ᐅ Aerated concrete solid roof designed as a pyramid roof on an urban villa
Created on: 21 Dec 2020 09:52
A
Amel_NRW
Hello everyone,
I have been following this forum for a while, and now we are finally starting our house construction. Currently, we are planning a townhouse (external walls made of 42.5cm (17 inches) aerated concrete, interior walls of sand-lime brick) with two full floors on a plot located in the second row, about 100m (328 feet) straight line from the pedestrian zone.
Townhouses are usually built with a 22-degree roof pitch and a hipped roof. Our idea for the roof is a 35-degree pyramid roof with a solid aerated concrete roof structure and 2 to 3 roof windows. Why this choice?
Firstly, we want to keep the option open to expand the attic in about a year to add an office and another child’s room, which is why we prefer a 35-degree pitch instead of 22 degrees. Secondly, due to the dense development around us, sound insulation is an important factor, and a photovoltaic system is firmly planned. According to a friend who is an architect, when the roof type can be freely chosen, a solid roof is preferable for both soundproofing and radiation protection reasons (especially regarding the photovoltaic system).
According to Ytong, any roof shape can be constructed as a solid roof. So far, in my research, I have mostly only found solid roofs as gable roofs. Does anyone here have experience with a solid pyramid roof and could possibly share photos? And does this approach make sense as we have imagined it?
If it matters, we are still undecided about the upper floor ceiling, whether to go with a wooden beam ceiling or a concrete ceiling.
Greetings from the Ruhr area
I have been following this forum for a while, and now we are finally starting our house construction. Currently, we are planning a townhouse (external walls made of 42.5cm (17 inches) aerated concrete, interior walls of sand-lime brick) with two full floors on a plot located in the second row, about 100m (328 feet) straight line from the pedestrian zone.
Townhouses are usually built with a 22-degree roof pitch and a hipped roof. Our idea for the roof is a 35-degree pyramid roof with a solid aerated concrete roof structure and 2 to 3 roof windows. Why this choice?
Firstly, we want to keep the option open to expand the attic in about a year to add an office and another child’s room, which is why we prefer a 35-degree pitch instead of 22 degrees. Secondly, due to the dense development around us, sound insulation is an important factor, and a photovoltaic system is firmly planned. According to a friend who is an architect, when the roof type can be freely chosen, a solid roof is preferable for both soundproofing and radiation protection reasons (especially regarding the photovoltaic system).
According to Ytong, any roof shape can be constructed as a solid roof. So far, in my research, I have mostly only found solid roofs as gable roofs. Does anyone here have experience with a solid pyramid roof and could possibly share photos? And does this approach make sense as we have imagined it?
If it matters, we are still undecided about the upper floor ceiling, whether to go with a wooden beam ceiling or a concrete ceiling.
Greetings from the Ruhr area
Amel_NRW schrieb:
The appearance of a city villa with a gable roof is disappointing when the building has a square footprint of 10x10m (33x33 ft), and we have to stick to the 10x10m (33x33 ft) building envelope. The look of a 10x10m (33x33 ft) detached villa is also disappointing even with a hip roof, and even with a 35° roof pitch, you really need a clear idea of knee wall height to realistically expect usable attic space. Without a knee wall, I get about 11.76 sqm (126.6 sq ft) of room with a ceiling height of 230cm (7 ft 7 in), whereas with a gable roof it’s about 2.66 times that. Where would he even put the staircase? - show the entire design.
https://www.instagram.com/11antgmxde/
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Solid roof… I have never heard of that before.
You never stop learning.
If you plan to convert the attic, I would never build a hipped roof. With a gable roof, you at least get a vertical wall and usable window areas. With a hipped roof, every room ends up being awkward and impractical. The child who gets a room up there wouldn’t even have an escape route if the stairwell caught fire.
Ytong or aerated concrete... that’s actually the worst way to build for sound insulation, isn’t it?
Hipped roofs with a rather small usable roof triangle area for photovoltaic or solar thermal systems always look bad. And on three sides at that.
Honestly: where exactly does a townhouse with a hipped roof fit here?
This area is almost made for a gable roof… you just have to let go of the term “townhouse” – it doesn’t have the best reputation anyway, and it doesn’t even fit here.
You never stop learning.
Amel_NRW schrieb:
On one hand, we want to keep the option open to convert the attic to an office and an additional children’s room in a year, which is why we chose a 35-degree roof pitch instead of 22 degrees.
If you plan to convert the attic, I would never build a hipped roof. With a gable roof, you at least get a vertical wall and usable window areas. With a hipped roof, every room ends up being awkward and impractical. The child who gets a room up there wouldn’t even have an escape route if the stairwell caught fire.
Amel_NRW schrieb:
According to Ytong, any roof type can be constructed as a solid roof.
Ytong or aerated concrete... that’s actually the worst way to build for sound insulation, isn’t it?
Amel_NRW schrieb:
What spoke against it: The appearance of a townhouse with a gable roof is disappointing on a square 10x10 m (33x33 ft) footprint, and we have to stay within a 10x10 m (33x33 ft) building envelope.
Hipped roofs with a rather small usable roof triangle area for photovoltaic or solar thermal systems always look bad. And on three sides at that.
Amel_NRW schrieb:
Attached is the requested aerial photo showing the approximate layout of the building.
Honestly: where exactly does a townhouse with a hipped roof fit here?
This area is almost made for a gable roof… you just have to let go of the term “townhouse” – it doesn’t have the best reputation anyway, and it doesn’t even fit here.
11ant schrieb:
The appearance of a 10 x 10 m (33 x 33 ft) villa with a hip roof leaves much to be desired, and even with a 35° roof pitch, you need a clear concept for a knee wall to realistically consider usable attic space. Without a knee wall, I only get 11.76 sqm (127 sq ft) of room with a ceiling height of 230 cm (7 ft 7 in), whereas a gable roof offers about 2.66 times that amount. Where exactly does he plan to put the staircase? – please show the entire design.We visited a city villa with exactly these specifications, a 35-degree hip roof as a show home, and at my height of 1.84 m (6 ft), I felt comfortable upstairs in the attic.For better understanding, here are photos of the exterior, the attic interior, and the attic floor plan.
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WilderSueden22 Dec 2020 12:46First, you need to find cabinets that actually fit. There aren't many vertical walls, if I’m reading the plan correctly 😉
WilderSueden schrieb:
First, you have to find cabinets that actually fit. There aren’t many vertical walls if I’m reading the plan correctly 😉 Exactly. It will then stand halfway into the room, creating a niche, but the effect or ambiance of an empty room is lost and it feels more like "there’s no other way."
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