Local manufacturing — low-e windows for passive solar design in colder climate
I have reviewed various posts and want to clarify some points…Thank you for any time you can lend my questions. You all have a wonderful forum here and I am a first time participant.
I am currently doing renovations and replacements for select window on a passive solar and adobe brick structure in high elevation New Mexico. All windows addressed are picture windows, uncased and basically framed and caulked into fixed position. Working on a DIY budget at a non-profit commune.
I am considering having windows fabricated locally in Albuquerque at a reputable glass shop that does auto and window fabrication. Am looking at 1/4″x1/4″ with a 1/2″ spacer for 1′ overall. Clear over Low-e with glazing on surface #3 for optimized solar gain and emissivity. They don’t do gas fill, but then I am at 7200 feet and I have read that gas fill is not that viable long-term at this altitude. The spacer has what I am assuming is a quality desiccant design.
Question 1…Is this spacing proportion of “1/4″x1/4″ with a 1/2″ spacer for 1′ overall” ideal dimensions for SHGC?
Is there any reason I shouldn’t have a local glass shop manufacture these windows when working on a tight budget?
I understand surface #3 is the best surface for my purposes for east, west and south exposure.
Question 3…Is #2 advisable for Northern exposure in elevated spaces prone to rising heat and heat loss, or will #3 suffice?
I understand that hard coat glass is ideal for my passive solar purposes…
Question 4…In the north facing windows prone to heat loss, should i get soft coat glass for greater emissivity?
Many thanks for helping me make these improvements with sage decision making. I understand that getting windows from a pro window company would likely be your highest recommendation, however, its not in the credit cards.
Many appreciations for your clarity,
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