Why This Matters
UV radiation is responsible for 40–60% of interior fading. It passes through standard glass almost unimpeded — clear glass blocks almost no UV. Window film changes that equation completely.
Near Potrero Energy in San Francisco, energy-efficient double-pane glass with low-e coatings can be enhanced further with retrofit film. This is especially problematic for multi-family residence installations, which condos and apartment buildings benefit from film to reduce hvac load and improve tenant comfort.
California's Title 24 energy code sets minimum window performance standards for new construction. Window film can bring older homes up to — and beyond — those standards at a fraction of the cost of window replacement.
The Solution
The cost of residential window film installation ranges from $8–$20 per square foot installed, depending on film grade and window complexity. Most homes see full payback within 3–5 years.
Perforated film solves the privacy-versus-light tradeoff for street-facing rooms. The micro-hole pattern maintains outward visibility from inside while blocking the view from outside during daylight hours.
Blocks high-heat solar wavelengths to reduce interior temperatures and UV exposure.
Climate & Solar Performance
Properties near Potrero Energy in Alta Potrero, San Francisco experience low-e glass performance conditions that make window film particularly effective. Solar Control Window Film is specifically engineered to address this solar exposure.
Effective against low-e glass performance
Rated for multi-family residence protection
Professional installers available in San Francisco
10–15 year manufacturer warranty
Installation Guide
Film curing takes 30 days after installation. During this period, you may notice small water bubbles or a hazy appearance — this is normal and will resolve completely as the adhesive cures.
Install time
30–45 min
Per window
$150–$400
Cure time
30 days