Lumber is one of the oldest building materials used by man and
laminated lumber has been used as a derived lumber product for more than 100
years.
Experiences in the area of glued lumber construction in recent
decades, the versatility to be found in the architectural and structural areas
of use, a very diverse product range, the quality assured by independent
inspection institutes, highly developed technical operating processes and
regular improvements in the glue used have, particularly in recent years,
resulted in a huge increase of laminated lumber utilisation.
Wherever
wide, open surfaces make strong visual, architectural and static demands, and
wherever strong claims are made with regard to elegance, appearance, people's
well-being and economy, laminated lumber is increasingly being used in
construction and renovation.
The use of modern technology (automatic, visual
inspection as well as machine version strength tests) and industrial production
have meant that the derived lumber product that is laminated lumber is now
available to an increasing number of users and is being used in a number of new
areas. A change has also taken place in people's minds and nowadays ecological
and natural building materials are at the very least an option.
As a run business with experience in the area of lumber, and
as a company that combines tradition and reliability with high-tech solutions,
our firm has given itself the task of processing sawn lumber in order to create
intelligent products. BS 11, BS 16 and BS 18 Glulam, as well as wall and ceiling
elements in the required Тол?ина x ^и?инаs, are some of the products in question.
All products are subject to the strict standards DIN 4074, DIN 1052-1/A1
and the European standard EN 386 as well as �NORM B 4100-2. The FMPA (Otto Graf
Institute) and Holzforschung Austria (an accredited institution) ensure that
these standards are observed. Also possessed the certified "�" symbol
("�-Zeichen") for the highest strength classes, BS 16 and BS 18.
A comparison of Glulam with
other building materials
Glulam
-
is a high-grade, aesthetic derived lumber product with a unified appearance
-
can be simply, easily and rapidly processed (cut, milled, drilled, sanded) with tools commonly used in lumber processing (no special tools are needed)
-
is kiln-dried (this means that there is very little swelling, contracting or cracking) so that the Тол?ина x ^и?инаs and "лина are as accurate as they can be
-
can be reused and recycled at no additional cost
- has a strong load-bearing capacity even though the lumber itself is not heavy (relation of lumber weight to load-bearing capacity)
- is heat and sound-absorbing
-
is lighter than steel although it has the same bearing capacity
- offers new ecological perspectives
Glulam
- has a strong surface quality
-
is stronger compared to traditional solid lumber (no restriction on cross section Тол?ина x ^и?инаs, no dispersion of strength characteristics)
- displays an exceptional burning behaviour (bearing capacity more durable compared with that for reinforced concrete)
- has strong visual characteristics due to use of graded sawn lumber (constant appearance)
- has cost benefits compared with traditional building materials (smaller Тол?ина x ^и?инаs required, is easy to handle)
- has exceptional insulating characteristics (lumber has the strongest bearing capacity of all insulating materials)
-
behaves favourably when it comes into contact with corrosive chemicals
- reacts favourably during earthquakes compared with reinforced concrete and tiles
Unlike concrete, Glulam
can absorb both tensile and compressive forces.
Use of Glulam diminues
wall and ceiling sections and optimates the relation between the building material sections and the usable space of a building.
Due to the short assembly times involved, Glulam makes
economical construction possible (usual drying times for ceiling, walls and plaster do not apply, prefabrication is possible).
| Benefits involved in using Glulam |
| Thanks to the most modern drying, sorting, gluing and pressing methods the following benefits compared with solid lumber and other building materials are now available: |
- Strength
- Stability of shape (virtually no cracks)
- Clearly defined materials characteristics
- Тол?ина x ^и?инаal stability
- Economical
|
|
|
BS 11 |
|
BS 16 |
|
BS 18 |
| Wood/Lumber species |
|
Spruce |
| Glulam quality class per DIN 1052/EC 5 |
|
BS11/GL 26 h
normal standard quality |
|
BS16/GL 32 h
quality to cope with greatest possible amount of stress, can only be manufactured with machine-sorted lamellas |
|
BS18/GL 36 c
quality to cope with the greatest possible amount of stress, can only be manufactured with machine -sorted lamellas |
| Manufacture |
|
G�teklasse II |
|
|
|
|
| Manufacture |
|
in accordance with �NORM B 4100-2 and DIN 1052-1/A1 and EN 386 |
| Finger jointing |
|
in accordance with EN 385, DIN 68140-1 |
| Wood/Lumber moisture |
|
|
|
8 - 12 % |
|
|
| Grading |
|
machine version in accordance with �NORM/DIN 4074 |
Grading class per
DIN 4074/EN 338 |
|
MS 10/C 24 |
|
MS 13/C 35 |
|
MS 17/C 40 |
| Lamella Thickness |
|
40 mm |
Bending admiss- ible [N/mm�] |
|
11 |
|
16 |
|
18 |
Tenson admiss- ible [N/mm�] |
|
8,5 |
|
11 |
|
13 |
Moduls of elasti- city [N/mm�]
(Young's Modulus) |
|
11.000 |
|
13.000 |
|
14.000 |
| Gluing |
|
Melamine formadehyde resin, light, non darkening joints, in acc. with DIN 68140, EN 302, EN 301 Type 1, weather proof in acc. with services class I and II |
| Surface Quality |
|
surfaced on four sides, chamferred, visual quality |
|
surfaced on four sides, chamferred, visual quality |
|
surfaced on four sides, chamferred, visual quality |
| Тол?ина x ^и?инаs in stock |
|
on request |
|
on request |
|
on request |
| Other Тол?ина x ^и?инаs |
|
Breath 6 - 26 cm, Height 12 - 128 cm |
|
Breath 10 - 26 cm, Height 12 - 128 cm |
|
Breath 10 - 26 cm, Height 12 - 128 cm |
| Lenght |
|
max. 18 m |
| Packaging |
|
in packets, foiled if required |
| Internal quality-control |
|
Delamination in acc. with EN 391, finger joint strenght in acc. with EN 408/DIN 68140-1 |
| Inspection report |
|
European Standard EN 386, glue license approval A in acc. with DIN 1052-1/A1 (10/96), �NORM B 4100-2 (12/97), machine sorting in acc. with �NORM DIN 4074, JAS |
|
European Standard EN 386, glue license approval A in acc. with DIN 1052-1/A1 (10/96), �NORM B 4100-2 (12/97), machine sorting in acc. with �NORM DIN 4074 �-certificate for BS16 and BS18, JAS |
|
European Standard EN 386, glue license approval A in acc. with DIN 1052-1/A 1 (12/97), maschine sorting in acc. with �NORM DIN 4074 �-certificate for BS16 and BS18, JAS |
| External monitoring |
|
FMPA (Stuttgart); Holzforschung Austria (Vienna); NTI (Oslo, Norway) |
|
Quality management |
 |
| Raw materials used: selected, mountain lumber taken from the best areas |
| Drying: kiln-dried |
| Self-monitoring is carried out in the company's own laboratory |
| External monitoring is carried out twice a year by Holzforschung Austria (an international accredited institution) and by FMPA in Stuttgart; JAS monitoring is carried out by NTI in Oslo, Norway |
| Each Glulam is quality-stamped with the firm's code, the particular year, internal production number, BSH grade and sorting type |
| Staff regularly attend detailed instructions and continuation courses |
This document in pdf-format. |
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