Hello everyone,
Our basement has a reinforced concrete ceiling, above which are the upper floor and the terrace. Since the terrace needs to be insulated, there is a height difference of about 25cm (10 inches) between the terrace and the adjacent living area (kitchen, dining room) on the ground floor. Steps at the doors leading to the terrace don’t look very good, so our builder is currently planning to fill this height difference with several layers of screed. Is this the most cost-effective option? For 225m² (2,423 sq ft) of surface area, the screed is currently estimated at 18,000 € (net); 115m² (1,238 sq ft) of that will have multiple layers. Do you maybe have cheaper alternatives? The house will be heated with underfloor heating. Thanks in advance.
Our basement has a reinforced concrete ceiling, above which are the upper floor and the terrace. Since the terrace needs to be insulated, there is a height difference of about 25cm (10 inches) between the terrace and the adjacent living area (kitchen, dining room) on the ground floor. Steps at the doors leading to the terrace don’t look very good, so our builder is currently planning to fill this height difference with several layers of screed. Is this the most cost-effective option? For 225m² (2,423 sq ft) of surface area, the screed is currently estimated at 18,000 € (net); 115m² (1,238 sq ft) of that will have multiple layers. Do you maybe have cheaper alternatives? The house will be heated with underfloor heating. Thanks in advance.
KlaRa schrieb:
The question is justified. However, the screed alone cannot account for such a high amount. And why an area of 220m² (2368 sq ft)?
Even for 220m² (2368 sq ft) of cement screed CT25-F4-S45, the cost should only be around 7,000 to 8,000 euros. The area of 220m² (2368 sq ft) comes from the basement and ground floor (both living and usable space, excluding the garage). The quote specifies calcium sulfate screed, 60mm (2.4 inches) thick, throughout the entire basement and ground floor as per the energy consultant’s requirements. The energy consultant’s calculations also include 6cm (2.4 inches) of loose fill insulation under the basement floor and 13cm (5.1 inches) of loose fill insulation on the upper floor. Is it possible that the loose fill insulation is included under the screed in the pricing, or does that not really make sense? How much does the loose fill insulation typically cost? (Basement 105m² (1130 sq ft); Ground floor 115m² (1238 sq ft))
Otherwise, the costs are probably really that high because multiple layers of screed are planned on the ground floor; however, this is not actually mentioned in the scope of work. I hope the reduced insulation thickness on the terrace will be acceptable, especially under current circumstances...
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