A flank wall is a side wall of a building, distinct from the front and rear walls. It's commonly found on detached houses, at the ends of terraced or semi-detached houses. These walls, often exposed to harsh weather conditions and sometimes difficult to access, frequently sit below a gable wall.
Understanding Flank Walls in Different Contexts
The term "flank wall" appears in several contexts, each with slightly different implications:
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Residential Architecture: In this context, a flank wall is a side exterior wall of a house, especially relevant in describing the location and potential maintenance needs of a building. As noted in a relevant source, “The flank wall, which is either side of a detached house or at the end of a terrace or semi, and the gable, which sits above it within the slant of the roof, often take the brunt of the bad weather, and are frequently more difficult to access.” This highlights the importance of proper maintenance and protection of flank walls in residential buildings.
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Acoustics: In the field of acoustics, a flanking wall refers to a wall or structure that allows sound to bypass primary sound insulation, reducing the overall effectiveness of noise reduction efforts. “A flanking wall can allow sound to bypass or “flank” sound insulation measures, leading to reduced effectiveness in noise reduction.” This is a crucial consideration in designing soundproof spaces.
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Other Uses: The term "flank" can also be used in other specialized areas, such as in hiking trail descriptions (referencing a section of a trail alongside a cliff face), or medical contexts (describing a type of hernia). However, these usages are not directly related to building construction.
Practical Considerations and Examples
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Maintenance: Flank walls, due to their exposure, require regular maintenance to prevent water damage and deterioration. The use of materials like UPVC fascia boards can offer protection. “Gable ends are easily protected through the use of UPVC fascia boards, which are available in plain white, coloured or imitation wood finishes.”
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Extensions: In some cases, flank walls may be removed or altered during home renovations or extensions. “Yes, there's no problem in removing a flank wall and extending the house footprint, and even underpinning during the work.”
