Best window type for south side of sunroom?

bryan11January 19, 2010

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.

Thank you for reporting this comment. Undo

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

    Bookmark   January 20, 2010 at 10:05PM
Thank you for reporting this comment. Undo

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

    Bookmark   January 21, 2010 at 10:28PM
Sign Up to comment
More Discussions
Geothermal in south bay area
I am wondering if anybody has feedback on geothermal...
Ideas on how to capture gray water runoff from A/C?
The pipe that comes out of our crawl space which empties...
Geo in old brick home
Background: we put in geo last year and love it. 2100...
Solar Panel on Shed, Standalone?
I have a small shed, like 10' x 12'. It is about 30'...
Planning for a new green home
I am in the planning stages of building a new home...
People viewed this after searching for:
© 2015 Houzz Inc. Houzz® The new way to design your home™