What Is UFFI? Urea-formaldehyde foam insulation (UFFI) was developed in Europe in the 1950s as an improved means of insulating difficult-to-reach cavities in house walls. It is typically made at a construction site from a mixture of urea-formaldehyde resin, a foaming agent and compressed air. When the mixture is injected into the wall, urea and formaldehyde unite and "cure" into an insulating foam plastic.

It does seem that there are hundreds of different styles of homes and we use different names for the same type of homes. For example, is there a difference between a bungalow or ranch style? What about a row house or townhouse? Semi, or should I say duplex? Here are definitions for some of the more common architectural styles and types of North American homes, including some you won't often find in Canada.

1. Water, moisture, mold, and, mildew in attic spaces can indicate potential problems with areas such as ventilation, insulation, and vapour barriers. This can lead to the premature wear of the roof covering, structure and building materials as well as increasing the potential for ice damming. $2,500 - Remove existing shingles and re-shingle a 3 bedroom bungalow $2,200 - Replace sheathing on half a 3 bedroom bungalow $500 - Add R20 loose fill insulation to 1,000 sq. ft.