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Barauna structure deck
is an excellent specie at and around the water level. Since the ancient
Jesuit’ churches, barauna is used as the construction supporting posts under
the churches. After a couple of hundred years, the barauna supports are
still in excellent condition. Nowadays, in Bolivia barauna is most commonly
used as a railway sleeper, highly resistant to weather changes.
Therefore, That’s why ROQUE VALENTE SRL recommends barauna as great
economic option for use in and around water shores, such as boarding,
decking, bridges, posts and of course sleepers. For more information;
please ask! The USDA Forest Service
Laboratory says: “schinopsis performed almost as well as
teak”!!. Test is based on cracking, wrapping, erosion and swelling.
See here for the
complete research (15 pages).
Click
here for more on barauna
retaining walls
Massaranduba is better
known, barauna are yet unknown species, which definitely is a great
opportunity to buy due its accessible price (at least for the moment).
Also, barauna tend to crack to a great lesser extend than the better-known massaranduba.
That’s why it is called structure deck. The structure of the wood is
within its wood; great strength, it is its proper structure: structure
deck! The color might be the same apart from the typical
tigerwood-design, however, a red Mercedes is also not to be compared with a
red Mazda:
|
|
Janka
|
|
Massaranduba
|
14200
|
|
Aroeira
|
14170
|
|
Baraúna
|
21770!
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Other alternatives for Barauna structure deck would be
the Brazilian Itauba, Ipe, the African Azobe, Yellow Balau (bankirai) and
to some extent Bankirai, Basralocus and of course Angelim Vermelho. The latter
however, is due to its penetrate odor definitely not appropriate to be used
as a fine outdoor decking. Barauna structure deck is extremely hard (21770
Janka hardness at 12%) but that’s not the main reason for its resistance.
The natural sapwood resins are the main reason for its resistance against
downgrading. Looking at its value for money compared to its competitors,
Barauna definitely is your best option!
BARAUNA IN COMPARISON WITH OTHER SPECIES
|
|
|
Massar
anduba
|
ipe
|
barauna
|
cumaru
|
balau/
bankirai
|
merbau
|
|
Density 12%inkg/m³
|
900
|
950
|
1030
|
850
|
700
|
730
|
|
Density (kg/m3)AD
|
1360
|
1150
|
1280
|
1200
|
1150
|
1000
|
|
Radial shrinkage(R%)
|
6.3
|
3.3
|
5.3
|
5.0
|
4.6
|
3.2
|
|
Tangential shrinkage(T%)
|
9.4
|
5.6
|
10.3
|
7.6
|
10.4
|
5.4
|
|
Modulus of Elasticity at 12%(N/mm2)
|
24700
|
22000
|
16000
|
20800
|
15900
|
15300
|
|
Janka hardness at12%(kgf)
|
14200
|
16700
|
21770
|
15700
|
7300
|
6700
|
|
Durability class
|
II
|
I
|
I
|
I
|
I – II
|
I – II
|
|
irresistible super hard barauna structure
deck
|
