Why This Matters
Perforated film achieves one-way privacy through a simple optical principle: the interior is darker than the exterior during daylight hours, so the pattern is visible from outside but transparent from inside.
Near Kezar Stadium in San Francisco, energy-efficient double-pane glass with low-e coatings can be enhanced further with retrofit film. This is especially problematic for home office installations, which glare control and uv protection are critical for home offices with screen-facing windows.
California's combination of high solar intensity, clear skies, and mild winters makes residential window film a year-round performance upgrade — not just a summer fix.
The Solution
Solar control film is the workhorse of residential window film. It blocks 40–70% of solar heat gain while maintaining clear views and natural light.
Solar control film addresses both heat gain and glare. It's the right choice when you want to reduce cooling costs AND improve comfort. Slightly more visible from outside than anti-reflective film.
Micro-perforated pattern provides one-way privacy and solar control without blocking the view.
Climate & Solar Performance
Properties near Kezar Stadium in Mission District, San Francisco experience low-e glass performance conditions that make window film particularly effective. Perforated Window Film is specifically engineered to address this solar exposure.
Effective against low-e glass performance
Rated for home office protection
Professional installers available in San Francisco
10–15 year manufacturer warranty
Installation Guide
A qualified installer will assess your window orientation and glass type before recommending a film grade. They'll identify your highest-gain exposures and match the right film to each.
Install time
30–45 min
Per window
$150–$400
Cure time
30 days