Found 34 results for the keyword ‘Vapour Barrier’

  • Is my crawl space insulation right?

    Joe and Joan from St. Thomas Ontario wrote: "Our kitchen has a 2 foot crawl space underneath. We hired a contractor to insulate the floor with pink insulation. He used plastic to hold it up. The kitchen was still not warm enough so we nailed up Styrofoam over the plastic. The following year ...
  • MYTH: INSULATING HOT WATER LINES IN HEATED BASEMENTS WILL SAVE MONEY.

    Insulating hot water lines that run through a heated basement or crawl space sounds logical, but in fact it will same you little or no money. The infrequency of their use lets them cool off whether they are insulated or not, and the heat is converted to useful room heat anyway. The exception is ...
  • Just how do you install windows properly?

    The reality is that there is not just one good way to install windows, but there are certain principles that must be taken care of with any installation to prevent cold air or water leakage later. Basically a window installation must shed most of the water with the siding, what does get through ...
  • Insulating problems with historical buildings

    Hello Jon I am the chairman of a church committee with the task of raising money, and doing the admin. for the restoration at St Andrew United. My concern now is the proper procedure to fully insulate the Church. I am alright with the Attic as well as the crawl space, however I am pondering the...
  • Wind protecting houses in Newfoundland.

    Newfoundland is known for its brutal winds, all year round. So I thought there would be no better place in Canada to take a look at what to you do to a house to avoid wind damage, and keep that wind out of the house. I called on my old buddy Gary Reardon, a prominent new home builder in St. Jo...
  • What is the difference between a vapour barrier and an air barrier?

    It's become very important to understand the difference between a vapor barrier and an air barrier. If we completely seal a polyethylene sheet on the warm side of the insulation, we call it a combined air/vapor barrier. But it's possible to put the vapor barrier on the warm side of the insulati...
  • 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...
  • Would installing insulation between the floor joists prevent moisture in the house from a crawl space?

    Harold in New Brunswick has a problem with moisture and mould. He has a bungalow with a 2 foot crawl space. There is no insulation in the floor and no vapour barrier under the floor. He asks if installing insulation between the floor joists prevent moisture in the house?No. Most insulation wi...
  • 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...
  • Good and bad techniques in insulating basement walls.

    The national building code requires a minimum level of insulation in a basement that reaches about two feet below the outside grade level. The objective is to make this storage space a heatable space. Hence some materials and techniques have developed that satisfy this minimum code requirement th...