Did you know?
Waterproofing for concrete and masonry has recently made its appearance
on the market. Its combined properties of impermeability to water and
permeability to gases have opened up major possibilities that respond
to real needs in the building industry. Unfortunately, a lack of information
and a certain inexperience on the part of practitioners have resulted
in incorrect or badly adapted uses, that have discredited waterproofing
treatments as a whole.
Over the past few years, renovation and maintenance work on exterior walls
have created an increasing demand for waterproofing treatments, and as a
result, more numerous products are available on the market.
Although this may have been a favourable development for manufacturers,
architects, have remained technically uninformed, and their
confusion has only been increased by the large number of products available.
This prompted the National Research Council of Canada (CNRC) to establish performance criteria and quality standars in order for the product to be approved by the Institut for Research in Construction (IRC) and listed in the registry of Product Evaluation of the Canadian Construction Materials Centre (CCMC), Thermal and Moisture Protection, section 07191
With the advent of the first waterproofing treatment to meet the standards
of the CCMC section 70191, the role of waterproofing has gone beyond merely
protecting against water to also including protection against gases (atmospheric
pollution) and graffiti.
This new masterformat clearly defines the new criteria that a waterproofing
treatment must meet to be
By meeting all of these criteria, Graftex‚ waterproofing CCMC number
13023-R, became, in March 2002, the first waterproofing treatment and
first graffiti-protection treatment approved by the NRCC, and was entered
into the Registry of Product Evaluation of the IRC and approved by the
CHMC (Canada Housing and Mortgage Corporation).