Hello,
I’m starting a new topic for this because it’s so important to us that it will affect our purchase decision.
I’ve already created two threads about the property:
https://www.hausbau-forum.de/threads/kosten-komplettes-haus-sanieren.30258/
https://www.hausbau-forum.de/threads/bitte-meinungen-zum-altbau-grundriss.30321/
Today I received the cost estimate. Although we requested underfloor heating, the engineer planned with radiators. When I asked about this, I learned the following: Currently, there is a floor construction/screed with a height of 6cm (2.4 inches). (This would be completely removed for underfloor heating, right?) According to him, underfloor heating requires 10cm (4 inches), and if we want a centralized mechanical ventilation system with heat recovery, it needs 15cm (6 inches). We don’t need impact sound insulation on the ground floor because there is only the basement below.
The building plan specifies a floor-to-ceiling height of 2.65m (8 ft 8 in). Adding the removed screed would make it 2.71m (8 ft 11 in). Subtracting 15cm (6 inches) for the underfloor heating and mechanical ventilation, plus about 2cm (1 inch) for the floor finish (we want tiles), I calculate about 2.54m (8 ft 4 in) remaining. Is that still an acceptable ceiling height? We currently have 2.56m (8 ft 5 in) plus a few millimeters. Would you notice a 2cm difference?
Is my calculation correct, or are there additional centimeters to consider?
We would have to somehow adjust the stair step height and raise the door openings, but that’s worth it to us (up to a certain amount).
Of course, I will ask the engineer again, but I would appreciate your opinions and advice!
Thanks 🙂
I’m starting a new topic for this because it’s so important to us that it will affect our purchase decision.
I’ve already created two threads about the property:
https://www.hausbau-forum.de/threads/kosten-komplettes-haus-sanieren.30258/
https://www.hausbau-forum.de/threads/bitte-meinungen-zum-altbau-grundriss.30321/
Today I received the cost estimate. Although we requested underfloor heating, the engineer planned with radiators. When I asked about this, I learned the following: Currently, there is a floor construction/screed with a height of 6cm (2.4 inches). (This would be completely removed for underfloor heating, right?) According to him, underfloor heating requires 10cm (4 inches), and if we want a centralized mechanical ventilation system with heat recovery, it needs 15cm (6 inches). We don’t need impact sound insulation on the ground floor because there is only the basement below.
The building plan specifies a floor-to-ceiling height of 2.65m (8 ft 8 in). Adding the removed screed would make it 2.71m (8 ft 11 in). Subtracting 15cm (6 inches) for the underfloor heating and mechanical ventilation, plus about 2cm (1 inch) for the floor finish (we want tiles), I calculate about 2.54m (8 ft 4 in) remaining. Is that still an acceptable ceiling height? We currently have 2.56m (8 ft 5 in) plus a few millimeters. Would you notice a 2cm difference?
Is my calculation correct, or are there additional centimeters to consider?
We would have to somehow adjust the stair step height and raise the door openings, but that’s worth it to us (up to a certain amount).
Of course, I will ask the engineer again, but I would appreciate your opinions and advice!
Thanks 🙂
Tassimat schrieb:
The current floor construction is 6cm (2.4 inches). According to the cross-sections, it is 6cm (2.4 inches) without further specification. The building permit/planning permission states a linoleum covering (but there is parquet now and I am not sure what else) 2cm (0.8 inches), screed subfloor 5cm (2 inches), sound insulation (or thermal insulation?) made of coconut fibers 2.5cm (1 inch).Mycraft schrieb:
The mechanical ventilation system can be concealed in the walls and the suspended ceiling, beneath the screed, underfloor heating, and the rest. In the upper floor, there is the attic above, and in the ground floor, there is the basement below. Would it be possible to install the ducts there and then route them through floor or ceiling openings into the rooms? However, these areas are not heated. Should the ducts be insulated? Is there a risk of thermal bridging?
Niloa schrieb:
According to the cross-sections, 6cm (2.4 inches) without further specification. The building permit / planning permission states linoleum flooring (but there is parquet now and I’m not sure what else) 2cm (0.8 inches), screed subfloor 5cm (2 inches), sound insulation (or thermal insulation?) coconut fibers 2.5cm (1 inch) You’re still deciding whether to buy the house, right? If the overall structure seems suitable and you move on to detailed planning (underfloor heating, flooring, etc.), I would definitely recommend having a thorough survey done. Measure new floor plans, check the floors in every room, and so on. This might cost a few thousand € but will give you a solid basis for further planning, so you don’t have to keep running back to the house to check things. Besides, the new plans should be drawn up with as accurate measurements as possible anyway ;-)
The engineer made us the following proposal (after I said it’s not an option without underfloor heating 😉): Schlüter-Bekotec, installation height 52mm (2 inches). Does anyone know this? It’s a pity he didn’t offer it right away. However, he can’t say anything about the costs.
Winniefred29 Mar 2019 17:56Why not measure inside the house first? Are you the only interested buyers for the house? I find it surprising that you have so much time to calmly plan and gather quotes.
As long as the structural engineering isn’t an issue, everything else should be manageable; others have already explained how to do that.
As long as the structural engineering isn’t an issue, everything else should be manageable; others have already explained how to do that.
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