The technology for building integration has several aspects. One of the most important items is the roof integration.

The collector is part of the watertight barrier of the building and care must be taken especially with fixing the collector between the roof tiles. A safer way is the construction with the collector on top of the roof tiles, but this is aesthetically a poorer solution and does not save on building material.

The pumped systems have a better possibility for building integration than the thermosiphon systems. The storage tank
that has to be above the collector limits the possibilities for building integration. A solution that is practised by Solahart is to have the tank inside the house in the top of the attic and on the bottom of the sloped roof.

Recently a new invention in building integration has been carried out in the Netherlands. The solar ridge makes it possible to integrate a domestic solar hot water system in the ridge of the roof. In this case a south facing roof is no longer needed. This solution is also very suitable in some older (traditional) buildings.