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Found 25 results for the keyword ‘Codes’

  • Vapour barriers and Showers

    There is a lot of debate about whether to put a vapour retarder (vapour barrier) on an insulated wall behind shower tiles.  The code has not historically been specifically clear on this so we get lots of different interpretations.  What the code does say clearly is that we should not have two vap...
  • Sealing ductwork in an attic

    Often furnace heating and air conditioning duct work is run though an attic and then back down into the house. Personally I think that this is a really bad idea unless there is absolutely no alternative route. Why? First, most duct work is not sealed where it goes through the ceiling, so a lot...
  • A bathroom fan switch in the downstairs hallway?

    Chris & Dorie from Richmond Hill, Ontario write: "Last summer we moved into our new home. About a month ago, I discovered that the mysterious switch in our front hall operates the fan in our second floor bathroom?! Is this a fire code regulation? Why did they not try to "hide" the switch i...
  • Softwood stair railings - a legal problem in Ontario.

    Until recently there were no residential code requirements in Canada about the strength of stair railing, and still none in the residential part of National Building Code. There are requirements about the spacing of spindles -- no opening larger than 4 inches to keep a baby's head from passing t...
  • Central Vacs -- Indoor or Outdoor exhaust?

    Health officials all recommend that central vacuum systems should exhaust outdoors while most installers do not put in an outdoor exhaust pipe.A few conflicting facts:The cost of piping the exhaust air outdoors is about $75 installed.Central vacs are noisy and a few municipalities have begun to...
  • Insulating an above grade block wall from the inside

    This article deals with a block wall above grade.  For a below grade block wall see Basement Perimeter Drainage and Leaking Foundations.   Bryan is faced with a totally un-insulated cinder block wall with 1x2 strapping and a plaster covering.  He is thinking about stripping it back to the block...
  • Legality of DIY electrical and plumbing work

    NEW CONSTRUCTION In the interests of health and safety a number of trades are controlled by law, most particularly plumbing and electricity. The degree to which plumbing and electrical work are actually regulated varies from jurisdiction to jurisdiction. For instance almost all work performed in...
  • The low flush toilet controversy & MaP toilet testing

    (This is a real good example of a living history. I wrote the first part of this entry in 2001. With a book you would have to wait for the next edition for developments. With a bulletin board you would have to read a lot of old entries. What I love about my web site is that I can change, adapt an...