Cross Laminated Timber

Wood that

makes the difference

The early days of Wigo started back in 1934

year, when a woodworking factory was

founded in Austria. Over the years, company

became as a symbol for quality of

manufacturing prefabricated panel houses

in Europe. Later becoming one of the first

manufacturers who started to use CLT

technology in the construction of wooden

houses

As demand increases, supply and production volumes need to increase as well, so in 2017 company moved to Latvia and now it’s known as Wigo Group. Combining many years of experience, traditions, quality, modern technologies and a team of professionals, company is marching on to be the best possible wooden house manufacturer in the market

Wigo production takes place in a

professional woodworking factory that

complies with all European Union standards.

Controlled working conditions ensure

monitoring in any production process, from

the use of the highest quality materials and

state of the art machinery to complete

project implementation on the spot.

Resulting in savings in both time and

financial resources, as well as our production

is more energy efficient and environmentally

friendly than traditional construction

Contents Wigo Group ................................................................................................................................................... 4

Factory ...................................................................................................................................................... 4

Main directions of Wigo Group: ............................................................................................................... 4

Wigo CLT ....................................................................................................................................................... 5

What it is: .................................................................................................................................................. 5

Advantages of CLT panels: ........................................................................................................................ 5

General Information ................................................................................................................................. 6

Standard sizes ........................................................................................................................................... 7

Layout of the CLT ...................................................................................................................................... 9

Thermal insulation .................................................................................................................................. 10

Fire resistance ......................................................................................................................................... 11

Sound properties .................................................................................................................................... 11

Wood Species .......................................................................................................................................... 12

Surface Qualities ..................................................................................................................................... 13

Manufacturing and processing of CLT panels ......................................................................................... 14

CLT production and processing line ........................................................................................................ 15

Wigo Innovo System® ................................................................................................................................. 16

Advantages .............................................................................................................................................. 16

Innovative solutions for house structures .............................................................................................. 17

Project development .................................................................................................................................. 19

1st Step: Initial information and quotation ............................................................................................. 19

2nd Step: Approval, production and delivery .......................................................................................... 20

Certificates .................................................................................................................................................. 21

Wigo Group Wigo's roots date back to the first half of the last century, when a small woodworking company

was founded in Austria. As time went on, demands were changing, and by the 1990s, Wigo was

one of the first to introduce the Cross Laminated Timber panel technology to the construction

world.

Currently the main production unit is in Latvia and under the name of Wigo Group, the company

is already internationally recognized and have partners in Europe and abroad

Factory 2017 founded 5000m2 premises 20’000m3 CLT per year Certified by FSC, CE, ETA Convenient infrastructure

➢ airport «Riga» 50km ➢ port «Skulte» 30km ➢ port «Riga» 50km

Austrian quality standards 25 employees On – going education Monitoring and design systems: 1C, CRM, SITE M, RENGA, BIM, SEMA High – end production equipment:

➢ HUNDEGGER, WEINIG, GREEKON, SIEGEL AG etc

Main directions of Wigo Group:

- Production of CLT ( cross laminated timber ) panels Full cycle of processing and monitoring of any part of CLT panel, enabling the production of top quality products

- Manufacturing of prefabricated wooden panel house elements Using timber frame, CLT or combined technologies such as walls, partitions, floor, roof communication and sewerage networks are produced in our factory and later installed as a ready construction on the object site

- Production of modular houses In a controlled work environment manufactured and ready to use modular houses, which after assembly are delivered to the object site, where they are habitable immediately after installation

- Woodworking Highest quality, diverse profile and structure wood materials for both interior and exterior construction work.

Wigo CLT Wigo Group CLT panels are manufactured in accordance with European

regulations and properly labeled.

What it is: ▪ A massive wood panel that consists of cross-laminated layers of wood boards or lamellas

▪ CLT panel that has at least three layers

▪ Maximum panel size is 2.95m x 10.5m and panel thickness is between 60mm to 260mm

▪ Load-bearing structure, non-compressible, airtight and insulating

▪ The surface can be finished and processed in countless ways

CLT solid wood technology is the most advanced wood construction technology

and the panels can be used in all load-bearing and visual structures of the house -

base floor, intermediate floor, roof, exterior walls, interior walls and terraces

