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ABOUT US

1992

Lesos was incorporated in 1992 as a consulting engineering firm, specialized in the field of façade technology and façade constructions of commercial buildings.

In 2005, the board decided to change strategy of the company and to evolve to a system supplier by using all accumulated know-how and practical façade expertise to develop curtain wall systems starting from the specific problems of the façade contractor from as well technical, entrepreneurial as financial nature.

2017

In 2017, after 12 years of development, Lesos has deposited 6 worldwide patents, 3 patents for a stick curtain wall system and 3 more patents for a modular façade system.

From the very beginning, the basic philosophy of the firm was the approach of all kinds of façade issues by the value methodology or value engineering (VE). VE is a systematic and structured approach for improving products, where VE helps achieve an optimum balance between function, performance, quality, safety and last but not least the cost.

AT THE END OF THE DAY, IT'S ALL ABOUT MONEY
Garry Kasparov

Eric Claeys, founder of Lesos :
It is obvious that an investor wants a good technical solution for his project. However this good technical solution becomes perfect when it will make the investor moreover significant savings.
In the past 25 years, Lesos has succeeded participating in hundreds of prestigious projects in more than 30 countries worldwide, such as
Louvre Museum

Louvre Museum

France - Paris
Swiss RE Tower

Swiss RE Tower

United Kingdom - London
Law Court

Law Court

Belgium - Antwerp
Atomium

Atomium

Belgium - Brussels
Charlemagne building

Charlemagne building - EU

Belgium - Brussels
Berlaymont building

Berlaymont building - HQ Europ. Comm.

Belgium - Brussels
Pulawska Financial Center

Pulawska Financial Center

Poland - Warschau
Akerselva

Akerselva

Norway - Oslo
Burj El Arab

Burj El Arab

UEA - Dubai
Nile City -  Conrad Hotel

Nile City - Conrad Hotel

Egypt - Caïro
Torre Agbar

Torre Agbar

Spain - Barcelona
Juishi Tower

Jiu Shi

China - Shangaï
Tour Midi

Tour Midi

Belgium - Brussels
7SENSES SQUARE X

7SENSES SQUARE X

Belgium - Bruges
ADMA OPCO

ADMA OPCO

Abu Dhabi
AEROPOLIS

AEROPOLIS

Belgium - Brussels
Airport

Airport

Beyrouth - Libanon
Airport

Airport

Belgium - Brussels
Ardovries

Ardovries

Belgium - Ardooie
Arts 44

Arts 44

Belgium - Brussels
ASLK

ASLK

Belgium - Gent
Bankunie

Bankunie

Belgium - Turnhout
Barco Graphics

Barco Graphics

Belgium - Gent
Batory

Batory

Poland - Warszawa
Boudewijn Project

Boudewijn Project

Belgium - Brussels
BRC

BRC

Poland - Warszawa
Brussels Parlement

Brussels Parlement

Belgium - Brussels
Chambre De Commerce

Chambre De Commerce

Luxembourg - Luxembourg
City Atrium

City Atrium

Belgium - Brussels
Corporate Village

Corporate Village

Belgium - Brussels
Douwe Egberts

Douwe Egberts

Belgium - Brussels
Dow Corning

Dow Corning

- Seneffe
Erasmonde

Erasmonde

Belgium - Brussels
Ericsson

Ericsson

Belgium - Brussels
Flanders Business Park

Flanders Business Park

Poland - Warszawa
Hotel Casselbergh

Hotel Casselbergh

Belgium - Brussels
IEK

IEK

Luxembourg - Luxembourg
Infrax

Infrax

Belgium - Torhout
Ippa

Ippa

Belgium - Antwerp
Jerolozimskie Park

Jerolozimskie Park

Poland - Warszawa
Kopernik

Kopernik

Poland - Warszawa
La Plaine

La Plaine

Belgium - Brussels
Losch

Losch

- Luxembourg
Maes Loi

Maes Loi

Belgium - Brussels
Media Park

Media Park

Tsjechië - Prague
Monbourg

Monbourg

Belgium - Brussels
Montoyer Science

Montoyer Science

Belgium - Brussels
MTV

MTV

Beyrouth - Libanon
Musee d'Art Moderne

Musee d'Art Moderne

- Luxembourg
SMAK

SMAK

Belgium - Gent
North Galaxy

North Galaxy

Belgium - Brussels
Nysdam

Nysdam

Belgium - Brussels
Ricoh

Ricoh

Belgium - Zaventem
Riviera

Riviera

Poland - Warszawa
Rolin

Rolin

Belgium - Brussels
SD Worx

SD Worx

Belgium - Antwerp
Smithkline Beecham

Smithkline Beecham

Belgium - Brussels
UCB

UCB

Belgium - Brussels
White Park

White Park

Belgium - Brussels

VALUE ENGINEERING

The basic philosophy for the developments was the approach by the value methodology or value engineering (VE). VE is a systematic and structured approach for improving products, where VE helps achieve an optimum balance between function, performance, quality, safety and last but not least the cost.

Any curtain wall product knows the following 4 main stakeholders:
1. the architect
2. the system supplier
3. the façade contractor
4. the investor or owner of the building project

The architect and the investor have a list of requirements, such as:
  • a nice product
  • value for money
  • a sustainable product
  • a minimum of product risk
  • in case of any technical problem, easy to solve and at the lowest cost
  • better performance than traditional systems
  • a reliable, performing product for the lowest price possible

the financial aspect of every facade system : optimum solution to be found for the system supplier as for the façade contractor.

Criteria for the system supplier
  • flexibility to put a margin
  • high net margin
  • clients’ happiness : to allow your client – the façade contractor – to realize a healthy profit margin

Criteria for the façade contractor
  • a lower material cost
  • reduced cost risk for the installation cost
  • lower cost of installation
  • quality of the end product depends as little as possible of the level and skillfulness of the installation crew
  • higher profit margin than traditional systems

FASSADA stick S56 and FASSADA modular M68
provide a unique answer to this complex challenge!

FASSADA STICK S56

A revolutionary vision on stick system curtain walls



Fassada Stick S56
  • stick system 56 mm
  • flexible connection transom - mullion
  • no external pressure plate
  • no silicone
  • no screws
  • no evacuation of infiltrated water by cascade system
  • no dozens of accessories
  • no scaffoldings as full installation and glazing from the inside of the building
  • minimum material, engineering, manufacturing and installation cost
  • ASAP formula : as simple as possible

for low, middle and high-rise buildings.
More performant, sustainable, easier, less risk, smarter,
…………..just better
…………..and more cost effective


FASSADE S56 is not an evolution
It creates a revolution!

For more information please contact ec@lesos.com

FASSADA MODULAR M68

A revolutionary vision on modular system curtain walls

Fassada Modular M68
  • total visible width 68 mm, including non-visible operable vents
  • same split male-female profiles for mullion as for transom
  • adding an operable vent rather by “removing” a part of the profile than “adding” a profile
  • continuous membrane on top of every row of modules to guarantee water perfect water tightness
  • no silicone
  • no dozens of accessories
  • in case of glass failure : replacement from the inside of the building
  • standard solution for double skin wall, as well active as passive wall
  • structural glazing or visible caps
  • lower engineering, material and manufacturing cost
  • ASAP formula : as simple as possible

And more performant, sustainable, easier, less risk, smarter,
…………..just better
…………..and more cost effective


FASSADE M68 is not an evolution
It creates a revolution!

For more information please contact ec@lesos.com

CONTACT US

LESOS ENGINEERING


Theo de Belderlaan 2
2240 Zandhoven
Belgium

Phone: 0032 3 385 88 64
Mail: ec@lesos.com