
I'm living on the first floor of an old brick house that gets pretty cold during the winter. I don't have money to properly insulate the walls or windows (that would be several thousand dollars/euro). There are 2 big (about 1.5 by 1.5 meters) windows per room and old wooden doors separating the rooms.The windows are "double casement" (each side opens inwardly). There are 2 pairs of windows, one behind the other, with about 10 cm between them. They have an old wooden jointery (not sure this is the correct term, but it's not PVC).I can use silicone to caulk the cracks in the wood to reduce convection. But IMHO the biggest problem is heat conduction through the glass (correct me if I'm wrong). I want to put some sort of insulation on the glass to reduce the conduction. I don't care about being able to see through them as I always keep the curtains closed. I'm renting, so I can't do anything permanent or too damaging to the jointery (besides some small nails or tape).What insulation should I use? I assume it should be something similar to wall insulation, but I've never had to deal with insulation, so I'm at a total loss as to what is effective and, at the same time. relatively cheap. Will polystyrene work well? What about a DIY sheet of old blankets wrapped in plastic/nylon sheets (those big sheets used to protect furniture when painting)? I can use wooden or metal sticks to make the frame of the wrapping so that the blankets don't sag or deform. Will that have any noticable benefit?Whatever cheap insulation I use for the glass, I have to decide where to put it - on the inner side of the inner window? On the outer side of the inner window? On the inner side of the outer window? I noticed some condensation and freezing on the inner side of the outer window, but I'm not sure if that would affect the insulation's thermal conduction's properties (whether I'm using polystyrene, blankets wrapped in nylon or something else).Sorry for the long and overly-detailed post. Maybe some of the information is unnecessary or redundant, but I'm not sure which. Thanks for reading! via /r/DIY https://ift.tt/2DWV6PN