Slide 32
Slide 32 text
c bere:architects 2012
Low Cost Housing, BRE Watford
Orientation
1. South
Space Heating 13 kWh/(m ²a)
Frequency of overheating 6%
Deviation from North 180º
STRATEGY TO PRODUCE A
REPLICABLE, COST-EFFECTIVE
VERSION OF THE CHESNUT HOUSE
Many urban planners and developers
want complete flexibility to lay
standardised houses out around
squares or along streets, regardless of
solar orientation and here we show how
this is possible with our design:
The overall wall build-up has been
increased by 130mm improving the
BRE Watford - UK Passivhaus Competition 2012 Stage 2- BRE Innovation Park Network 4/8
c bere:architects 2012
1. South
Space Heating 13 kWh/(m ²a)
Frequency of overheating 6%
Deviation from North 180º
2. West
Space Heating 14 kWh/(m ²a)
Frequency of overheating 2%
Deviation from North 270º
STRATEGY TO PRODUCE A
REPLICABLE, COST-EFFECTIVE
VERSION OF THE CHESNUT HOUSE
Many urban planners and developers
want complete flexibility to lay
standardised houses out around
squares or along streets, regardless of
solar orientation and here we show how
this is possible with our design:
The overall wall build-up has been
increased by 130mm improving the
fabric U-value from 0.16 to 0.108 W/
(m²K).
The width of the rear windows and
french doors have been reduced to a
single casement matching the width of
the front elevation. This has an added
benefit of cost reduction for repeated
element detailing.
The summer ventilation strategy for each
orientation remains the same, with first
floor windows opened to tilt for 50% of
the time.
3. North
Space Heating 15kWh/(m ²a)
Frequency of overheating 0%
Deviation from North 0º
STRATEGY CONTINUES.
No overshadowing is assum
the orientations have been
exterior blinds.
This analysis shows that it i
to develop the Watford Che
into a straightforward soluti
equally well in any orientatio
Passivhaus criteria in a repl
cost-effective way.
Design works in any orientation for traditional street patterns