Living With Fog: How San Francisco’s Weather Affects Your Home
We all love the magic of San Francisco fog — known as Karl — but it’s not as kind to our homes. Fog carries moisture and salt, which can wear down paint, metal, windows, and stucco faster than in drier climates. The good news? With the right choices and a little routine maintenance, you can keep your home looking sharp for years.
Here’s a simple guide to keeping your exterior protected in SF’s coastal air.
Smarter Exterior Materials
Homes near the coast or on windy hilltops see the most wear. To make things last longer:
-
Paint: High-quality, marine-friendly exterior paint holds up best. Lighter colors show less fading and mildew.
-
Siding: Fiber cement and properly installed stucco do well in fog. Wood can work too — it just needs good ventilation and regular upkeep.
-
Metal: Salt likes to corrode metal. Stainless steel hardware and fasteners help prevent rust, especially near the ocean.
Windows That Stay Clear
Moisture can show up as condensation, failed seals, or foggy panes. To avoid that:
-
Choose windows with strong exterior finishes and good seals
-
Make sure sills and trim are well-caulked and sloped to drain
-
Keep an eye out for fogging between panes — it’s a sign the seal needs attention
A Simple Maintenance Rhythm
You don’t need to be an expert — just do a quick check once or twice a year:
-
Look for peeling paint, cracked caulk, rust, or spots where water collects
-
Gently rinse metal railings, lights, or hardware to remove salt
-
Clean gutters and downspouts before rainy season
-
Plan on repainting every 5–10 years depending on exposure
A little early maintenance saves a lot of headache — and money — later.
If You’re Preparing to Sell
Homes that look well-maintained photograph better, show better, and give buyers confidence. Before listing, consider:
-
Fresh exterior paint or touchups
-
New caulking around windows and doors
-
Cleaning and repairing gutters, railings, and visible metalwork
-
Power washing away salt and mildew
These small updates often make a big difference in curb appeal and inspection results.
If You’re Buying
Use fog and exposure as part of your evaluation. Houses near the beach or on hilltops usually need more regular maintenance. Ask:
-
When was the last exterior paint?
-
Are windows showing fogging or corrosion?
-
Any areas where water sits or drains poorly?
A home doesn’t need to be new to be durable — it just needs smart care.
