Multiple Classifications of Contractors Can Waterproof Decks, But Few Have to Pass a Written Proficiency Test
D-12 Synthetic Products Classification Doesn’t Require a Proficiency Test
Manufacturer’s Accept D-12 License’s to Become Authorized Applicators
If you want to be a general contractor, plumber, electrician, earth mover, well driller, roofer.. CSLB requires you to have 3 years certifiable experience in that trade, plus take a legal exam on CSLB and state contracting laws AND pass a 3 hour test on your proficiency in that trade. You have to prove you know what your doing before they give you a license to do it. There’s a risk to consumers from people who don’t know what their doing. CSLB goes out of their way to run sting operations on unlicensed contractors, running press releases and posting hidden videos of their stings.
However, if you want to be a contractor that installs waterproofing for foundation walls and decks, decks like say the balcony in Berkeley, you don’t need a license that has a test that proves you have some knowledge; you can obtain a D-12 Synthetic Products license like this author has. A D-12 Synthetic products contractor does not have to pass a written test of proficiency in the subject of waterproofing! You just need to apply for it if your licensed in another trade and add it to your classifications and start waterproofing decks and foundations as most of the deck manufacturer’s accept the D-12 classification to sell and install their products.
How do I know this? Because I have/had a D12 license classification with which I used it to waterproof decks and balconies. But I’m not the only one, there are many contractors out there waterproofing decks using a D12, as well as using a C8 (concrete) or a C33 painting license improperly apparently, and CSLB seems to have a lassez faire attitude about this issue.
Will CSLB change the licensing requirements for becoming a deck waterproofing contractor?