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Found 34 results for the keyword ‘Crawl Space’

  • BASEMENT: BATTS OR RIDIG FOAM BOARDS?

    Fiberglass batts, mineral wool batts and all kinds of rigid foam boards are commonly used to insulate basements both inside and outside. One of the critical rules when insulating basements on the inside is that there must be no air space between the insulation and the wall. (see no air space beh...
  • BASEMENT: INTERIOR OR EXTERIOR INSULATION?

    It is always better to insulate on the outside of basements and crawl spaces, but usually more expensive and more trouble. Brick or field stone foundations must not be insulated on the inside for much more than one foot below ground level. The poor quality of the mortar in these foundations dete...
  • MYTH: AN AIR SPACE BETWEEN THE INSULATION AND THE WALL PREVENTS CONDENSATION.

    Often promoted in southern Ontario, this theory has never, to my knowledge, been proven by any government agency or independent researcher in the insulation field. On the contrary, the unanimous opinion seems to be that it will cause, not prevent, condensation.  Even efforts to drain condensation...
  • DO I NEED TO MOISTURE PROOF THE BASEMENT WALL BEFORE INSULATING?

    If there is no water leakage problem, but the basement walls are a bit damp, you must cover the walls before insulating. Waterproofing coatings are not really necessary for moisture proofing. Polyethylene plastic sheets or horizontal strips of building paper are sufficient. These should be hung o...