Underfloor heating air-water heat pump. House too warm when the sun shines

Do you have a photo of your sunshade ready?
Aren't there nowadays relatively weather-resistant awnings that might also withstand rain (nanotechnology or something)?

Because a fixed overhanging roof, as you often see on city villas, I don't find nice and it also takes away heat energy from you to warm the house!?

Not directly from mine right now, but they are the currently quite common anthracite-colored aluminum canopies with glass and an underslung awning. So if you Google "terrace canopy anthracite aluminum glass" you'll find various examples; ours is, for example, from Venomenaal, but there are thousands of providers who all offer almost the same. They are mostly modular systems that you can also expand into a cold winter garden (but I'm not a fan of that). Whether it visually fits the house, of course, depends on the house. If the house is somewhat clean in design, I usually actually perceive such canopies as a visual enhancement.

Regarding awnings without a canopy... honestly, I have no idea. However, I assume that no matter how it is coated... as soon as the awning is rolled up wet, you get problems with mold.

Not directly from mine right now, but these are the currently quite common anthracite-colored aluminum roofs with glass and an under-running awning. So if you Google "terrace roof anthracite aluminum glass" you'll find various examples; ours, for example, is from Venomenaal

Okay thanks, now I can imagine what it is. Yes, something like that is really a must if you have south-facing windows. Or else venetian blinds, although I always associate those with office/school buildings... How do you actually keep the glass of your aluminum-glass roof as clean as possible?

How do you actually keep the glass of your aluminum-glass canopy as clean as possible?

This doesn't really fit into this thread or topic, unless you're playing a bad pirate and hijacking it

Since the OP apparently has not installed any sun protection yet, the cleaning of the possible alternatives (here the glazed aluminum canopy with the underlying awning) certainly counts as one of the points to be considered in the selection process!?

we also have something like that - I have the windows cleaned 2-3 times a year anyway, they do the roof then as well.

Since the original poster apparently has not installed any sun protection yet, ....

we have Fubkrollos over Somfy,