Advantages of CLT panels: ▪ The elements are manufactured in controlled conditions and delivered to the construction site,

resulting in less need for on site storage and reducing on site building time

▪ The CLT-element forms both the finished interior surface and load bearing structure, reducing

finishing time significantly

▪ CLT have good sound and heat insulation properties

▪ Good fire resistance. The solid wood will char, but resists fire and maintains its structural bearing

capabilities in the case of fire

▪ Ecology. In the manufacturing of CLT-elements even the second grade wood can be utilized

resulting in efficient use of the log and smaller carbon footprint

▪ Sustainable and fast grown wood species are used in the manufacturing of the elements

Not only are we proud to offer CLT panels in a variety of sizes and qualities, but our

factory offers the customer a complete panel that includes complete customized

processing. Integrated communications networks and openings, insulation, trim

and even windows

General Information The factory and the CLT production line meet the highest quality standards as evidenced by

certificates of conformity from the European Organization for Technical Assessment, CE marking

and Forest Stewardship Council

Use of CLT CLT can be used in all load-bearing and visual structures of the house - base floor, intermediate floor, roof, exterior walls, interior walls, terraces and balconies

Surface quality Visible, industrial visible, non-visible

Maximum length 10.50m

Maximum width 2.95m

Maximum thickness 60 - 260mm

Count of layers 3, 4, 5

Wood species Spruce, Pine, Larch

Grade C24, C30 (for structural calculations)

Moisture content 12% +/- 2%

Bonding adhesive Prefere 4546 by Dynea, HB S029 Purbond by Loctite

Weight 500kg/m3 (for structural calculations)

Dimensional stability 0.02% change for every 1% change in panel moisture content (panel size)

Dimensional stability 0.24% change for every 1% change in panel moisture content (panel thickness) Reaction to fire D-s2, d0 in accordance with Commission Decision 2003/43/EC

Resistance to fire Charring rate of 0.65 mm/min in accordance with EN 1995-1-2

Water vapor resistance µ 20 to 50 in accordance with EN 12524

Thermal conductivity λ 0.13 W/(mK) in accordance with EN 12524

Specific heat capacity 1600 J/(kgK) in accordance with EN 12524

Air tightness Airtightness of a 3-layer CLT panel and of panel joints has been tested to

EN 12114 where it was found that the volumetric rates of flow were

outside the measurable range.

CLT - a synonym for sustainable, efficient and fast construction of the highest

quality in modern wood buildings

Standard sizes As mentioned, Wigo offers Cross Laminated Timber panels with a maximum size of 10.5 x 2.95

meters. Customer can choose from what type of wood the panel will be manufactured, what

surface what quality to apply and one of the most important aspects - panel thickness

CL direction - outer layer board direction perpendicular to panel length

Wigo CLT

panels Layers Type

Cross / Longitudinal

C L C L C

Wigo 60 3s CL 20 20 20

Wigo 80 3s CL 30 20 30

Wigo 90 3s CL 30 30 30

Wigo 100 3s CL 30 40 30

Wigo 120 3s CL 40 40 40

Wigo 80 4ss CL 20+20 20 20

Wigo 120 4ss CL 30+30 30 30

Wigo 160 4ss CL 40+40 40 40

Wigo 100 5s CL 20 20 20 20 20

Wigo 120 5s CL 20 30 20 30 20

Wigo 140 5s CL 40 20 20 20 40

Wigo 150 5s CL 30 30 30 30 30

Wigo 160 5s CL 40 20 40 20 40

Wigo 170 5s CL 40 25 40 25 40

Wigo 180 5s CL 40 30 40 30 40

Wigo 190 5s CL 40 35 40 35 40

Wigo 200 5s CL 40 40 40 40 40

LC direction - outer layer board direction parallel to panel length

Wigo CLT

panels Layers Type

Longitudinal / Cross

L C L C L

Wigo 60 3s LC 20 20 20

Wigo 80 3s LC 30 20 30

Wigo 90 3s LC 30 30 30

Wigo 100 3s LC 30 40 30

Wigo 120 3s LC 40 40 40

Wigo 80 4ss LC 20+20 20 20

Wigo 120 4ss LC 30+30 30 30

Wigo 160 4ss LC 40+40 40 40

Wigo 100 5s LC 20 20 20 20 20

Wigo 120 5s LC 20 30 20 30 20

Wigo 140 5s LC 40 20 20 20 40

Wigo 150 5s LC 30 30 30 30 30

Wigo 160 5s LC 40 20 40 20 40

Wigo 170 5s LC 40 25 40 25 40

Wigo 180 5s LC 40 30 40 30 40

Wigo 190 5s LC 40 35 40 35 40

Wigo 200 5s LC 40 40 40 40 40

Layout of the CLT CLT is a wood panel product made from gluing layers of solid-sawn wooden boards (lamellas)

together. Each layer of boards is usually oriented perpendicular to adjacent layers and glued on

the wide faces of each board, usually in a symmetric way so that the outer layers have the same

orientation. By gluing layers of wood at right angles, the panel is able to achieve better structural

rigidity in both directions.

