Found 42 results for the keyword(s) ‘Humidity’

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  Myths and misconceptions about concrete and water

  A comment from a reader: "I notice in your section on self leveling concrete that you mention about needing to let the water out before putting anything on top of the new compound. (Self Leveling Concrete) This is a common misconception about concrete, in fact the water does not leave, it become...
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  WHERE CAN I BUY A QUALITY HYDROXYL AIR PURIFIER IN CANADA?

  Residential sized units that I can recommend are now available for Canada direct from the factory in Florida. My research and experience have convinced me that using hydroxyl to clear the air of VOCs, kill mould, neutralize mould spores and more is the safest and most efficient way to make livin...
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  HOW DOES HYDROXYL AIR SANITATION WORK? – THE SCIENCE

  Hydroxyl generators are used heavily in industrial, commercial and institutional buildings including schools and hospitals for sanitizing the air, controlling offensive odours and providing that “fresh air” smell without fragrances.   They are used extensively in flood and fire restoration for cl...
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  Ventilation Strategies for Covid-19 and other air borne health problems

  Because of the seriousness of the issue, I want to take a moment to present my credentials other than that guy that has been on TV and radio for 42 years.  In the 1980’s I was one of the primary instructors for the R-2000 energy efficiency program teaching contractors across Québec through the AP...
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  Double walls and buried vapour barriers.

  June is building a new home in Kenora and they have decided to make what is often called a double wall structure to have room for lots of insulation. They are intending to build with 2x6 walls and then add another 2x4 on the inside to hold more insulation. They have been told that they could do s...
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  OVERVIEW: About cleaning up Mould.

  The whole question of mould started as a simple nuisance in home maintenance but with experience and research has become a major element of creating and maintaining a healthy house. Of course, whenever research develops over time, recommendations change and things can get quite confusing.   IT...
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  Crawl Space Moisture Barriers

  Hi Jon and Crew... I am in the process of putting down vapour barrier in my crawl space (what a chore). Two questions: 1) Should I bring in sand or similar material to level out the dirt floor? It has heaves due to natural pitch of the land of up to three feet in various areas. I am thinking that...
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  Overview - Condensation on the house side of thermal windows

  Richard writes in:   Hi, I could not find this second level question on your web site. I am familiar with the humidity levels required in a home to avoid condensation on the inside on a thermal pane window- we are still getting condensation with readings in the center of the room of 20 degree C ...
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  Basement walls -- Moisture & Vapour Barriers

  Do I need to place a vapour barrier against the brick wall, then insulation and then another vapour barrier over that?  The wall does not leak and is fully underground.  Barbara THE VAPOUR BARRIER The vapour barrier is more properly called a vapour retarder. It is designed to stop moisture in t...
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  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...