ᐅ Attic space in a gable roof with a 22-degree pitch

Created on: 13 Aug 2019 18:05
L
Listhom
Hello everyone,

we are currently planning a new build with dimensions of 10 x 12 meters (33 x 39 feet), two full floors without a basement, and a gable roof with a 22-degree pitch (without dormers, windows, etc.). Since we need storage space, our idea is to make the attic accessible via a hatch and use it as a storage area. We understand that the attic only provides limited usable space, but it would be sufficient for some storage needs. However, our architect advised against this, stating that the space is not usable.

We would reject an open roof structure due to insulation reasons. So, the question is more or less whether to make the attic accessible or to cover it with a suspended ceiling.

We would appreciate your feedback on whether you consider such use practical and what your experiences are.

Thank you!
S
Shiny86
8 Mar 2020 02:48
Is a roof window necessary?
We haven't planned for one yet.
truce8 Mar 2020 08:20
I would not do without windows. Sometimes you want to exchange the air. We have two small windows on the gable ends – it is cheaper and less prone to damage later on.
S
Shiny86
8 Mar 2020 09:26
What do you mean by damages?
We would only use the attic as storage space. We will have a hipped roof. Should it also be ventilated regularly?
I was not advised on this.
H
halmi
8 Mar 2020 13:09
We decided not to install a roof window.
H
hampshire
8 Mar 2020 14:20
If the roof is not properly insulated and airtight, there will be no ventilation problems. However, it will become very hot in summer and very cold in winter. Many materials are not affected by this.
truce8 Mar 2020 20:46
hampshire schrieb:

If the roof is not properly insulated and sealed, there are no ventilation problems. However, it will become very hot and very cold. Many things are unaffected by this.
When done correctly, the roof is sealed on the inside so that warm air cannot escape through the roof, preventing condensate or moisture buildup.

However, when the attic hatch is opened, air exchange inevitably occurs between the living space and the attic.
In winter, warm air rises and the relative humidity in the attic increases.

In our experience, without ventilation, the humidity levels become much higher and the air feels “uncomfortably” stuffy.
This encourages mold growth and similar damage.