An integrated roof must be compared with a complete package of conventional roofing and photovoltaics. Comparing its price with the panels alone leads to a misleading conclusion because it omits the building function. It is equally misleading to assume that integration always results in a lower cost. Two cost estimates with the same scope are needed, for the same roof slope and comparable energy performance. Only then can the investor see what they are paying for. Both variants should result in a finished, weathertight roof and a working installation with the described parameters. Include the roofing, flashings, required layers, installation and the electrical part. In the solution with separate modules, their mounting structure and fixing method are additional.

An integrated roof gives a coherent appearance and combines the covering with energy production. It is best considered for new builds or a planned roof replacement. However, this does not mean it will be the best choice for every building. Sometimes the obstacles are technical conditions, poor solar exposure or an unjustified cost of reconstruction. A reliable decision takes these limitations into account. This ensures the system is installed where its advantages can actually be utilised. If the covering is sound and recently installed, removing it solely for integration may be difficult to justify economically. The value of the remaining service life and the cost of new works must be taken into account. This situation should not be compared with building a house, where the roof is being constructed anyway.