Thermal insulation Heating your home uses more energy and money than any other system in your home - typically

making up about 42% of your utility bill. No matter what kind of heating system you have in your

house, you can save money and increase your comfort by combining appropriate construction

methods, quality materials, exterior windows and doors, it is possible to minimize costs for

energy and heating.

Buildings made of CLT have naturally high thermal insulation since they are built using massive

planks of wood boards glued together. Because of that, using it as a construction material helps

to save on future maintenance costs of the building. It is also important to mention that, with the

right planning, CLT allows to build a structure that is free of thermal bridges, radically minimizing

heat loss.

0

0.05

0.1

0.15

0.2

0.25

0.3

0.35

0.4

0.45

0.5

50 60 70 80 90 100 110 120 130 140 150 160 170 180 190 200 210 220 230 240 250

U - value of CLT 100mm + standard insulation

Insulation thickness, mm

Fire resistance Fire is a fright to any house, structure and nature in general. It can be caused by humans as well

as nature. One of the top priorities of house building is to make it fireproof, but also in the event

of a fire that the house will stay stable as long as possible.

Conventional construction, where metal or concrete is used as a base, requires additional improvements due to fire protection. The advantage of natural wood is that the burning of wood results in the production of char, which makes the burning more difficult. First, Wigo CLT panels are manufactured with a humidity factor of +/- 12%. If the CLT is exposed to fire, at about 100 degrees Celsius, this moisture will begin to vapor, making it harder to burn faster. Secondly, CLT is a solid wood construction consisting of several layers of together glued boards. After the right thickness of the panel is assembled, it is pressed in the manufacturing process to make it even harder and more durable. Combining many wooden layers of boards and pressing them together, we get a construction that has a high fire resistance and, in the event of fire, it will not burn with open flame, but more likely to char one sided.

Sound properties Soundproofing, especially in residential buildings, plays an important role in people's well-being and peace. Noise can be minimized by finding appropriate construction solutions. This should be done in a timely manner, during the design phase, which takes into account several factors: location of the house, type of the building, adjacent structures, traffic flow, infrastructure in general, and even climate. In general, there are two main types of sound: 1st airborn sounds - noises from surrounding factors, well as voices and music from inside or out 2nd structure born sounds – noises coming from residents when walking, scraping, moving Cross Laminated Timber is quite good in soundproofing, but it is recommended to combine the panel with insulation or other sound absorbing material to further reduce noise levels, specially in residential buildings.

Wood is indeed a durable and unique construction material, which is a great reason for CLT panels to be the best solution for modern home construction

Wood Species Wigo Group imports and uses only highest quality materials and they all have to be certified and

should meet our quality standard. Main raw material market is Northern Russia. Under harsh

environmental conditions, the tree grows slowly but is extremely durable.

To offer our customers the choice of panels that better suits their taste, we produce CLT panels

in a variety of qualities as well using different tree species

Siberian Spruce ( picea omorika )

Siberian Larch ( larix sibirica )

Siberian Pine ( pinus sibirica )

The top layer of the panel, whether it is an interior or exterior wall, can be left as it is, because

the visual appeal of it is given by the natural color and shape of the wood.

In addition to the exterior walls, we offer natural wood decorative boards, which will both protect

the panel itself and make it more personal by choosing board styles and layout. The same goes

for interior walls, the visual quality panel will be both aesthetically pleasing and smoothly

polished. Of course, the panel can be painted, varnished, overlaid with another layer of wood, if

the client wishes so.

