Windows are one of the main places a home gains or loses heat. Choosing efficient ones can improve comfort and reduce energy use. This guide explains the basics in plain language.
Key Terms Made Simple
U-Factor
Measures how well a window prevents heat from escaping. Lower is better.
SHGC
Solar Heat Gain Coefficient shows how much solar heat passes through.
Visible Transmittance
Shows how much daylight comes in.
Air Leakage
Shows how much air passes around the sash.
Features That Help
Double or Triple Glazing
Multiple panes with sealed gaps improve insulation.
Low-E Coatings
Reflect heat while still allowing light.
Gas Fills
Argon between panes reduces heat transfer.
Insulated Frames
Multi chamber uPVC or thermally broken aluminum frames resist heat flow. Learn about tilt and turn windows built with these systems.
Match Windows to the Connecticut Climate
Connecticut has cold winters and warm humid summers. Look for low U-factor values for winter and balanced SHGC for summer. Check the NFRC label and the ENERGY STAR climate zone map for the Northeast.
Do Not Forget Installation
Gaps around the frame leak air no matter how good the window is. Read about professional installation.
Frequently Asked Questions
Is triple glazing worth it
In colder climates it often is. Your installer can help weigh cost against benefit.
Will new windows lower my bills
They can help and results depend on your home insulation and air sealing.
Ask for an Efficiency Focused Window Plan
Call Gold Crown European Windows at 203-817-2283. You can also browse our custom windows.