What exterior paint holds up best in Vancouver's rain? We're repainting our wood siding home in Coquitlam and want it to last?

For wood siding homes in Coquitlam and across Metro Vancouver, a 100 percent acrylic latex exterior paint is your best choice for durability in our wet climate. Acrylic latex outperforms oil-based paints in rainy environments because it remains flexible as wood expands and contracts with moisture changes, resisting cracking and peeling. Look for a paint with a high percentage of acrylic resin solids, ideally above 35 percent, as this directly correlates with durability and weather resistance. The sheen level matters too. Satin or semi-gloss finishes shed water more effectively than flat finishes, but flat paint hides surface imperfections better on older siding. Many Vancouver painters recommend satin as the best compromise for siding and semi-gloss for trim, fascia, and window frames where water runoff is concentrated. Equally important is the primer. For bare or heavily weathered wood, use a high-quality acrylic primer or, even better, an alkyd primer for superior penetration into the wood grain. The primer creates the foundation for paint adhesion, and skipping it is the most common reason paint fails prematurely in our climate. Application timing is critical in Metro Vancouver. The best painting window is typically mid-May through September when you can reasonably expect consecutive dry days with temperatures above 10 degrees Celsius. Paint applied when humidity is too high or temperatures too low will not cure properly and will fail much sooner. Even during summer, avoid painting surfaces that are in direct hot sun, as the paint dries too quickly on the surface before bonding to the substrate. As a next step, have your wood siding inspected for rot, especially around window frames and at the base where it meets the foundation, and replace any damaged boards before committing to a full repaint.

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