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Found 203 results for the keyword(s) ‘attic insulation’

• Article

  BASEMENT: HEATED SPACE, WARMED SPACE, OR COLD SPACE?

  It is not a good idea to leave a basement completely cold, as this subjects the walls to freezing. A crawl space under the house can be left cold by insulating the floor above, but less insulation is required to simply insulate the perimeter of the crawl space (although you will have higher ...
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  FIVE CHOICES TO MAKE BEFORE INSULATING A BASEMENT OR CRAWL SPACE.

  You must make five decisions before insulating your basement or crawl space:-- Heated space, warmed space, or cold space?-- Interior or exterior insulation?-- Full height or partial height insulation?-- Fiberglass or rigid foam board?-- What R value?I discuss each of these decisions separately in...
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  WHAT FACTORS CAN MAKE BETTER BASEMENTS?

  The three fundamental cures for basement problems are: removing the water from the outside, using granular back fill or a drainage layer against the foundation wall and insulating on the outside of the basement. Any one could stop or prevent a problem, all three of them together is the bes...
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  WHAT FACTORS CAN MAKE BASEMENT PROBLEMS WORSE?

  Any of the following five factors can make matters worse:-- Thermally conductive soils: Dense soils that hold water fairly well, in contact with the basement wall are asking for trouble. Clay soils are even worse in that they allow migration upward of water through capillary action, the prim...
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  BASEMENTS AND CRAWL SPACES

  I love the story that Harold Orr of the National Research Council tells about basements. Years ago, a farmer went into his field, dug a hole and prayed to God that it would fill up with water for his cows. He called it a watering hole. Then a housing developer bought the farm, dug a hole o...
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  FOAMED-IN-PLACE: UREA FORMALDEHYDE.

  Aside from the controversy about health problems, this was a poor insulating material in the first place. It was initially given a high R rating, but was subsequently down graded sixty percent by the Canada Mortgage and Housing Corporation, because it tended to shrink and leave gaps in the i...
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  FOAMED-IN-PLACE: POLYMERIC FOAM

  Colour: Orange, pink, yellowThermal Resistance: HighCost: It is expensive insulation but cheap caulking.Capacity to dry out if wet: FairFire Resistance: Poor. Produces toxic fumesFungus / Vermin Resistance: GoodLimitations: -- Expands on application and with age. Do not shoot into a total...
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  FOAMED-IN-PLACE: POLYURETHANE FOAM

  Colour: Yellow - OrangeThermal Resistance: RSI - .042/mm R - 6.0/in. Very High.Cost: Professional application -- expensiveCapacity to dry out if wet: FairFire Resistance: Poor: produces toxic fumes.Fungus / Vermin Resistance: GoodLimitations: -- Difficult to control quality of field...
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  RIGID BOARD: RIGID GLASS FIBRE

  Examples: BASECLAD from Fiberglas CanadaColour: PinkThermal Resistance: RSI - .030/mm R - 4.3/in. High.Cost: HighCapacity to dry out if wet: Excellent.Fire Resistance: GoodFungus / Vermin Resistance: GoodLimitations: -- Must not be installed in the ground unless it reaches all the w...
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  RIGID BOARD: SEMI-RIGID GLASS FIBER

  Example: GLASCLAD from Fiberglas Canada -- but this product is no longer produced as of the summer of 2000.Colour: Pink with Tyvek house wrap covering.Thermal Resistance: RSI - .031/mm R - 4.4/in. HighCost: HighCapacity to dry out if wet: Excellent.Fire Resistance: GoodFungus / Vermin...