10/29/2026
That black coating going on the wall might not look like much, but it's one of the most important steps in the whole project.
What you're seeing is the water-resistive barrier being applied before the lath and coats go on. This layer is what stands between your home's framing and moisture damage down the road. Skip it or rush it, and even a beautiful finish coat won't protect you. As a stucco contractor serving San Jose, Los Gatos, and Campbell, we treat waterproofing as the foundation of every stucco installation, not an afterthought.
Here's why this step matters for your home:
• It blocks moisture before it can cause dry rot repair bills later
• It extends the life of your stucco repair or new installation
• It pairs with proper flashing around window replacement openings
• It helps prevent the cracks that lead to stucco crack repair calls
With winter rain right around the corner, now is the time to make sure your exterior is sealed up tight. Reach out to Plastering Solutions Inc. for a free estimate and we'll make sure your home is protected from the inside out.