IWC or Milgard aluminum

[Lifelonglearner]

I'm deciding between IWC 8200 HS series aluminum sliders and Milgard A250 thermally improved aluminum sliders. I've read reviews of the Milgard saying they form condensation on the inside window and beading on the inside frame and puddles of water drip onto the window sill (and in some cases, all the way down the wall).

Have any of you heard of this problem? What are the pros and cons of each brand?

Thank you!

[WindowsDirectCinci]

Condensation on the glass (not in between) is usually indicative of humidity issues in the house and not reflective of a problem with the window

[Lifelonglearner]

Thanks, WindowsDirectCinci!

[toddinmn]

The aluminum frame and sashes can be part of the problem also. It would not be uncommon for that window to form condensation when a vinyl window would not.

[HomeSealed]

Good advice above.

Where are you located? Milgard is only available out west these days, is it fair to say that you are in a moderate to warm climate? That would be the only situation where aluminum would be recommended, as it is very conductive (even when thermally broken), so use in cold areas is a bad idea.

As far as condensation, as alluded to above, it is caused by environmental conditions. That said, different windows and materials will be more (or less) resistant to it which you can use to mitigate or eliminate that. The wrong glass and/or window frame material for a given region (particularly colder) will see condensation in conditions that are much closer to the norm than other choices.