![]() ![]() ![]() What are the critical elements of an above grade wall? OUTSIDE THE BASEMENT – PLACEMENT OF AN AIR GAP MEMBRANE BETWEEN INSULATION AND DRYWALL – BETWEEN THE VAPOUR AND THE DRYWALL BETWEEN INSULATION AND DRYWALL – ON THE INSULATION SIDE OF THE VAPOUR BARRIER BETWEEN CONCRETE/MASONRY WALLS AND INSULATION IN CORNERS OF BATT INSULATION BETWEEN STUDS BETWEEN HOUSE SHEATHING AND BATT INSULATION INSIDE THE WALL BETWEEN INSULATED SHEATHING AND THE HOUSE For the rest, the first important thing to understand is that walls that are buried in the ground, usually called basement walls, do not function in the same way as walls above grade – so here they will be dealt with separately.Ĭlick on the title for direct access, or scroll to read the whole story. Most of this article will deal with walls that separate the indoors from the outdoors but at the end of the article is the one air space that is important between two heated spaces – air spaces with sound proofing batts. Yes, walls must be made differently in different climates. I have debated as to how to approach the air spaces and I decided not to do an historical evolution of walls, but rather work my way through a wall and discuss each of the air spaces commonly found in cold climate walls. So let me try and organize and explain as many of these air spaces as I can here in one place. Some are accidental - some on purpose, even code required - some served a purpose at one time in history but because of the evolution of construction, are no longer useful - some are wasteful - and some can cause damage.Īfter years of answering questions on this web site I realized that I had quite a scattering of information about air spaces in walls. Walls often have air spaces hidden somewhere between the siding on the outside and the drywall on the inside. ![]()
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