What is the best solution for heat loss through windows in existing buildings?
Answers
For reducing heat loss (or preventing heat coming in) through your windows, there are multiple systems available on the market. The simplest and cheapest are the heat reflective sheet. These are applied to the window panes by self adhesive (the sheets already have their own glue on one side). But you have to choose carefully, as some sheets are for cold climate, and other are for hot places. If you choose wrongly, you might have the one that will shrink in service. Those sheets that are used on automotive glass (to blacken, or reduce visibility into the car) have multi-level of shading. Those that are less dark are suitable for the house windows.
Another system, albeit more expensive is the double glazing system. It is basically windows with double glass panes. This traps air in between the two panels, thus increasing the insulation index, but still pass enough light through.
Happy trying folks.