passivhaus and part l low energy building
DESCRIPTION
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.TRANSCRIPT
The Passivhaus Approachto Part L Compliance
Dec 2013Green Build Week
Aughey O'Flaherty Architects
Where
Does the Energy
Go?1
a tale of two standards
V
Detached house compliance
16 Air tight and vapour tight
Plans
DoHELG 2010 regulatory Impact Analysis
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
40%
20%
Permitted Design Energy
Space heat demand
2005 Regs
2008 Regs
2011 Regs
Passivhaus
A wine bottle
Space heat demand
2005 Regs
2008 Regs
2011 Regs
Passivhaus
7.5kWhFull of oil
Space and hot water heating oil per m2
Space heat demand
2005 Regs
2008 Regs
2011 Regs
Passivhaus
Passivhaus
solutionsto achieve
Part L 2011 compliance 2
02 Detail
03 Air Barrier
02 Analysis
26 Quality + Workmanship
Work outDetails before Tender to getControl of budget and Programme
25 Boundary with existing build
18 paper is cheap
Renovate
andExtend3
24 Fabric Design
Overview
20 EnerPHit Refurb
Plans
Apartments4
Mechanical5
Passivhaus
10 Services Coordination
Plans
32 Services Coordination and Fire Protection
Supply
Extract
External
33 M+E
Overview
Thank You
Overview