ᐅ How often do you use your roller shutters?

Daily – absolute deep sleepers. Woken up by daylight as early as 4 a.m. in summer? No way. If I don’t have a roller blind available, I use my sleep mask. Otherwise, during the day I am competition for grumpy cat.

Garten2 schrieb:

Until now, I always thought that we save heating costs during the heating season by keeping the shutters closed throughout the house as soon as it gets dark.
Am I wrong with this assumption?
They definitely help during summer heat.

In principle, that is correct.
However, it is more worthwhile in poorly insulated older buildings than in new constructions. I just read a book about insulation calculations, etc., which points out that the energy savings in a well-insulated house can be lower than the loss caused by the additional thermal bridge...

We don’t have roller shutters (unfortunately), but we use blinds and blackout curtains every day throughout the year. In winter, when lights are on inside, as well as at night, and in summer during the day when the sun is shining, and of course at night. They help a bit with heat and provide darkness for sleeping. I would never build without them and we will retrofit them as soon as it is financially possible.

kati1337 schrieb:

I don’t remember all the details, but I think they have especially large roof overhangs to reduce direct sunlight inside.
The biggest problem is more in winter when they’re heating and have visitors. It gets really uncomfortable when suddenly 8 instead of 2 people are in the living room, because the heat has nowhere to go. =)

But even a passive house has windows you can open briefly, right?

SoL schrieb:

Hello everyone,

I am interested in how often you use your roller shutters and how valuable you find them.

The roller shutters in our house are controlled via smart home and are therefore used daily.
The external blinds on the ground floor follow a fixed schedule. Every morning at the same time, they tilt to the same angle. In the evening, 45 minutes after sunset, they close completely.
The roller shutters in the bathrooms open at a set time and close at sunset.
For the roller shutters on the upper floor, I programmed them for the summer months with heat protection in mind so that they open and close following the sun’s movement. That means when the sun is directly south, the shutters on the south side are closed, while those on the west and east sides are open. As the sun moves around the house in the afternoon, the south shutters open and the west shutters close, until they open again after sunset.
I consider roller shutters essential for heat protection—and sometimes for privacy reasons too. The external blinds in the living areas allow clear views outside while keeping curious glances and heat out at the same time.
In the adjacent new development, I regretfully observe that some homeowners have opted out of external blinds. The result is either completely closed shutters or interior pleated blinds that remain closed all day long.

xMisterDx schrieb:

Apparently not, otherwise the sister would regret it.

Why do people even doubt something like that?

It’s called experience. Even now in winter, the sunny days heat my KFW 55 house up to 24 degrees Celsius (75°F), the heating is off, only hot water is running. In summer, you quickly get 30 degrees Celsius (86°F) or more inside if you don’t do anything against the sun. Ventilation won’t help @motorradsilke, once the thermal mass has warmed up. Passive houses in summer without (passive) sun protection… good night!

But apparently, in this example, there is passive sun shading:

kati1337 schrieb:

I don’t remember all the details, but I think they have particularly large roof overhangs so the sun doesn’t come in so much.
Their biggest problem is rather in winter when they heat and have guests. You really sweat when suddenly 8 instead of 2 people are in the living room, because the heat just can’t go anywhere. =)