How much glazing is too much glazing for southern exposure?
I am doing a remodel to a 1902 farm house. The house sits facing North and the intent is to put a large great room on the southern side of the home to aid in the heating for this home in the winter. I have hired an architect who was supposed to be familar with passive house and green building techniques but i have found out that he is not and i am trying to figure this out on my own.
The house will be insulated as tight as possible from the exterior and we are in climate zone 4. At .10 a kilowatt, this house is expensive to heat with an all electric heatpump for the up stairs and down. I had an idea of building a great room on the southern side of this house and the glazing from the great room would aid in heating the house. I think my architect has over done my glazing. The southern wall is 30 foot long and 21 foot tall at its highest point in the middle and the shortest point is 17 foot 3 inches on the ends. The window that the Architect has planned for is a double pane window unit that takes up space of 18 foot wide and 17 foot tall in about 6 windows ganged together. the top windows are fixed but the bottom window are swing out casement windows. The overhang from the roof is only 2 feet. I wanted to possibly add another room in front of this “big window” and i also feel that 2 feet is not enough for shading. I dont know what would be best to do. scap the idea of using the windows for heat in the winter time or if i do use the window idea, what would be best, building a room in front of the big window for an extra solar buffer, making sure that i am able to vent this room in the summer or decrease the size of the windows on the southern exposure and then what ever size window i choose, allow it to be triple glazed? which is better? I dont know what is best and wished i could have found an architect who knew what would be best for me and to get me what i want ” a comfortable home that uses green energy, and passive haus techniques to achieve this” any help would be appreciated! 2×6 walls, R50 attic, The 1902 part of the house i plan on insulating from the outside but thats a whole series of another set of questions.
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