London Council Chooses Warmshell And PH15
Energy-Efficient Timber Frame System For
Social Housing
Paul Samuel White Photography
The recently completed social
housing project at Akerman Road
for Lambeth Council, includes three
new-build Passivhaus certified terrace
houses, and six highly energy efficient
retrofit flats within a locally listed
building. The construction solutions
and details were carried out by the 15-
40 Architectural Collective.
Ensuring vapour open construction
was a priority. Highly insulated houses
must consider moisture management,
moisture damage being the greatest
risk factor to the building fabric.
The new-build terraces were
constructed using the PH15 Timber
Frame System which uniquely offers
a natural insulations solution to
Passivhaus projects, ensuring the
building can ‘breathe’ and that
moisture can escape externally
through the structure.
With the PH15 Timber Frame System,
products are used that are known
to enable water vapour to escape
externally – this includes Lime
Green’s Warmshell render system
applied directly to external wood fibre
insulating boards.
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Lime Green renders are highly
breathable and elastic, with low water
absorption, which means they will
provide a very durable finish and
importantly have far less embodied
energy than other render systems.
Lime Green Products offer approved
installers to ensure their lime based
products are applied correctly on site,
important given that this is a natural
product. Lime Green also provide
excellent technical support and
training. A wide variety of colours and
finishes are possible.