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A crawl space or crawlspace is an unoccupied, unfinished, narrow space within a building, between the ground and the first (or ground) floor. The crawl space is so named because there is typically only enough room to crawl rather than stand; anything larger than about 1 to 1.5 metres (3 ft 3 in to 4 ft 11 in) and beneath the ground floor would ...
Wrap pipes nearest exterior walls and in crawl spaces with pipe insulation or heating tape. This will prevent freezing, especially for interior pipes that run along outside walls.
Insulate water pipes in unheated areas. Pipes in unheated areas, such as a garage or crawl space, should be wrapped with an insulating material like foam or heat tape.
Making thermal improvements by adding insulation to crawl spaces and ensuring no leaks achieves an efficient building envelope, reducing the need for mechanical systems to heat and cool the space. High-performance insulation is also supported by adding double/triple-glazed windows to minimize thermal heat transmission.
The easiest way is often to add layers of continuous rigid exterior insulation, [7] and sometimes by building new exterior walls that allow more space for insulation. A vapor barrier can be installed outside the original framing but may not be needed. An improved continuous air barrier is almost always worth adding, as older homes tend to be ...
If the renovation is of a smaller nature, the renovation directive applies. Examples of renovation are post-insulation of a cavity wall and post-insulation of a sloping roof against the roof boarding or under the tiles. Note that every renovation must meet the minimum Rc value of 1.3 W/(m 2 ⋅K). If the current insulation has a higher ...
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