Archive for July, 2011

modern passivhaus

July 16, 2011

designed by bere:architects, the camden passivhaus is the first certified passivhaus in london.  it’s a fantastic example of high quality architectural design merged with ultra-energy efficiency.

treated floor area = 1098 ft²

annual heat requirement (calculated per PHPP) = 4.12 kBTU/ft²a

the wood structure including the larch exterior cladding was prefabricated in Austria.

main wall assembly
5/8″ gypboard
4″ wood fiber insulation
1/2″ osb air barrier
11″ rockwool cavity insulation
1/2″ fiberboard sheathing
larch rainscreen
R-value = 49

floor assembly
1 1/4″ wood flooring
4″ wood fiber insulation
5 1/2″ rockwool insulation
5 1/2″ insulation
3/4″ airspace
2 1/2″ screed
12″ concrete slab
r-value = 51

main roof assembly
5 1/2″ solid wood deck
11″ rigid insulation
4 3/4″ rockwool insulation
1″ drainage layer
3 1/2″ soil and plantings
r-value = 75

windows
bayer passivhaus windows
wood polyurethane composite
u-value = 0.134 btu/(hr ft² f)

bayer premium triple glazing
v-value = 0.106 btu/(hr ft² f)
shgc = .48

another great looking and high performing project from bere is “the muse”.

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