San Francisco Climate Recommendations
On the coast of California, San Francisco’s climate is largely dictated by the cool currents of the Pacific Ocean and the San Francisco Bay. The effect is a generally mild climate with moderate temperature swings, defined by typically moist winters and dry summers. But the sharp topography of San Francisco has resulted in a multitude of different microclimates, with colder winters and warmer summers to be found in areas farther inland from the coast.

Low-E Protection
Keep warm in the winter by helping to reduce the heat loss from your home. Doors with panes of glass with Low-E may help keep your home insulated, blocking out the cold and helping keep the heat in.

Diverse Climate
Prepare for fluctuating temperatures with Pella® Impervia®. This strong fiberglass, for both windows and patio doors, is durable enough to withstand even the most extreme of temperature changes.

Salty Air
In coastal climates, the glass in your patio doors is more vulnerable to corrosion from the salt in the air. The closer your home is to the water, the more susceptible you are to the effects. Consider fiberglass to help maintain the integrity of the your doors.