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Found 46 results for the keyword ‘Mould’

  • Tracing the source of nasty plumbing odours

    Evert from Brownsburg, Quebec has the problem of a sewer odour in his bathroom but isn't sure where it is coming from and whether or not he needs to change his toilet. It can in fact be difficult to localize the source of sewage odours and hence which fixture or drain is guilty.  One technique ...
  • OVERVIEW: Was Urea Formaldehyde (UFFI) foam insulation really a health hazard?

    (updated Sept 2012) Since the early 80's Urea-Formaldehyde Foam Insulation (UFFI) was banned in Canada and the US. The Canadian ban is still in place while it is now legal again to sell Urea-Formaldehyde based foam in the US and Europe. Whether it ever was or still is actually a health problem ...
  • How do you keep mould off of bathroom tile grout?

    One viewer has a cold, probably uninsulated, wall in his shower, and the mould grows rapidly on the grout. What to do? He is right when he suggested that the best idea would be to tear down the wall and insulate it properly, and while renovating, make sure you have a functioning bathroom fan to ...
  • Our washing machine smells.

    Karen from Kingston, Ontario writes: "We have a washing machine on the second floor and have noticed the water from previous cycles does not always seem to drain completely away, as evidenced by a smell of grey water when the machine begins it's next cycle. Our upstairs plumbing is well vented wi...
  • OVERVIEW: Spring Flooding of Basements

    Every spring basements get flooded with water and I get flooded with letters about basements turned into swimming pools. Although there is a lot of information on this site about the problem, let me summarize and link it together.  For solutions, see PREPARING FOR  A FLOOD The spring thaw is the...
  • What is the proper level of humidity for a house in the winter?

    Victor from Stoney Creek, Ontario writes: "My house is a 3 level back split and is 3 years old. The furnace is natural gas. I am having problems with condensation and mould on my thermal windows! The window manufacturer said that there is too much humidity and that thermal windows always get cond...
  • The river is rising – preparing for a flood: OVERVIEW

    This article is about stopping water outside the house, then if necessary, controlling the situation as your basement floods.  For some very interesting water alarms, covering both plumbing and overland water,see Stopping Plumbing Floods.   SANDBAGGING The first line of defense is sandbaggin...
  • Creating Drainage Paths Under Basement Walls

      For years we have talked about protecting the sill plate of basement walls from moisture rising up from the concrete.  This could be water in the concrete from plumbing spills, or even from under the slab from a high-water table.  The old standard ways to protect that bottom piece of wood on t...
  • The negative side of Microban, BioFresh & other "antimicrobials"

    I just received (October 2014) an alert from Healthy Building News about additives in many building products that are supposed to kill microbes and make the house healthier.  These things are called “Antimicrobials”.  A couple of the best known trade names are Microban and BioFresh.  Little disi...
  • Trained Indoor Air Quality Investigators

    As indoor air quality (IAQ) has been identified as a more and more important issue in our homes, the Canada Mortgage and Housing Corporation  had  instituted a training program to train individuals/companies who are qualified to come into your home, identify IAQ problems and outline the solutions...