Return to the Renewable Energy Forum | Post a Follow-Up

Best window type for south side of sunroom?

Posted by bryan11 (My Page) on
Tue, Jan 19, 10 at 21:46

What kind of glass is best for the south facing windows of a sun room in a climate with hot summers and cold winters?

A few sunroom companies are saying low-e, double pane windows are best for everything and show a demo of how a UV lamp transmits very little heat through the glass. I'd like the south windows to have maximum heat gain.

Follow-Up Postings:

RE: Best window type for south side of sunroom?

If you want the highest heat gain, then look for windows with the highest SHGC --this will be listed in the window spec or on the label. This will likely end up being a window with no low e coating at all.

If you do go for a window with a low e coating (which will improve R value, and reduce heat loss), be aware that some low e coats intended for hot climates also absorb a lot of sunlight, and have very low SHGCs, while the other form of low e coating for cold climates allows more solar gain -- but not as much as a window with no low e coating at all.

The attached URL for the Efficient Windows site has a lot of good information and some window selection tools.


Here is a link that might be useful: Efficient Windows Collaborative

RE: Best window type for south side of sunroom?

Thanks much. That and a bit of studying made all this make sense now.

 o Post a Follow-Up

Please Note: Only registered members are able to post messages to this forum.

    If you are a member, please log in.

    If you aren't yet a member, join now!

Return to the Renewable Energy Forum

Information about Posting

  • You must be logged in to post a message. Once you are logged in, a posting window will appear at the bottom of the messages. If you are not a member, please register for an account.
  • Please review our Rules of Play before posting.
  • Posting is a two-step process. Once you have composed your message, you will be taken to the preview page. You will then have a chance to review your post, make changes and upload photos.
  • After posting your message, you may need to refresh the forum page in order to see it.
  • Before posting copyrighted material, please read about Copyright and Fair Use.
  • We have a strict no-advertising policy!
  • If you would like to practice posting or uploading photos, please visit our Test forum.
  • If you need assistance, please Contact Us and we will be happy to help.

Learn more about in-text links on this page here