Supplying Timber Issue 9 0 - Autumn 2025 - Flipbook - Page 69
———— TIMBER KNOWLEDGE SHEET ————
HOW MUCH DO YOU KNOW
ABOUT TIMBER WINDOWS?
TDUK's Timber Knowledge Sheets are an essential resource
designed to introduce you to everything you need to know about
timber in construction. Here, we explore our Timber Windows
Knowledge Sheet.
Whether double, triple or
quadruple-glazed, the insulating
qualities of timber-framed
windows provide outstanding
energy e昀케ciency capabilities.
Durability
Timber windows are naturally
sturdy and designed to
withstand extreme weather
conditions.
For maximum durability,
the window should be fully
painted, stained and glazed in
a factory before being 昀椀tted.
It should meet UK standards
of performance and provide
weather tightness, energy
e昀케ciency and security.
The lifespan of timber windows
can vary, depending on the
quality of the materials used,
the manufacturer’s design, and
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69
how well they are maintained.
However, as a guide, the
average timber window can
last 30-35 years, with the paint
昀椀nish and glazing unit lasting
up to 10 years.
Energy e昀케ciency
Timber has natural insulatory
qualities, having a low thermal
conductivity. Not only is it a
sustainable choice, but it helps
minimise “cold-bridging”,
a condition that causes
condensation. Timber windows
therefore have strong thermal
properties, making them
AUTUMN 2025
TIMBER KNOWLEDGE
T
imber windows are
a popular selling
product for builders'
merchants. Popular
in residential properties
because of their stylish
appearance and natural
warm appeal, merchants
who better understand the
properties of timber windows
can help customers and
increase sales.
