buildnoob
ECOECO
buildnoob
Interesting Ecoeco! So commercial windows are gimmicky and better to go with residential + low e, glazing or custom sized to suit.
Yes, that's it. So called commercial are very low tech, wide and thick. Most residential windows will out perform commercial energywise, and the residential windows will be designed and tested to do what they do best.
I am not a fan of Low-e because it only stops radiant heat, i.e. sunlight. It's a filter for solar heat. Yes it registers on the various softwares, but really, it only affects solar heat gain. Any form of shade preventing direct sunlight will outperform Low-e.
Really noob question - "because it only stops radiant heat" - so what doesn't low e stop? Like heat and noise loss?
The reason that double glazed windows perform so well as insulators is not in the glass, it is in the airgap.
https://www.homeone.com.au/articles/doo ... _back_with
Low-E glass has a U value which affects only 10% of the total heat loss through windows. It is really only effective in solar heat gain, but it is nowhere near as effective as a shade over the window.