Will you expand your house a couple of "little things" that are found again in this agreement.
As initially written, I am building an energy efficient house, which by KfW for the program 153 as - is " KfW Efficiency House 70 " promoted great. For this, the insulation must be thick around my house and other windows to be installed. As KfW these measures need not only confirmed, but these also control ever leaves recommending I to include the following special requests in the Agreement:
- insulation thickness in cm, indicating the WLG (thermal conductivity, for example 035) and which resulting transmission heat loss HT in W / m² K for the whole house!
- annual primary energy demand in KWh / m² a
- Window (IMPORTANT! !!!!!) the U-value must in the contract. Uw is the value of the entire window, so framed, transitional losses and the glass. For my house are energy-saving windows with a U-value of 0.8 required. Since not enough simple triple glazing, check out the window at exactly: the spaces between the discs from arrow (built Trocal profiles) with Aluabstandsbändern If installed, you have only 1.0 Uw!
Take these data necessarily in the contract!
My advice: Better would be to these figures, even the calculation of these values \u200b\u200b- the so-called "energy saving evidence to the Energy Saving Regulation EnEV2009 " - a complete add to the contract. That more than 20-page proof you should consider more than just accurate, at least when it comes from a Christian Schütte of food!
Only then can you know that your roof windows have only a U-value of 1.4. This is very bad , this is like a hole in the roof, there is considerable heat in the sky.
My tip: The roof windows shall be in the contract with the U-value of 0.8!
IMPORTANT wenn ihr mit KELLER baut:
Dieser Sachverständige Ch. Schütte aus Essen bezieht gerne einen beheizten Keller in seine Berechnungen ein, obwohl die Protec nur einen einzigen Heizkörper im Kellertreppenhaus einbaut. Damit kann man aber den gesamten Keller nicht auf mindestens 19 Grad erwärmen. Hier wird sich absolut in einem „Graubereich“ der EnEV bewegt und mit dem Keller die Werte Transmissionswärmeverlust und Jahres-Primärenergiebedarf schön gerechnet. Das könnte fatale Folgen für Euren Kredit bei der KfW haben.
Es reicht nicht, wenn unter der Kellerbodenplatte ein paar Zentimeter Dämmung liegen und die Kelleraußenwände stärker gedämmt werden. Die Kellerdecke the EC must (!) are insulated, or any room in the basement are really heated.
Yet another very expensive special request: a photovoltaic system .
Believe nothing you do not have it in writing. Sold together with the love of the Protec photovoltaic system has to the 1.7 kWh (p). The yield is said at 6 - 8 percent are. This has been mentioned in an interview. In fact, brings the system only just enough money as it costs themselves - and yes in 20 years. The money would bring a savings account everything that really hurts. Uses the Internet. Since there is "Solar Calculator". Module, number and orientation of the roof to enter and you get to the expected yield. Reviewed the request for a special price of Protec. Well? It dawns of who it really deserves fat?
Conclusion of the Treaty:
ask, read, examine everything down in writing, or pray away but better finger.
I signed and would soon report on ...
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