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

Created on: 13 Aug 2019 18:05
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Listhom
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Listhom
13 Aug 2019 18:05
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!
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Zaba12
13 Aug 2019 18:10
We have a 22-degree cold roof ourselves. With 24cm (10 inches) of insulation included, it’s no longer possible to walk on it. You have to climb up and move by crawling, and only within a 3m (10 feet) wide central area.
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Escroda
13 Aug 2019 19:57
TAN(alpha) = Opposite side / Adjacent side <=>
Opposite side = Adjacent side * TAN(alpha) = 10/2 * TAN(22°) = 2.02m (6.6 feet) maximum height under the ridge
Depending on the roof structure and insulation, about 1.60m (5.2 feet) remains. Not much, but suitable for Christmas ornaments, sleds, and Easter baskets.

You will need to weigh the cost-benefit question yourself.
11ant13 Aug 2019 20:50
Listhom schrieb:

So the question is, more or less, whether to make the roof structure accessible or to suspend it.
What exactly do you mean by "suspend" in this context?
I would not skip having an access hatch for maintenance in such a cavity. Installing insulation on the ceiling of the top floor makes sense here, and I see no reason why you couldn’t store the box with Christmas ornaments there. Besides tongue-and-groove boards laid only in strips around the hatch and under the ridge, I wouldn’t install any other type of flooring. Is a small knee wall possible, and will the roof be a rafter or truss construction?
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Username_wahl
13 Aug 2019 21:07
We have a 25-degree roof pitch, a base area of 10 x 10 m (33 x 33 ft), and the insulated attic is huge; you can comfortably stand in the middle. The additional cost compared to an uninsulated attic was minimal.
tomtom7914 Aug 2019 06:28
Definitely do not give up the storage space. We have 24°C (75°F) at 10.2 x 9.8 meters (33.5 x 32.2 feet). Our roof is insulated, and we store a lot of seasonal decoration items and toys up there, saved for the next child.