Surface Qualities CLT panels are used for different purposes and therefore they could be visually different

Position Visual quality Industrial visual quality

Non-visual quality

Bonding occasional open joints up to max. 1 mm width permitted

occasional open joints up to max. 2 mm width permitted

occasional open joints up to max. 3 mm width

permitted

Blue stains not permitted slight discoloration permitted

permitted

Discolorations not permitted not permitted permitted

Resin pockets no clusters of pockets, max. 5 × 50 mm

max. 10 × 90 mm permitted

Dark ingrowths occasional occurrences permitted

occasional occurrences permitted

permitted

Dry cracks occasional surface cracks permitted

permitted permitted

Core — pith occasional, up to 40 cm long permitted

permitted permitted

Insect damage not permitted not permitted occasional small holes up to 2 mm permitted

Knots — sound permitted permitted permitted

Knots — black ∅ max. 1.5 cm ∅ max. 3 cm permitted

Knots — hole ∅ max. 1 cm ∅ max. 2 cm permitted

Rough edges not permitted not permitted max. 2 × 50 cm

Surface 100% sanded 100% sanded max. 10% of surface rough

Quality of surface finish occasional small faults permitted

occasional faults permitted occasional faults permitted

Quality of narrow side bonding and face ends occasional small faults permitted

occasional faults permitted occasional faults permitted

Chamfer on L panels yes yes no

Rework edge of cut with sandpaper yes no no

Machining — chainsaw not permitted permitted permitted

Lamella width ≤ 130 mm max. 230 mm max. 230 mm

Moisture content max. 11% max. 15% max. 15%

Timber species mixture not permitted not permitted with spruce, silver fir and pine are permitted

Aesthetic surface finish with bolts, pegs, etc. permitted permitted permitted

With C panels, the sanding direction is at right angles to the grain

permitted permitted permitted

Visual quality Visual Industrial quality Non-visual quality

Manufacturing and processing of CLT panels

1. The manufacturing process begins with loading the calibrated materials onto the

transport table.

2. The transport table has two floors for storing materials. 120m3 of wood can be stored on

the transport table. Packages of material are transported to the first transverse conveyor

at the transport table.

3. On the transverse conveyor, the boards are loaded with vacuum suction, lifting the top

row of boards and placing it on the conveyor. The boards are guided along the conveyor

to the first feed line, where the geometry of the board is measured using a laser. After

the measurements, the boards are guided along the feed line in an extender which,

according to the measurements, extends the boards to obtain the maximum straight raw

material.

4. After lengthening, the boards are fed through the feed rollers into the growing unit, which

plans the boards into the required lengths and cuts off the excess residue, using it for the

next board growing process.

5. After cultivation, the board is fed through a feed table and a vertical conveyor into a four-

sided planer, where the board is planed from all four sides to obtain the desired cross-

section of the board.

6. After planning, the boards are routed through a transverse conveyor to the second feed

line, which is conveyed to the extender. The extender lengthens the boards to the

required length.

7. After extender, the board is guided through the feed rollers where an adhesive applicator

is applied to the top of the board. After the adhesive is applied, the machine moves the

boards across the feed tables to the CLT panel spreading table.

8. The panel boards are arranged in a CNC conveyor, which grips the boards with vacuum

suction and places each piece in the appropriate position. Once all elements of the CLT

panel have been assembled, the panel is moved into the press. The panel is pressed with

pneumatic pressure and, during compression, the panel is heated by microwave,

accelerating the compression time.

9. For gluing CLT panels melamine glue (Dynea Prefere 4546) and hardener (Dynea Prefere

5093) are used. The board growing machine uses polyurethane glue (Loctite HB S029

Purbound).

10. The glued CLT panel is raised from the press and placed in the storage area, where it is

prepared for transportation.

11. If the panel requires further processing, the CLT panel is transported to the CNC unit

where it is subjected to the necessary processing operations.

12. After processing, the finished product is placed in a storage area where it is prepared for

transport.

CLT production and processing line

No.: Manufacturer Module Usage 1. OGI OGI CLT production line

1.a GRAULE ZS 200 N Automatic extender

1.b WEINIG GRECON CF 20 Boards growing equipment

1.c RANDEK MASKI SPL 700 Automatic extender

1.d SCM SUPERSET CLAS Four-sided planer

1.e RANDEK MASKIN - Automatic extender

1.f DWT - Adhesive applicator

1.g DWT - Adhesive and hardener station

1.h SIEGEL - CLT paneling table

1.i SIEGEL - Pneumatic microwave press

1.j RHOSS CLIMA - Press system cooler

2. SIEGEL - CNC processing table

4. WEINIG UNIMAT 22E Four-sided planer

5. WEINIG PROFIMAT 23 Four-sided planer

6. STENNER VNM 36 Vertical bandsaw

7. - - CLT panel finishing tables

9. HOLZHER SUPERCUT 1220 Slab material saw

10. GRAULE ZS 200 N Extender

11. PANHAMS 690-A Jigsaw

13. HUNDEGGER K2 CNC woodworking machine

14. HUNDEGGER SC1 CNC woodworking machine

16. HUNDEGGER HMD CNC four-sided planer

Wigo Innovo System® The Wigo Innovo System, as a wall-ceiling-roof system in the premium segment of prefabricated

house construction and has been a trend-setting and multiple award winner. Now it has been

perfected as a total ecological system. The result is a unique "outer wall combination: only made

of wood", which is unique in terms of sustainable quality and living comfort in prefabricated

house construction.

