Secondary glazing will involve putting in an extra windowpane on an present window to enhance insulation. Circles signify the median AICc bodyweight, whereas horizontal bars stand for that interquartile variety. Note that values along the horizontal axes don't enhance linearly. Source data are presented as being a Source Facts file. https://natural-eye-lashes93703.thelateblog.com/35101928/5-simple-statements-about-energy-efficiency-explained