Code for sustainable homes: case studies volume 2 - Gov.uk

CONSTRUCTION AND
BUILD SYSTEM
The new build units (with the exception of the
two bungalows) have been constructed on-site
using traditional masonry build. The external
walls were constructed as a cavity wall with
an external brickwork skin, a fully filled cavity
containing mineral wool insulation, and an
internal skin of ultra lightweight aggregate
blocks, finished using standard plasterboard
on dabs. In some places external rendering
and cedar cladding has been used.
The floors were constructed using concrete slab
over a layer of urethane insulation. The roof
was constructed using pitched timber truss and
concrete interlocking tiles. The mineral wool
insulation used in the roof was laid in two
layers in order to achieve the required U-value.
SUSTAINABILITY
FEATURES
Sustainability approaches and features
incorporated into the scheme include high levels
of insulation, the use of environmentally benign
materials, low energy lighting, the
use of water butts to collect rainwater for the
garden, low water use sanitary ware and the
design of all homes to Lifetime Homes. A heat
recovery exhaust air heating and hot water
system was also installed. A home user guide
is to be provided to residents alongside training
on how to operate the heat recovery exhaust air
heating and hot water system.
Seventeen of the socially rented homes will
also feature photovoltaic panels, which were
installed by Shoreline Housing Partnership in
order to tackle fuel poverty issues for its tenants.
Photovoltaic panels on one of the socially
rented homes
12 | CODE FOR SUSTAINABLE HOMES | CASE STUDY 5