Patented and therefore unique in the field of timber house production

Advantages

No use of polyethylene Breathable

Solid wood construction High sound insulation

Exclusively of ecological materials Perfect insulation for lower energy costs

Natural and healthy room climate Heat storing, moisture regulating system

The main advantage of using Wigo Innovo System is that the panel is finished from

the start to finish at the factory and delivered fully ready to its intended location.

Insulation, all communication networks, outlets and openings are integrated to

minimize assembly time.

Innovative solutions for house structures The "solid wood wall" guarantees an extremely low energy consumption for heating and cooling,

has a moisture-regulating effect and convinces with a very good sound insulation. Probably the

most important advantage of the natural material wood is its heat storage capacity - in summer

as well as in winter. The solid wood in combination with the cellulose insulation ensures that the

heat stays outside on hot days and that little heat is given off when it is cold. Plus the

temperatures inside remain largely constant.

Compared to conventional timber frame construction systems, WIGO has expanded the wood

content up to ten times and completely dispenses with PE films or other plastics.

Exterior wall

Floor system

Roof system

Project development Any type of production process begins with a brief insight into the desired form of collaboration

and its outlines, which includes initial information about the project itself, design of it, preferably

budget costs and the goals to be achieved

1st Step: Initial information and quotation Construction processes are not always easy. In order to make it as transparent and simple as

possible for our clients, we initially offer a rough first estimate of the project.

It includes:

• Overall CLT use and costs

• Machinery usage

• Design costs

• Transportation costs

• Additional information about project

In order to get the first estimate as accurate as possible, Wigo professionals will need some insight into

your project. The more detailed the information provided, the simpler and quicker the estimate

preparation time will be

To prepare it, we will ask you for the following information:

• A brief description of the project. What type of building is intended, what is the construction plan

and where the structure will be located. By providing such information, it will make it much easier

to understand the project itself, to resolve issues that arise in any production processes and

overall questions, like local regulations, transport routes etc.

• Detailed description of the intended use of the CLT. Whether it’s private house, residential

building or even just CLT for any other construction process, it is necessary to know it before

beginning of production

• Technical information that includes everything about and around the project. Starting with the

construction area, dimensions and other parameters. Knowing this information will give us an

idea of the size of planned structure.

• All necessary architectural and engineering plans. Ideally, we would prefer to receive

implementation plans in 2D or 3D file format and which are as detailed as possible already during

the first phase

• Any other useful information which may directly or indirectly influence the implementation of the

project. Details are very important. When overlooked they can directly affect production process,

costs and the construction cycle as a whole

The main task in the first step is to get an idea of the project as a whole, which includes

information on estimated costs, deadlines and other construction-related issues

2nd Step: Approval, production and delivery The second step generally describes the further movement of the project from the start of

production to delivery.

It is important to note that each project can be different and the description

below is for informative reasons only

• After processing the request and the initial estimate, discussions are ongoing to resolve any

uncertainties. This may include in-depth questions about the details of the project, suggestions

from us and an overall production plan. This is a very important point as this part, because in this

process the agreement is sign and production can start.

• Works at the factory are started according to a developed production and task plan, which is also

available to the customer. As mentioned, the projects are almost always different, and so are the

production times, which are usually affected by: overall project size, complexity and material

selection. All necessary equipment and materials are thoroughly tested before each individual

element is manufactured.

• When all elements of the project have been made, a quality check is carried out to ensure that all

materials produced are in accordance with the customer's wishes and criteria. According to order,

Cross Laminated Timber panels are prepared for transportation. Regardless of whether they are

just plain panels or a ready-made house structure, they are properly packed so that they are not

damaged during transport: scratched, wrinkled or exposed to excess moisture and dirt

Certificates

... for excellent service

... about long term relationships

... with highest quality standards

AirGOL Ltd

Melioracijas street 8

Limbazi, Limbazu novads, LV – 1045

Latvia

www.wigo.info

office@wigo.info

+371 2 937-94-44