Condensation depends on glass or frame surface temperature, household humidity, and room temperature. Condensation can occur independently on glass or frames. Quality installation has a major impact on window performance, including ease of operation and the extent of air leakage. Aluminum's strength, rigidity and light weight make aluminum windows easy to install for maximum performance. Not at all.
Some windows barely meet the standard, while others greatly exceed it.
Modern aluminum windows are attractive, energy-efficient, and reliable. Today, aluminum windows are manufactured with thermally-broken framing members. The central core acts as a barrier to heat flow from a warm interior to a cold exterior in winter, and vice-versa in summer. Strong and Durable Aluminum is strong and rigid. Moreover, aluminum's properties will not change over time, a claim that cannot be made by many other materials.