THERMAL MASS SHOULD PLAY A WEIGHTY ROLE IN THE DESIGN OF OUR HOMES

There was a time when the self-builder had to choose between ‘light and tight’ or ‘mass and glass’ construction. Light and tight essentially meant an airtight timber frame construction; mass and glass meant a heavyweight masonry construction with large glazed areas to introduce solar heat (and light). Combining the two seemed to be incompatible — too much glass in an