Seattle’s damp climate needs more than “regular paint.” Here’s how to choose coatings, primers, and sheens that fight mildew and stay cleaner longer.
Mold-resistant paints use biocidal additives (mildewcides) and resin systems that shed moisture and dirt more effectively than budget coatings. They won’t solve a moisture problem by themselves—but paired with the right prep, primer, and ventilation, they dramatically slow mildew staining and make cleaning easier.
| Area | Primer Type | Finish & Sheen | Notes |
|---|---|---|---|
| Bathrooms | Bonding or stain-blocking | 100% acrylic, satin/semi-gloss | Use fan 20–30 min after showers. |
| Kitchens | Bonding primer | Washable acrylic, satin | Grease-prone—prefer scrubbable finishes. |
| Basements/Masonry | Masonry primer | Breathable acrylic, eggshell/satin | Address seepage or vapor first. |
| Exterior Siding (shaded) | Stain-blocking or bonding | 100% acrylic with mildewcide, satin | Annual rinse; trim vegetation back. |
| Trim/Doors | Bonding | Urethane-modified acrylic, semi-gloss | Tougher, cleans easier. |
Glossier films (satin → semi-gloss) resist moisture better and wipe clean easily, but show more surface defects. In most PNW bathrooms and kitchens, satin is the sweet spot. For exterior shaded siding, low-lustre/satin balances look and maintenance.
Pair this with: Best Exterior Paint for Seattle Weather and Best Temperature for Exterior Painting in WA.
We’ll match primers, finishes, and ventilation advice to your exact rooms and exposures.
No—paint slows growth on the film. Fix moisture/ventilation to prevent recurrence.
Usually a tougher acrylic with added mildewcides and higher scrub resistance—great for PNW homes.
Not recommended. It stains easier and can support mildew growth in high humidity.
A light rinse annually (or as needed) keeps spores from taking hold.