Harald Koehn - Remodeling: Vancouver Bungalow

Healthy Home Renovation


	This 1957 Vancouver bungalow was renovated to achieve an environment to deal with the homeowner’s major health problems, resulting from occupational exposure to chemicals. The re-use of existing housing stock demonstrates efficient land use, minimization of landfill, and retention of the neighbourhood character. Several seminars/tours to the public were held to demonstrate this unique renovation. Throughout the house considerable evidence of mould and pollutants. House stripped to the framing, structural upgrade, including air sealing. Second storey addition added. R-2000 Standard technical requirements used as a guide. House blanketed with batt and rigid insulation (R20). Installed combined system of domestic hot water, space heating and continuous distributed ventilation and high-efficiency bag filter. High-performance vinyl windows (Low E/argon gas) installed. Finish materials with low emissions selected. Existing carpeting removed, floors refinished with hardwood. Energuide for Housing Rating: before -65, after -80 Hot – 2000 computer analysis: renovated house is 16% more energy efficient than required by the R-2000 standard. Harald Koehn Construction won a British Columbia Home Builders’ Association Silver finalist Georgie award for this renovation.

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