sustainability makes timber an excellent choice
for construction; wood itself can be sustainable
when sourced from reputable sources and
has the lowest CO2 cost of any commercially
available building material. For every cubic
meter of wood used, 0.8 tonnes of CO2 is saved
from the atmosphere.
don’t stop at construction.
The thermal efficiency of
timber means that a timber
building will remain
warmer throughout the
winter, reducing heating
costs, and will also stay
cooler during the summer
months. High levels of insulation can also be
incorporated to further enhance efficiency.
A perfect fit
The benefits of timber do not end in its use as
a building material. Changes to Document L of
the Building Regulations stipulate that all new
builds need to include some form of secondary
heating, so the role and popularity of wood-
50 BUILDING PRODUCTS | APRIL 2018
Specification made easy
To help specifiers choose the right
Schiedel products for their projects, the
company has launched a new online 3D
Building Information Modelling (BIM)
catalogue, providing what it says is an
‘interactive and accurate’ way of choosing
the best options from Schiedel’s range
of commercial and residential chimneys,
flues and associated equipment.
The new system is said to provide
comprehensive data on all components
and is free to use, allowing those involved
in the initial planning stages of a build
to confidently recommend Schiedel
based on the latest industry modelling.
It’s compatible with BIM and AEC CAD
formats, like Autodesk Revit, Nemetschek
Allpan and Grafisoft Archicad.
burning stoves has seen a dramatic increase over
the last few years. High quality wood emits no
more carbon when burned than it does when
left to naturally decay and, as long as woodland
is managed and trees replaced, it is a sustainable
and renewable heating fuel.
The latest generation of wood-burning stoves
are very efficient, offering more than just an
aesthetic focus. Designed to help keep rising
heating bills to a
minimum, some have
options to heat water
and run central heating,
with efficiencies to rival
a combi boiler. In open
plan, energy efficient
homes, wood burning
stoves of this type can
make a real contribution
to reducing fuel bills. When used alongside
other renewables, such as solar or heat pumps,
homeowners have flexibility in choosing their
To help specifiers, installers and end users
choose the best option for their build, all stoves
are now labelled with the rating system we’re
familiar with on white goods. Measuring efficiency
on a scale from A to G. Most modern burners
are expected to achieve levels of A and A+, with
pellet-burning stoves achieving A++. The average
efficiency of a modern stove is in excess of 70%
with the best stoves achieving 80% plus.
As wood is combustible, extra care must be
taken when installing stoves and fireplaces to
prevent fire risks and ensure efficiency. There are
a number of products that have been specially
developed to address these challenges.
If a building is made of timber, there’s a
potential fire risk when external heat is passed
from the flue to the adjacent wooden structure
and complications are possible when chimney
products have to pass through combustible walls
– either internally or externally.
The sustainability of the whole stove and
chimney system can be improved by using
highly insulated flues, which prevent heat loss.
Double modular flues should be used internally
and further efficiency can be enhanced using the
latest building materials.
According to the Savills/Scottish Woodland report:
“the structural timber frame industry holds the
greatest potential with all indications suggesting
that this will become the building method of
choice, due to speed of build, environmental
impact and life-time energy and cost performance.”
Thanks to a growing and exciting range of
products, engineered to meet the key challenges
of modern houses, timber framed dwellings and
timber-fired heating go hand-in-hand towards a
brighter and more sustainable future.
Wood is a
<<< Continued from page 49