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Legal notice

This is a translation from the German ‚Impressum‘

Ralf Plag
Ubstadter Str. 7
76694 Forst
Phone: +49 7251 3222111 (no consultation)
Email: info[this piece of text is not part of the email address]@u-wert.net or via contact form
Internet: www.u-wert.net

Registergericht: Amtsgericht Mannheim
Registernummer: HRB 713022
USt-IdNr: DE297410925
Responsible with regard to contents according to § 55 Abs. 2 RStV: Ralf Plag


This website intends to support you in planning your insulation. However, it cannot replace the experience of an expert. Hence, please do not rely on this website and its calculators only. Always try to get advice from e.g. an experienced architect. The information and services offered on this website is provided „as is“ without warranty of any kind, either expressed or implied.


The content of this website was created with greatest care. However, no responsibility is taken for the correctness, completeness and up-to-dateness of the content as well as for the correct functionality of the online calculators. Corresponding to § 7 Abs.1 TMG, I am, as provider of own content on these web pages, responsible according to general law.
However, according to §§ 8 to 10 TMG, I am, as provider of content, not
committed to check transmitted or stored external information or to search for situations that suggest illegal actions. Requests for removal or blocking of usage of information are hereof not affected.
Any liability in this regard is possible only after a certain infringement has occured. Upon knowledge of such infringements the corresponding content will be removed immediately.

Liability for links

Our website contains links to websites of third parties, on whose content we have no influence. Therefore, we cannot provide any warranty for those external content. For the content of the linked web pages, solely the provider of these pages is responsible. The linked pages have been check for infringements when the link was placed. No illegal contents have been found at that time. A continuous control of linked pages without evidence for any infringement is not reasonable. Upon knowledge of any infringement, we will remove the corresponding links immediately.


All content created by the owner of this site is subject to german copyright. Reproduction, modification, distribution and any kind of usage beyond copyright law requires the written permission of the corresponding author. Downloads and copies of this website are granted for personal, non-commercial use only. Content which has not been created by the owner of this website is marked appropriately and was used respecting its copyright. If you find a copyright infringement nonetheless, we kindly ask you to inform us. Upon knowledge of any kind of infringement, we will immediately remove the corresponding content.

Brand names

The use of brand names and product names serves solely your information and is neither a trademark infringement nor a recommendation. We deny any responsibility for the choice, quality and usage of the mentioned products.

Privacy Policy

You may use this website without providing and personal data. In order to use extended features, like e.g. storing of your data on our server, a registration is mandatory which requires Email adress, user name and password. Your data is not disclosed to any third parties. You may ask for the removal of your account including all personal data via contact form.

Please note that the data transmission via internet may exhibit security vulnerabilities. A complete protection against access from third parties is therefore not possible.

Usage of the personal data provided in these legal notice by third parties for sending advertisement and information material which has not been requested is forbidden.

Privacy polcy – Adsense

We use third-party advertising companies to serve ads when you visit our website. These companies may use information (not including your name, address, email address or telephone number) about your visits to this and other websites in order to provide advertisements about goods and services of interest to you. If you would like more information about this practice and to know your choices about not having this information used by these companies, click here.

Privacy policy – web analytics

This page uses the web analytics system called ‚Piwik‘, an open source software which is installed on our webserver. Piwik uses cookies which are stored on your computer for the analysis of the website usage. The information produced by the cookie including your IP address will be stored on our server. You may prevent the storage of cookies by using appropriate settings of your web browser. With using this website, you accept the use of this data in the afore mentioned manner and purpose.

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Infos & Kosten
Infos & Kosten
Infos & Kosten
Gewerbliche Nutzung
Gekreuzte Balkenlagen
Werbefreies Rechnerlayout
Anpassbares PDF-Dokument
Baustofffarbe frei wählbar
Baustoffe aus DIN 4108-4 & DIN 10456
U-Wert nach DIN 6946
Feuchteschutz nach DIN 4108-3
Berechnungen in Ordnern speichern
Eigene Wärmeübergangswiderstände
3D-Ansicht im PDF-Dokument
Speicherplätze für Berechnungen151002501000
Eigene Baustoffe10100100100
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*U-Wert, Feuchteschutz, Hitzeschutz, Amortisierung und Wärmeverluste sind Teil des kostenlosen Basis-Kontos.

Alle Angaben und Berechnungen dienen nur der Information und müssen vor einer Nutzung von einer sachverständigen Person überprüft werden. Im Übrigen gelten unsere AGB.
Die gewerbliche Nutzung ist mit Plus-Option, PDF-Option oder Profi-Option gestattet.

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