first draft
A NEWSLETTER FOR BUILDING DESIGN PROFESSIONALS FROM BORAL TIMBER
engineered flooring
With engineered products entering the
cross-ply configuration, making it extremely
Boral Timber offers the longest length boards
timber flooring market, it is important that
stable and limiting board movement and the
on the market at up to 2.4m.
building designers are familiar with how
need for acclimatisation.
they are made and installed in order to
The 166mm two strip board has a different
It can be laid over any level, dry, structurally
structure to the 80mm and 133mm one strip
sound subfloor, such as a concrete slab,
products. Both are 15mm in thickness with the
Silkwood engineered flooring is
particleboard or plywood, tiles or old timber
166mm two strip board consisting of 4mm of
manufactured with a multi-layered floors.
Australian hardwood timber, 9mm of plantation
specify them correctly.
Silkwood must not be laid over a concrete slab
From the Editor
As Australia gets hotter and drier, building
designers are increasingly faced with the
need to create structures that are designed
that has a moisture content greater than 5.5%.
The sub-floor should be flat (within +/- 3mm
over a 3mm radius), clean and dry. Plywood or
particleboard and existing timber flooring must
be sanded level prior to installation. Plywood
pine and 2mm of plywood veneer, while the
80mm and 133mm one strip are made up
of 4mm of Australian hardwood timber and
five layers of ply. The plantation core and
the plywood core are of equal durability and
strength.
or particleboard should be a minimum of 5 ply
The product range uses a tongue and groove
or 12mm.
system and all products are end matched.
Silkwood is supplied pre-finished with six
Boral Timber sources its hardwood timber from
coats of mid gloss UV cured acrylic coating
AFS (Australian Forestry Standard) certified
guaranteed for 25 years under domestic
forests. This is the only timber certification
There are a number of hardwood timber
conditions. A pre-finished product means the
scheme that meets Australian Standards
species that are classified as naturally fire
new floor can be walked on within hours of
(AS4708–2007).
resistant. These are generally the high-
installation, making it ideal for renovations
density timber species such as Blackbutt,
where minimum downtime is required. The
Spotted Gum, Ironbark and Turpentine. In
4mm hardwood wear layer of the boards can
order to meet AS 3959 requirements, timber
be sanded and recoated up to three times.
must be at least 18mm thick.
Silkwood is available in eleven Australian
Enjoy the warmer weather!
hardwood species and over 60 product
for bushfire-prone areas. However, it is
important to note that this does not mean
that timber cannot be used when designing
structures for bushfire-prone areas.
Editor, First Draft
Email: [email protected]
combinations. It is offered in both Australiana
Grade, which showcases the subtle features
of our native Australian hardwoods and
Natural Grade, which has a rustic, distressed
appearance with natural timber characteristics
Did you know?
Chips of beech wood are used in
the brewing of Budweiser beer to
impart a taste similar to that of
wood-barrel aging.
as well as milling imperfections.
Each is offered in 1 strip 133mm, 1 strip 80mm
and 2 strip 166mm, with the exception of
Tasmanian Oak, available only in 1 strip 133mm
and 2 strip 166mm, and Cypress, available only
in 1 strip 80mm and 2 strip 166mm. Blackbutt, Australiana grade
> FIRST DRAFT > ISSUE 17 > 2007
MALCOLM JOHNSTON
TECHNICAL FEATURE >
feature
floor
café lago
PROJECT SUMMARY
Architect
Terence R Feltus Architect, Adelaide
p 08 8362 5860
Flooring supply and installation
Contract Carpets, Adelaide
p 08 8352 4777
“Silkwood was an extremely practical
choice as it is prefinished, meaning
we were able to lay the floor within
hours, reducing our downtime.”
Café Lago is set at the western end of
the Torrens Lake in Adelaide. During the
warmer months diners sit on the open
deck overlooking the river while the
interior is warm and inviting, featuring
curved walls and dramatic timber
accents.
The brief to architect Terence Feltus was
to replace the timber floor at entry level in
the restaurant. This included introducing a
feature shape in the floor to visually draw
people from the entry and through to the
restaurant.
“We wanted to create a great first
impression,” says Ray Mauger from Café
Lago. “We now get lots of comments from
customers on how striking the floor looks.”
Not only did the owners want a beautiful
floor, they also needed it to stand the test of
time. “We have been in business for over
eight years, and plan to stay around for many
more,” says Ray.
“Karri, Jarrah and Blackbutt were
specified for variety of colour but without
compromising on the strength and reliability
of the floor,” explains Mimi Kos from Terence
Feltus.
Silkwood 80mm engineered timber flooring
was glued rather than floated to create
a more solid feel and to improve sound
qualities, and because of the shorter length
of timber required to achieve the feature
shape.
“Silkwood was an extremely practical choice
as it is prefinished, meaning we were able
to lay the floor within hours, reducing our
downtime. Even though we added an extra
coat of polyurethane for a glossier finish,
the restaurant was still able to open almost
straight away for business,” says floor layer
Kerry Bennett from Contract Carpets.
The floor was not laid over a standard
subfloor. Where the floor sits above the
Torrens River, the subfloor is particleboard,
while the area containing the inset has a
concrete subfloor.
“When we ripped up the old floor, the
subfloor sustained a lot of damage, so we
had to do a lot of extra levelling,” explains
Kerry. “The other hurdle we faced was
that in order to achieve the pattern it wasn’t
Jarrah was used as the base, with the inset
possible to end join the boards, so we had to
laid from Karri and Blackbutt.
glue the floor and keep it level with weights.
SPECIES PROFILE >
Silkwood engineered flooring is available in eleven beautiful hardwood
timber species. Here we look at the aesthetic and technical specifications
of the rich colours in the Royal Range.
1.
1. Brushbox (lophostemon confertus) is sought after for its unique
properties and aesthetic qualities. It has a fine and even texture with a
beautiful, rich colour. It can vary in colour from a pinkish grey to a rich,
reddish brown, with a distinctively paler sapwood. Janka (hardness) 9.5
2.Jarrah (eucalyptus marginata) is one of the few commercial species
2.
from Western Australia. Jarrah is renowned for its density, natural
resistance to insect attack and beautiful rich colour which deepens over
time into a soft burgundy. Jarrah’s beautiful colouring and exceptional
hardness are a perfect combination for commercial and residential
flooring. Janka (hardness) 8.5.
3.
timber species colour selector
give your clients
3.Karri (eucalyptus diversicolor) is a lively red species with overtones from
pale pink to rich reddish brown. Karri’s high density and hard wearing
qualities make it highly sought after by architects. Janka (hardness) 9.0.
4.Red Mahogany (eucalyptus resinifera) is an extremely dense timber with
stunning deep, dark red colouring. It has become a prestigious timber
4.
species due to its density and rare colouring. Janka (hardness) 12.0.
5.Tallowwood (eucalyptus microcorys) is a durable hardwood species
with unique colour and grain structure. The colour varies from yellowish
brown with a tinge of olive green to distinctively paler shades. The grain
is even and often interlocked. Janka (hardness) 8.6.
5.
Jarrah - Silkwood engineered hardwood floor, Australiana grade.
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