Barmouth Road

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General Information:

• Project name: Barmouth Road
• Project type: refurbishment
• Building type: Victorian terraced house
• Building Typology: residential
• Location: United Kingdom, England, London
• Year of construction: 2013
• Number of buildings: 1
• Number of floors: 2

 

Building Size:

• Treated floor area: 139 m²

 

Building Envelope:

• Exterior wall: – 230mm existing solid brick wall; 30mm ventilated cavity; 100mm phenolic insulation; 15mm OSB with airtightness tape; 12,5mm plasterboard; U=0.173 W/(m²K)
• Roof: 80mm phenolic insulation (between rafters); 50mm phenolic insulation (under rafters); 15mm OSB with airtightness tape; 12,5mm plasterboard; U-value=0,14 W/(m²K)
• Basement floor: 65mm concrete screed; 30mm PIR insulation; 100mm phenolic insulation; 150mm concrete slab; U-value=0,112 W/(m²K)
• Window: triple glazing; U=0.58 W/(m²K)

 

Building service systems:

• Ventilation: mechanical ventilation with heat recovery (MVHR).
• Heating: Condensing gas boiler with 300 l DHW cylinder. Under floor heating on lower floor and radiators on upper floor. Heat recovery from MVHR unit.

 

Building energy performance:

• Annual heating demand:  23 kWh/m²a
• Heating load: 14 W/m2
• Primary energy requirement: 114 kWh /m²a
• Air tightness: n₅₀ = 0.87/h
• CO2 emissions: yearly production of 20 kg CO2/m2

 Links for further information:

• http://www.passivhausprojekte.de/index.php?lang=en#d_4044
• http://passivhausbuildings.org.uk/viewproject.php?id=382#images