There is an ideal relative humidity range for our health and that is somewhere between 35% and 55%. In modern life we have introduced many new sources of moisture into our homes. Daily showers, laundry, cooking and dishwashing tend to create concentrated bursts of humidity. Because conventional construction can tolerate very little increase in humidity without condensation/mold problems moisture from these sources must be mechanically sucked out of the home.
Building Biology advises us to look for a successful history of use when choosing building materials but in our ever changing product-based building environment we seldom have the luxury of evaluating track record. This becomes quickly apparent when vetting new products for client’s homes. I recently called a major manufacturer to find out what was in a new product developed to prevent mold growth on framing lumber.
Although forced air is the most common form of home heat in North America it is far from ideal. This article explains why Building Biology regards the masonry heater as the ultimate heating system for health, comfort and ecology.