DIY airtight window?
I am building a small (140ft^2) meditation cabin. It will be used a couple times a day for meditation and every few weeks for overnight stays. I would like to keep it heated to some constant, above freezing temperature even though it is only used a few hours a day. Therefore I want to air-seal and insulate.
My question is with windows — I would like to have most of the sides be windows (two of the sides will each have two, 4’x8′ windows — for a total of 4 windows). To keep costs low I am experimenting with the idea of making my own windows using a single pane of glass. I think this would work for this use case, because, as it is not used often, we could have thick thermal curtains on the inside, and the outside will have shudders that could be insulated.
I understand the R-value of single pane glass is about 1. My main worry though is about air sealing. If I want the house to score around 0.6 ACH50, what kind of gaskets/techniques can I use to:
1) create the window frames (eg does standard glazing work?)
2) allow the windows to open. I don’t have a strong preference as to if they slide, cantilever open, etc. I want to know if I can make them in any way, to keep airtight.
Is this a pipe dream? Too crazy of an idea?
Thank you all for the great articles and questions, this is such a helpful resource!
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