Smart Remodeling

June 9th, 2010 by Peter Schmelzer

Which of these home improvements do you think can cause condensation on your windows and cause your water heater to back draft?

  • Replacing the old furnace with a high-efficiency furnace
  • Caulking and sealing windows and other wall penetrations
  • Increasing the R-value of insulation in the attic
  • Installing a new range hood or bath fan
  • Adding conditioned space to an existing home
  • Changing a fireplace
  • The truth is that they all have the potential to cause unexpected consequences, including condensation on the windows, carbon monoxide in the air, and mold in the walls.
    At the Smart Remodeling seminar in Rochester, we reviewed the interdependence of the systems in the house and how well-intentioned upgrade can cause a snow-ball effect in pushing an existing house toward and over the cliff to failure.

    Why?

    All of our existing homes rely on energy to keep them stable and to manage moisture. Older homes may be stable for reasons that aren’t immediately obvious. For example, wood fireplaces traditionally allow a high volume of air to escape through the chimney. That air may actually be removing moisture from the basement in the spring. If you install tight doors over the fireplace and the air is not allowed to escape, what happens to the moisture? It stays in the house, causing odors, mold, and condensation, unless overall ventilation of the house is addressed at the same time. The same holds true for other seemingly innocuous renovations.

    The improvement ideas in the pop quiz above are all great things to do for energy efficiency and sustainability, yet experience has shown that they can lead to unintended results. These can be prevented through the right analysis and design process. We invite your call to discuss how careful planning can keep your remodeling project on track and improve your home’s performance at the same time.

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