Why This Matters
Solar heat gain through windows accounts for 25–30% of residential cooling load in California homes. That's the single largest controllable source of summer heat gain.
Near PACE Supply in Berkeley, california's 260+ sunny days per year make solar control film a year-round performance upgrade. This is especially problematic for single-family home installations, which the most common residential application; window film reduces heat gain and protects furnishings.
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
Film selection for south- and west-facing windows should prioritize solar heat rejection. For north-facing windows, UV protection and glare control are typically the primary goals.
Low-e retrofit film is specifically designed for older single-pane windows. It adds a low-emissivity layer that dramatically improves thermal performance — the most cost-effective upgrade for pre-1980 California homes.
Micro-perforated pattern provides one-way privacy and solar control without blocking the view.
Climate & Solar Performance
Properties near PACE Supply in West Berkeley, Berkeley experience year-round solar intensity conditions that make window film particularly effective. Perforated Window Film is specifically engineered to address this solar exposure.
Effective against year-round solar intensity
Rated for single-family home protection
Professional installers available in Berkeley
10–15 year manufacturer warranty
Installation Guide
Installation cost varies by window size, film grade, and local labor rates. Expect $8–$15 per square foot installed for quality solar control or ceramic films. A typical residential window runs $150–$400.
Install time
30–45 min
Per window
$150–$400
Cure time
30 days