Integrated Energy is a Passivhaus and low energy technical design consultancy. We design renewables based heating and ventilation systems for high end Ultra low energy residences.

1. Dec 2013
Green Build Week
Aughey O'Flaherty Architects
The Passivhaus Approach
to Part L Compliance

3. Where
Does
the Energy
Go?

9. a tale of two standards
V

10. Detached house compliance

11. Plans
16 Air tight and vapour tight

12. RIA Dwelling ID
Proposed House
Minimum Compliance
House type
2 storey
Detached
Vent
MHRV
Hole in wall vents
Wall U Value
0.15
0.14
Floor U-Value
0.12
0.15
Roof U-Value
0.135
0.12
Airtightness
0.64 ach’s
5m³/hr/m²
Window U-Value
0.9 W/m2K
1.1 W/m²K
Y Value
0.01 W/M2K
0.06 W/m²K
Heat + power
LPG Gas boiler
Gas boiler
Renewables
7m2 vac tubes
6.5m² SHW
Heat demand
38kWh/m2 A2
55kWh/m2 A3
EPC
0.3
0.4
DoHELG 2010 regulatory Impact Analysis

13. 40%
20%
2005
Regs
2008
Regs
2011
Regs
Passiv
haus
Space heat demand
Permitted Design Energy

14. Full of oil
7.5kWh
2005
Regs
2008
Regs
2011
Regs
Passiv
haus
Space heat demand
A wine bottle

15. 2005
Regs
2008
Regs
2011
Regs
Passiv
haus
Space heat demand
Space and hot water heating
oil per m2

19. Passivhaus
solutions
to achieve
Part L 2011 compliance

20. 02 Detail

21. 03 Air Barrier

22. 02 Analysis

23. Work out
Details
before
Tender to get
Control of
budget and
Programme
26 Quality + Workmanship

27. 25 Boundary with existing build

31. 18 paper is cheap

34. Renovate
and
Extend

36. Overview
24 Fabric Design

40. Plans
20 EnerPHit Refurb

41. Apartments

43. Mechanical

47. Passivhaus

48. Plans
10 Services Coordination

49. Supply
Extract
External
32 Services Coordination and Fire Protection

50. Overview
33 M+E

51. Overview
Thank You