ᐅ Attic: knee wall height / roof pitch / efficient planning of ceiling space
Created on: 28 Aug 2019 18:53
A
allstar83
Hello everyone,
We are currently deciding how to design our attic space. Since we already have all the necessary rooms on the ground floor, the attic will only include three rooms as future expansion space: storage, possible guest room/child’s room/office, and a hobby room.
The floor plan (14.5m * 10.5m) (48 ft * 34 ft) is large enough that we don’t mind losing some hard-to-access sloped roof square meters in the attic. A minimum roof pitch of 30 degrees and a gable roof are required.
My question is which option offers the best financial value in relation to well-usable space:
From what I found online, approximately: 0.5m more kneewall costs about €10,000, increasing the roof pitch by 1 degree costs about €800. I can’t estimate the cost for an insulated air gap — would the screed also need to be extended all the way to the roof edge?
I am leaning towards option 3 since the roof will be quite large anyway. Thanks in advance if anyone has some input.
We are currently deciding how to design our attic space. Since we already have all the necessary rooms on the ground floor, the attic will only include three rooms as future expansion space: storage, possible guest room/child’s room/office, and a hobby room.
The floor plan (14.5m * 10.5m) (48 ft * 34 ft) is large enough that we don’t mind losing some hard-to-access sloped roof square meters in the attic. A minimum roof pitch of 30 degrees and a gable roof are required.
My question is which option offers the best financial value in relation to well-usable space:
- Roof pitch: 30 degrees + 0.5m kneewall + 0m air gap (i.e., insulated setback from the roof edge)
- Roof pitch: 30 degrees + 1m kneewall + 0m air gap
- Roof pitch: 38 degrees + 0m kneewall + 0m air gap
- Roof pitch: 30 degrees + 0m kneewall + 1m high recessed, insulated "air gap" (ventilation space?)
From what I found online, approximately: 0.5m more kneewall costs about €10,000, increasing the roof pitch by 1 degree costs about €800. I can’t estimate the cost for an insulated air gap — would the screed also need to be extended all the way to the roof edge?
I am leaning towards option 3 since the roof will be quite large anyway. Thanks in advance if anyone has some input.
A
allstar8330 Aug 2019 05:54ypg schrieb:
Don’t build a bungalow!
We have a 28-degree roof pitch including attic space. The roof slope is very steep... it has nothing to do with a modest 22-degree roof pitch.It won’t and can’t be a bungalow style anymore.28 degrees with what knee wall height and exterior dimensions?
allstar83 schrieb:
It will no longer be a bungalow in terms of style and cannot be one.
A 28-degree roof with what knee wall height and exterior dimensions? We have a staggered shed roof with an open ceiling space in the lower half. There is no knee wall.
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