Prices exaggerated for ventilation system, electric aluminum roller shutters

Why roller shutters and no Venetian blinds?

Venetian blinds usually cost extra compared to roller shutters. It was the same for us. Three electric Venetian blinds on windows 2m x 120m, extra charge 3100 euros. Controlled residential ventilation, also Zehnder with HRV, 11200 euros for 135 sqm. Lift-and-slide door 3500 euros extra, but also not taken, see explanation Electric roller shutters I cannot say, as they were included in our standard.

In addition, @11ant might also advise you on (expensive) aluminum elements in that area because it is heavily mechanically stressed. Turn/tilt elements can remain cheaper plastic ones.

That's how it is. Aluminum is (in terms of purchase price) about 20% more expensive than PVC (list price). There are discounts for PVC, but not for aluminum (profile, not covers). The actual aluminum price is therefore unfortunately not 120:100, but 120:70. However, you also get an approximately three times longer replacement interval. So, calculated economically, aluminum is cheaper. But since most private builders calculate like consumers and I am capable of learning, I recommend aluminum here only for the stress and large elements.

Note: I had looked at lift/slide and was initially enthusiastic (would have been 2.5 m wide). But everyone else advised me against it and preferred the normal turn/tilt combo towards the terrace. And that was exactly the right decision. You can open a hinged door faster and easier than the elaborate lift/slide piece.

This width would, in my view, specifically also be the limit to even consider lift/slide at all. In general, lift/slide is an explicit neednt-have and is, in my view, so heavily demanded solely out of herd mentality. You cannot let the cat out more tediously than with the linear movement of a monster. At this point, you can guiltlessly "stick" with PVC for turn/tilt (and gladly apply that to the front door).

no roller shutters but venetian blinds everywhere

I will never understand this popular OR linkage. But there are also people who order their car with an electric motor and then leave out the combustion engine—that is just different, not better. Those who follow the majority should not disregard that the majority is only close to average smart (> normal distribution).

I will never understand this popular OR linking. But there are also people who order their car with an electric motor and then omit the combustion engine - that is just different, not better. Those who follow the majority should not disregard that the majority is only near average intelligence (> normal distribution).

I did not understand that (read it three times). Would you like to explain it? My assumed interpretation is: One should/may mix according to need.

I didn't understand that (read three times). Would you like to explain it?
My presumed interpretation is: One should/may mix according to need

How much longer I can explain something here remains to be seen. Very likely I won't want to anymore soon (which is not because of the community, the fish stinks from the head). P.S.: if I'm gone (the one two months ago was only a break), I won’t come back!
Your interpretation is correct: In my opinion, reasons for venetian blinds do not argue against omitting roller shutters. Both have their purpose and their justification.

maybe interesting for the OP. I have had roller shutters in all houses/apartments so far. But I knew Venetian blinds from other apartments. I have never regretted for a second having chosen Venetian blinds. Shade while still letting in daylight. Dark enough (for me, otherwise there are Z-louvers). The only thing I regret is having spared everything in the bathroom. Now I only have one of those internally mounted retrofitted "Zipscreen?" I could imagine having blinds in bedrooms for others. But since the appearance from outside was also somewhat important to us, we would have had a mixed setup on the north side. We did not want that.

P.S. We have been driving fully electric at the office since this week (3x Tesla Y, 1x MX30). Two of the Teslas drive a lot (over 50,000 per year). I honestly find no disadvantages to the fully electric drive and driving. So it’s different AND better (but surely there is more than one opinion here ;-). I’m only writing this because I interpreted from your last comment that you are more of a fan of hybrid (and think it combines the best of both worlds)

P.P.S. I also would not accept another forced break and agree with you 100% on that point

I have never regretted choosing venetian blinds for a second. Sun protection yet daylight. Dark enough (for me, otherwise there are Z-louvers). The only thing I regret is having saved everything away in the bathroom. Now I only have some inwardly installed retrofitted "zipscreen?"

That might also be a viable combination solution (?)

P.P.S. I would not accept another forced break either and agree with you 100% on that point

I have not had a forced break so far. My recent two-month forum coma was my own decision, even if the reasons were not with me. But if the helping hand is struck or bitten, then that's it.