homes built with modern prefabricated roof
trusses – a web of thin timbers typically with
W-shaped struts held together by metal plates –
require more work as the roof structure needs to be
altered to strengthen it, but it is still possible to
convert, usually with the addition of steel or
aluminium beams.
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• Energy efficiency
A loft conversion will require the roof to be
insulated to meet the current building regulations
by placing insulation between and under the rafters,
or if the roof is being stripped or rebuilt, between
and over the rafters. Either way, a house with a loft
conversion is likely to be significantly more energy
efficient if the existing roof is not insulated, as 25%
of energy is lost through the roof.
A loft conversion is also an opportunity to
upgrade the existing boiler, heating and plumbing
to a more energy efficient system, such as a
condensing combi boiler, or condensing boiler and
mains pressure cylinder. This will also eliminate the
need for the header tanks in the attic for gravity fed
plumbing systems, freeing up more space. Other
obstacles like TV aerials, or even redundant
chimneystacks can be removed.
Converting the loft can also be a good time to
TRENTHAM
HOMES AND GARDENS
add renewables, such as solar panels.
• The design route
For a loft conversion you have three main
options:
1.You can commission a local architect to design
your conversion produce drawings and get planning
permission and building regulations approved.
These drawings will then be sent out to builders to
find the best value price. You will also need a
structural engineer to oversee some of the more
technical aspects of the job.
2. You can hire a design and build contractor
that specialises in loft conversions to be in charge of
the whole project. This might limit the architectural
choices for your conversion, however this type of
company will be able to deal with planning
permission, building regulations and engineering
on your behalf. In addition, this route will offer you
a fixed price package from the design stage, so you
know what to expect.
3. Finally, you can opt for a pre-fabricated loft
conversion which is made in a factory and then
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