/(m²K) Certifiable as passive house window class pha
Period of first prototype Waaghaus Bozen
Period of first prototype Proportions - Frames and mullions give a positive ensemble Glazing - Restauro strong seems inflated. View from outside and inside should be more quiet.
Period of second prototype Triple glazing with 22mm and the second prototyp Heat flow = U f = Psi Spacer = U w = 9,1307 W 1,00 W/(m²K) 0,023 W/(mK) 0,7220 W/(m²K) Again certifiable as passive house window class pha
Period of second prototype and how it can be adapted to local needs???? Example one: inward opening with Geißfuß
Period of second prototype and how it can be adapted to local needs???? Example two: outward opening
Period of second prototype and how it can be adapted to local needs???? Example three: existing baroque window
Period of second prototype and how it can be adapted to local needs???? Example xx: every thinkable ouside window Any adapted, existing or restored window of your project Relevant for the energy efficiency is the width of the outside frame (more or less solar heat gains).
Status quo of smartwin historic The chameleon effect creates a family of window systems Smartwin historic compendium window window with with thin glazing thin glazing and historic and kind of hinges historic kind of hinges Smartwin historic compendium window with thin glazing and historic kind of hinges This is a passive house window energy efficiency class pha window with thin glazing and historic kind of hinges
Status quo of smartwin historic Smartwin historic box type window with thin glazing and historic kind of hinges This is a passive house window energy efficiency class pha window with thin glazing and historic kind of hinges
Status quo of smartwin historic Smartwin historic compendium window with triple glazing and modern kind of hinges This is a passive house window energy efficiency class pha window with thin glazing and historic kind of hinges
Status quo of smartwin historic Smartwin historic box type window with triple glazing and modern kind of hinges This is a passive house window energy efficiency class pha window with thin glazing and historic kind of hinges
Thermal bridge fitting High value of thermal bridge in retrofitting can cause an energetic disaster Psi-value window = 0,512 W/mK Losses fitting = 10117 kwh/a Or = 23 kwh/m²a Or 50% of the heat demand + moisture and mold = damage of our monuments
Thermal bridge fitting Status quo
Thermal bridge fitting Status quo
Thermal bridge fitting Status quo
Thermal bridge fitting Status quo with new window
Thermal bridge fitting Status quo with new window
Thermal bridge fitting Status quo with new window
Thermal bridge fitting with new window variant 1
Thermal bridge fitting with new window variant 1
Thermal bridge fitting with new window variant 1
Thermal bridge fitting with new window variant 2
Thermal bridge fitting with new window variant 2
Thermal bridge fitting with new window variant 2
Passive House Windows and Monuments They are a good match! and the smartwin family is waiting for new kids!! Thank You! Franz Freundorfer Tel +0049/8033/304098 phc@freundorfer.eu