Built to Last: How the WHI Mark Can Help You
The Warnock Hersey Mark is North America’s most recognized product safety and performance mark for building products. Today, the mark appears on more than 4,000 building and construction products, from hearth products and fenestration materials to hardware, manufactured wood, plumbing, roofing, and various other products such as pools and spas. Please note, the WHI mark is a certification mark issued by Intertek. The WHI mark demonstrates product compliance to safety and/or performance standards. Intertek does not manufacture products of any kind.
Building and construction materials bearing the WHI Mark indicate to your customers and end-users product compliance to relevant building codes, association criteria, and product safety and performance standards. The mark also signifies that the product’s manufacturing site(s) undergo periodic follow-up inspections to ensure ongoing compliance of the originally certified product. In short, a field inspection consists of line sampling and inspection to ensure that the product continues to be produced in the same manner as the product which was originally certified.
Contact us today for more information on the Warnock Hersey mark or to speak with an expert about building products certification.
The History of Warnock Hersey
In 1888, Milton Hersey established a small chemical testing laboratory, pioneering the idea of independent testing laboratories in Canada. Separately, in 1927 Charles Warnock founded the Chas Warnock Company for the inspection of steel products. Between 1954 and 1965, Milton Hersey’s lab, the Chas Warnock Company, the GS Eldrige Assay Company, and Macdonald & Macdonald (a lumber grading company) merged to form the Warnock Hersey Company. This union created Canada’s most diverse testing conglomerates.
In the early 1970s Warnock Hersey entered the U.S. market with a testing laboratory in Pittsburgh, California, making it one of the first testing labs to handle customer needs across country borders. Years later, in 1992 the company was flourishing, but its goal of providing global market access remained out of reach. That year Warnock Hersey sought an international partner in ETL SEMKO, which, in turn, was later acquired by Intertek. The union gave Warnock Hersey its international reach and Intertek a depth of building materials expertise and Canadian market clout.
