Answer One "Planned-holes-high-in-the-house" are part of buiilding science considerations as to how air moves in buildings creating pressure differences that can help to keep houses dry and mold free or can help to trap pollutants in the house or even in the walls.A planned-hole-high-in-the-house...
Answer Two Any power exhaust ventilator taking its air from inside the house (bathroom fans, kitchen fans, clothes dryers, central all-house exhaust fans) will raise the neutral plane whatever the location of its input or output -- although they will be more effective if they draw air from high i...
I am always amazed at house construction where so often things are half built or more while people are running around beginning to think about "extras" that should never be though of as "extras" but as part of the essential system. So time for one of my lectures -- (you asked for it).Heating is o...
Ice Dams are a serious problem throughout Canada, although it varies from year to year as to which region gets hit. Here we visited one of the solution companies who work to seal up the primary cause of ice dams, the warm air leaks into the attic. For more background on the problem check out th...
Mike from Kingston, Ontario writes: "Why do all of my counter tops come away from the exterior walls in the winter time? The caulking between the drywall and the back splash stretches, and in some cases tears -- sometimes as much as 3/16". Our house is 14 years old, all brick two story, faces w...
Few furnace filters, except expensive HEPA filters, do much about trapping or killing germs. Electronic air filters will reduce somewhat the air born germ count because the high electrical voltages do kill some of the bacteria passing through them and probably all that is caught on the plates. ...
Any wood product will expand when it gets wet, some worse than others. Today we have a wide variety of wood or wood like flooring products.Massive HardwoodFirst you should understand that even massive hardwood, if allowed to stay wet or overly humid for too long will swell up and potentially buc...
Olive Taylor from Calgary, Alberta opened her home to our cameras and then amazed us with her self engineered improvements to her furnace humidifier.She didn't like the idea of stale water just sitting in the bottom of that drum type humidifier so first she scrapped the cheap float valve for a be...
Canada Mortgage and Housing Corporation (CMHC) does not recommend the use of any blown-in insulating material inside "enclosed vertical cavities" (that's a fancy way of saying "walls that are not open"). They feel that techniques of installation and verification during installation are not good ...
Paul from Prince Edward Island needs an exhaust fan in his bathroom and wants to know where is the best place to put it.If you go up through the roof, you will be unable to totally avoid condensation in the top of the duct that can come back into the bathroom. I would prefer to avoid going throu...
