Insulated glazing

High school (ages 12+)
Science & Technology

Name:

Date:

Step 1 · Read the article

Open the article and read it at the level above. Then answer the questions below in your own words.

https://smallwhale.org/articles/insulated-glazing

Write what each word means, using the article.

Do not copy the article. Write two things you learned, the way you would explain them to a friend.

Answers below are taken from the article’s stored facts, so they match what the student read.

1. What is the performance metrics?Measured by U-value (thermal transmittance) and Solar Heat Gain Coefficient (SHGC)
2. What are insulated glazing units (IGUs) and how do they keep a house warm?IGUs are windows that have two or more panes of glass separated by a sealed space. The space stops heat from moving through the glass, keeping the inside cozy.
3. Why do some IGUs use gases like argon or krypton instead of just air?Argon and krypton are denser gases that conduct heat less well than air. Using them makes the window even better at keeping heat in during winter.

U-value: A measure of heat transfer through a material or assembly; lower values indicate better insulation.
Low-Emissivity (Low-E) Coating: A microscopically thin coating that reflects infrared radiation, reducing heat transfer.
Interstitial Space: The sealed gap between the glass panes within an insulated glazing unit.