Frame Simulator 5

2D finite element program for calculating heat transfer in fenestration and curtain walling systems. Includes also Frame Composer 4 module.

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Thermal analysis of windows according to ISO 10077-2 and ISO15099


Frame Simulator PRO is a professional tool that allows you to perform complete thermal analysis of windows and curtain walling modules according to the ISO 10077-2:2017 and ISO15099:2003.
It really takes only few minutes to go from your cad drawing, that you can import in the program, to the modelling output. The thermal calculation process is performed in respect of the norm requirements and results are immediately interpretable, thanks to images and graphics of great realism.

In addition to obtaining the Uf thermal transmittance value and the PSI linear transmittance of the spacer, with Frame Simulator is possible to see the the heat flow at each point in the section and to identify the most critical areas requiring improvements.
The program also indicates the condensation risk on the internal frame surface.

With Frame Composer module, supplied with the program, you can calculate the thermal transmittance Uw for complete windows (frame + glazing), from a simple one-sash window to complex fenestrations with multiple sashes. You can even evaluate the contribution of thermal resistance given by curtains and shutters.

In this program are included two calculation modules:
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  • Frame Simulator module – for the fem thermal analysis and evaluation of window frames (Uf, Ψ) and shutters (Ursb) according to ISO 10077-2:2017 or curtain walling (UTj, ΨTj) according to ISO 12631:2017
  • Frame Composer module – for the calculation of Uw and Ucw thermal transmittance and the additional resistance of internal and external screens


The program is validated according to ISO 10077-2:2017 (calculation of thermal transmittance – Numerical method for frames).

How to order
Choose from the options shown above and click on “Add to cart”. If you have chosen the activation with a new USB key return to catalog and add a USB key to your order.
Proceed to checkout and fill in all the fields for billing purposes. If you are not already registered, please enter your user name and password. Login is required to download the installation files.

How to pay
You can choose to pay by anticipated bank transfer or by credit card/Paypal.
If you pay by Bank transfer
After you have entered your order you will receive an email confirmation with the details for the transfer. Software activation and shipment of the USB dongle is possible only after we have recorded your payment. If you want to speed up the process, please send us a copy of your payment order by mail.
If you pay by Credit Card / Paypal
To guarantee the highest security level, payment by Credit Card is entirely processed within Paypal. We do not know and therefore do not control in any way your credit card data.
In case of successful payment you will immediately receive confirmation of Order Completed and you can immediately proceed downloading the installation files. If you do not receive our confirmation, it means that the payment did not go through or your credit card was not accepted. Please try again, maybe with another card and if necessary contact us to see if we received the payment confirmation from PayPal (normally this ahppens immediately).

How to obtain your software
The software is delivered by download from this site. There is no provision on physical media. When payment is completed you will receive an email with the link to download the installation file.
If at the time of the order you were already registered as visitor on our website, please wait that your account is authorized for the download (from a few minutes to a few hours).
If you wish, you can also download the installation software from download page after login.

How to activate the program
You can choose between two modes of activation: with software key or with optional USB dongle.
If you choose to activate with software key
After installing and starting the program you will see a code of 8 characters: send it to us via email to get the activation code. We will send you an activation key as soon as we receive confirmation of payment.
If you choose to activate with USB dongle
You will receive the USB dongle by express courier: we will ship it as soon as we receive confirmation of your payment.

How to use the program
You will find operating instructions, tutorials and documentation within the program in the help menu.
If you ordered online assistance, please send us your request with some alternative dates and times. We will try to schedule the instruction in one of the dates that you require. We will contact you to give you confirmation and send you the link information.

Operating system
You are free to choose the version to install in your computer, Windows or Mac OSX. Please check available versions in software description.

Program and documentation are available in English and Italian. The choice of language is selectable within the program.