Building Science

Air and Moisture Barriers Create Healthier Buildings

Eliminate mold and allergens from indoor environments

Air and moisture barriers improve more than just energy-efficiency. They create a healthier indoor environment. Air leakage can account for between 25 - 40% of the energy used for heating and cooling a building. Air leakage not only decreases energy efficiency, it can lead to a less healthy building environment.

Even small improvements in air-tightness can lead to significant reduction of air infiltration, minimizing the amount of energy consumed in order to maintain the proper indoor climate and decreasing the amount of moisture – warm, dense, humid air – that can come into the building. The consequences of air leakage go far beyond the loss of energy efficiency. Air infiltration can be harmful to building occupants with molds, allergens and pollutants penetrating indoor environments.

An airtight building envelope significantly reduces the amount of work that the HVAC system has to do in order to maintain the desired interior temperature and humidity. Walls built with Bautex Block also provide a firm and stable substrate on which to apply the air and moisture barriers.

As a result, there is no movement, vibration or decay, like that which occurs in light framing systems over time. It’s also much easier to get a good installation of the air and moisture barrier on the Bautex Block wall than many other systems.

Bringing together the right design with the right building materials has enabled architects and builders to make great strides in improving the level of air tightness in structures of every size and purpose. Today, it’s possible to construct a new building with levels of air tightness that would have been inconceivable even a decade ago.

Download Understanding R-value, Mass Walls, Continuous Insulation and Air Tightness for more information.