ᐅ Roof-mounted or integrated solar panels: which is better?

Created on: 20 May 2013 20:31
A
andre02
Hello everyone,

This year we are building our house and want to install a solar system to support the heating. We were recommended to use 6 collectors.

Now our question:
Which is better, rooftop or integrated (in-roof) installation? Are there differences in waterproofing or cost? Or is it the same, just a matter of aesthetics?

I would appreciate any information and thank you in advance.

Best regards,
Andre
N
Noiss
19 Jul 2013 08:02
Hello andre02,

For a new build, a building-integrated solar system is ideal because materials (such as tiles) are saved in the area where the collectors are installed. Visually, this type of solar system offers a significant advantage compared to mounting it on the roof surface, as the seamless integration into the roof covering creates a harmonious appearance without any "visual disruptions." The flashing around the collectors ensures waterproofing and weather protection in the spots where the roof covering is missing.

In terms of cost, a building-integrated system is naturally more expensive because in addition to the collectors, the flashing (eaves flashing, ridge flashing, ventilation caps, intermediate flashing, and side flashing) is required. However, as mentioned, material is saved for the roofing in a new build.

I gathered this information from a blog by "Fession." I think if you want detailed cost comparisons or technical data, you can also consult a specialist online for more information.

In my opinion, due to the advantages mentioned above, I would choose a building-integrated system for a new build.

Best regards, Noiss
€uro
19 Jul 2013 08:51
Noiss schrieb:
...In my opinion, based on the advantages mentioned above, I would opt for an in-roof system in a new build.
For reasons related to summer heat protection, I would always prefer an on-roof option! Just perform a cooling load calculation. Additionally, the efficiency of photovoltaic systems is likely better with this approach.

Best regards
E
Explosiv
31 Jul 2013 10:41
Hi
It is also worth mentioning the aspect of roof pitch. With integrated roof installation, the roof pitch is adopted exactly as is, whereas with rooftop mounting, there is some flexibility to deviate in order to better optimize for the location.