There are many efforts to make building more comfortable and to reduce the carbon dioxide emissions from buildings. For many years we tried to increase wall thickness of the wall insulation and roof insulation and adding the bottom insulation.
This seems logical, but I recently attended a seminar in where a speaker tried to make a comparison of as opposed to two major areas of new construction. These building were build year apart and built insulation levels in the store later far exceeded the first branch. Although the shops were of similar size, has a similar level of glass and skylights, the shop recently built, although it improved R-values (please refer to insulation R-Value chart), 43% costs warmer than the last. (more…)
