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These terms help you pick the right window film to make your home more comfortable, protect your belongings, and save money on energy bills.
For example:
Want a cooler home in summer? Look for high Total Solar Energy Rejection,
IR Rejection, or low SHGC.
Want to protect furniture from fading? Choose a film with high UV Rejection .
Want bright rooms without heat? Go for a high Light-to-Solar-Gain Ratio.
Want to save on heating in winter? Pick a film with a low U-Factor and Emissivity.
Meaning: How much of the sun’s ultraviolet (UV) rays (which fade furniture and harm skin) the window film blocks.
Why it matters: A higher % protects your curtains, rugs, and furniture from fading and keeps your family safer from UV exposure. It’s like sunscreen for your home.
Meaning: How much the film cuts down on bright, harsh light compared to plain glass.
Why it matters: More glare reduction means less squinting when watching TV or working in a sunny room. It’s like sunglasses for your windows.
Meaning: How much daylight the window lets into your home.
Why it matters: A higher % means brighter rooms, so you may need fewer lights on during the day, saving electricity. Great for a cheerful, well-lit kitchen.
Meaning: How much daylight the window film blocks or reflects away.
Why it matters: A higher % means less light comes in, which can reduce brightness in overly sunny rooms. It’s like dimming the sun for comfort.
Meaning: How much of the sun’s heat (infrared rays) the film stops from coming in.
Why it matters: A higher % means less heat enters, so your home stays cooler without overworking the AC. Think of it as a barrier to summer heat.
Meaning: Similar to IR rejection, but it also accounts for heat that gets absorbed by the window and comes back into the room.
Why it matters: A higher IRER keeps your home cooler, especially in hot climates, saving energy. It’s like a shield that stops heat from sneaking in.
Meaning: How much of the sun’s total energy (light, heat, UV) the window film blocks.
Why it matters: A higher % keeps your home cooler and protects it from sun damage, saving on cooling costs. It’s like an umbrella blocking the sun’s heat.
Meaning: How well the window film blocks heat compared to regular glass.
Why it matters: A lower number means better heat blocking, so your home stays cooler, and you spend less on air conditioning. It’s like a shade tree for your windows.
Meaning: Similar to shading coefficient, but it also considers heat that gets absorbed and then comes into the room.
Why it matters: A lower SHGC means less heat enters, keeping your home cooler and saving on AC costs. It’s like a barrier that stops heat from creeping in.
Meaning: How much of the sun’s energy (light and heat) passes through the window.
Why it matters: A lower % means less heat and light enter, keeping your home cooler and more comfortable. It helps control how much sun gets in.
Meaning: How much of the sun’s energy bounces off the window.
Why it matters: A higher % means more heat and light are sent away, keeping your home cooler. It’s like a mirror pushing the sun’s energy back outside.
Meaning: How much of the sun’s energy the window film soaks up (which can make the glass warm).
Why it matters: A higher solar absorption % means the window film absorbs more of the sun’s energy, causing it to heat up. A lower absorption % lets less heat into your home, reducing AC use and keeping rooms comfortable in hot weather.
Meaning: How much natural light comes in compared to unwanted heat.
Why it matters: A higher number means you get a bright room without it getting too hot, so you enjoy daylight without high AC bills. Perfect for a sunny living room.
Meaning: How well the window film traps the heat your home generates (like from heaters or body heat).
Why it matters: A lower number means less heat escapes, keeping your home cozy and reducing heating costs. It’s like keeping the warmth from your oven inside the kitchen.
Meaning: How easily heat escapes through your window.
Why it matters: A lower U-Factor means your home stays warmer in winter, so you use less heat and save on heating bills. Think of it like a cozy blanket for your windows.
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