Houses and buildings need to have Fire Escape doors and openings in the form of doors, windows or a hatch, so that it is possible for the residents to save them selves in case of a fire. The building regulations stipulates the requirements of how large such openings should be.
By using these calculation forms for windows, you are abel to calculating the fire escape opening of a window, when using IPA fittings.
If the calculation shows an fire escape opening, which is close to the minimum requirements, then please contact IPA for a specific drawing of the fire escape opening.
Here under you can download the calculation forms for the different systems (Excel).