About
CLEB, a UL company, is a place of knowledge and ideation implanted in Montreal, Chicago, Quebec City, Ottawa, Truro and New York.

CLEB, a UL company, is a place of knowledge, research and conceptualization based in Montreal, Chicago, Quebec City, Ottawa, Truro and New York. It includes offices and a test laboratory offering a wide range of expertise including consulting, testing, and quality control services related to the building envelope. Deriving from the firm Patenaude Trempe Van Dalen Inc. and the laboratory Air-Ins Inc., CLEB showcases the synergy of both companies by offering a unique gateway to services related exclusively to the building envelope field.

Since spring 2014, as a response to answer the growing needs of its clients, the group has enlarged its laboratories and has set up a new head office located in Varennes, on Montreal’s South Shore. CLEB is:

 

  • A single gateway to laboratory or in-situ testing, and to quality control and technical assessment or investigative services dedicated exclusively to the building science field, thus forming the most important group of professionals in the Eastern Canada and the North-Eastern of the United States;
  • A dynamic team of more than eighty highly specialized people, distributed across five locations in Montreal, Quebec City, Ottawa, Truro and New York, are all dedicated to the application of collected knowledge and the advancement of research in the building envelope field and its impacts on human and built environments, which shape and influence our living conditions;
  • Unique laboratory installations, among the most important in Canada, accredited by the main organizations recognized in North America to inform and enable our industry partners to obtain the needed certification of their various building envelope systems and components;
  • Experience, with more than thirty years of history and evolution in providing services to architects and other construction professionals, manufacturers of systems and envelope components, general contractors, property managers and building owners;
  • Constant and recognized involvement of its professionals, who are actively involved in the scientific community, and many of whom are active members of numerous standard and code committees, decision-making bodies and other industry associations related to knowledge development and dessemination.
  • Research and development, in partnership with recognized organizations such as CMHC, NRC and the engineering and architectural departments of universities in the province of Quebec, as well as the presentation and publication of scientific papers during symposiums and international conferences;
  • A central hub of knowledge and know-how, promoting building excellence with the use of many recognized and sought-after training modules which its professionals deliver to the members of the construction industry, either to professional orders, public organizations or other groups dedicated to professional training;
  • A reference sought by leaders of the construction community regarding the process of design, evaluation, quality control, commissioning and maintenance of building envelopes and components.
History
Rooted in the values instilled by their founders

In the early 1970s, Armand Patenaude, engineer and professor at Montreal’s École Polytechnique, develops and carries out individual industrial tests on window products within the institution. In 1981, following a technology transfer agreement with École Polytechnique, Armand Patenaude leaves the university environment and founds the company Air-Ins Inc. in order to offer laboratory testing services to the whole window industry in the province of Quebec. In 1989, Armand Patenaude founds the company Patenaude-Trow Inc. with the mission of offering consulting and quality control services related to building envelope. Since then, both companies have continued diversifying the range of their services and as a result, have been expanded by opening offices in Quebec City, Ottawa, Truro and New York. Our group has now become one of the most important group of professionals in Eastern Canada and the North-Eastern United States with regards to laboratory and onsite testing, quality control, and technical expertise dedicated exclusively to building science.

1981 Foundation of Air-Ins Inc. by Armand Patenaude to offer laboratory performance test services on building envelopes in the Montreal region.
2001 Acquisition of Consultex JBK Inc. in order to expand consulting services – changing the company name to Patenaude-JBK Inc.
2005 Patenaude-JBK and Trempe & Associés unite their strengths – scompany name changes to Patenaude-Trempe Inc. with a new office in Quebec City.
2013 Acquisition of BVDA Engineering by Patenaude-Trempe and establishing a new office in Ottawa in order to serve the Ontario and Atlantic Canada markets – changing the company name to Patenaude Trempe Van Dalen Inc. (PTVD).
2014 Construction of a new head office and expansion of the testing laboratory in Varennes. Creation of the CLEB in order to showcase the complementary activities of sister companies Air-Ins and PTVD.
2015 Opening of a new office in Truro, Nova Scotia, to serve customers of the Atlantic provinces and the addition of a satellite office in New York.
2017 UL acquires CLEB to provide best in class building science services to the building envelope community.
Consulting Services
Testing Services
Mission
CLEB, a UL company, is a consulting firm of construction building envelope assessments and investigations professionals offering a wide range of services related to building envelopes including design assistance, onsite testing and quality control services. Our role as building envelope consultants consists of guiding and advising our clients on the integration of quality and durability principles related to critical elements affecting the building envelope.
CLEB, a UL company, is a place of knowledge, research and conceptualization based in Montreal, Chicago, Quebec City, Ottawa, Truro and New York. It includes offices and a test laboratory offering a wide range of expertise including consulting, testing, and quality control services related to the building envelope. Deriving from the firm Patenaude Trempe Van Dalen Inc. and the laboratory Air-Ins Inc., CLEB showcases the synergy of both companies by offering a unique gateway to services related exclusively to the building envelope field.

Our greatest strength remains the quality of our services, the integrity and professionalism of our staff and our network of loyal and trustworthy partners and collaborators. Our outreach is achieved through our involvement and our contribution to the scientific and technical community, which is the lifeblood of our industry.

Our mission is to remain the leader in the field of building sciences by maintaining a high level of excellence and growth, fostering long-term business relationships and establishing work conditions that are favorable to development, employment prospects and teamwork.

http://www.ul.com/aboutul/our-mission

Our clients
A network of loyal and trustworthy collaborators and partners
As a laboratory and an expert-consultant specialized in building envelope, our services are sought after by various members of the construction industry: architects and other construction professionals, manufacturers of building envelope systems and components, general contractors, property managers and building owners. As providers of litigation support services, we also include lawyers, prosecutors or courts amongst our clients.
The team
Work conditions favorable to learning and teamwork

Our company distinguishes itself by its staff’s integrity and professionalism and has managed to establish a prominent place among its customers. Our team is composed of engineers, architects, technologists and specialists recognized as being references and leaders in the field of building sciences in North America.

The continued involvement of our specialized staff with international associations governing standards and codes development, the preparation and delivery of training courses and research projects, as well as giving lectures at seminars at the North-American and international levels, allows us to keep abreast of the most recent industry information and technologies.