A0
Energy performance of the building
Energy class A0
According to the design-stage energy assessment, the 3 Háje Kľušov buildings are rated energy class A0 – a nearly zero-energy building.
| Indicator | Designed buildingkWh/(m²·a) | RequirementkWh/(m²·a) | Rating |
|---|---|---|---|
| Specific heat demand for heating (Qh,nd) | 17,21 | ≤ 26,70 | complies |
| Energy performance of the building (QEP) | 13,88 | ≤ 28,85 | complies |
| Energy demand for heating | 8,49 | ≤ 28 | class A |
| Energy demand for domestic hot water | 7,11 | ≤ 12 | class A |
| Total energy demand | 16,79 | ≤ 46 | class A |
| Global indicator – primary energy | 37,09 | ≤ 39 | class A0 |
Values in kWh per m² of floor area per year; the requirement is the normalised (maximum) value.
Class A0 requires both conditions at the same time
- 1The global indicator – primary energy – is at or below the upper limit of energy class A0: met.
- 2The building uses a renewable energy source in at least one place of consumption: met.
A0
Nearly zero-energy building
The calculated primary-energy indicator of the designed building falls into energy class A0 and meets the minimum energy-performance requirement under Slovak Act No. 555/2005 Coll.
How it is achieved
- External walls of 300 mm Termalica masonry with 150 mm thermal insulation (U = 0.14 W/m²K)
- Roof insulated with 300 mm EPS (U = 0.11 W/m²K)
- Ground floor slab with 140 mm insulation, ceilings above the exterior insulated on both sides
- Aluminium windows with insulating triple glazing (Ug = 0.6 W/m²K)
- Window ventilation complemented by local heat-recovery ventilation units in the living rooms
Heating and utilities
- Electric DEVI heating with smart control.
- The buildings will be connected to the public sewer system being built in Kľušov.
Source: design-stage energy assessment of the building for the building-permit documentation, Ing. Pavol Fedorčák, PhD., April 2026, prepared under Decree No. 324/2016 Coll. The energy certificate is issued at final building approval.
