The Science Behind the Best Materials for Window Replacement
When replacing windows, selecting the highest-quality materials is essential to ensure long-lasting performance, energy efficiency, and aesthetics. Here’s a breakdown of the best materials used by top-tier professionals:
Silicone Caulk
Most window companies rely on OSI Silicone, which typically lasts around 5 years.
The Best Silicone: ASI Silicone, a true 50-year silicone, outperforms standard options with unmatched durability, flexibility, and weather resistance. It’s the gold standard for long-term sealing solutions here at Factory Direct.
Insulation
Many companies use fiberglass insulation or a Polyurethane Spray Foam around the window frame. While effective, it doesn’t provide the tightest seal.
The Best Insulation is Roll Form Polyurethane Foam Insulation, which delivers superior air sealing and thermal efficiency along with the ability to control the amount applied.
Note: High-quality polyurethane foam should not come from a spray can, as canned foam can expand uncontrollably, making post-installation adjustments difficult which will also bow in the window and cause problems with the operation of the windows as well. Properly applied professional-grade roll form polyurethane foam ensures a perfect balance of precision and performance.
Coil or Exterior Trim
Standard practice among many companies involves using poly or PVC coil with a single layer of paint. These materials offer minimal protection and durability over time.
The Best Exterior Trim is a High Performance Premium Coil with enhanced features, including:
UV Protection for fade resistance.
Scratch Resistance for long-term durability.
Harsh Climate Coating to withstand extreme weather.
Brushed Texture for longevity aesthetic appeal.
Satin Inhibitors to prevent gloss deterioration.
Backed by a 30-year warranty for peace of mind.
Premium coil typically comes in a 19-gauge 3ft x 50ft roll, and skilled installers meticulously form custom trim around each window for a precise, professional finish.
The Bottom Line: Using superior materials like ASI Silicone, polyurethane foam insulation, and advanced exterior trim doesn’t just make a difference in performance—it sets the standard for craftsmanship and longevity. Trust in experts who prioritize these materials to deliver the best results for your home.