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A rainscreen is an exterior wall detail where the siding (wall cladding) stands off from the moisture-resistant surface of an air/water barrier applied to the sheathing to create a capillary break and to allow drainage and evaporation. The rainscreen is the cladding or siding itself [1] but the term rainscreen implies a system of building ...
Rainscreen cladding is a form of weather cladding designed to protect against the elements, but also offers thermal insulation. The cladding does not need, itself, to be waterproof , merely a control element: it may serve only to direct water or wind safely away in order to control run-off and prevent its infiltration into the building structure.
While these curtain wall systems are more energy-efficient than older, single-glazed versions, they are still significantly less efficient than opaque (solid) wall construction. [13] For example, nearly all curtain wall systems, thermally-broken or otherwise, have a U-value of 0.2 or higher, which is equivalent to an R-value of 5 or lower. [14]
TN 77 Assessment and certification of rainscreen systems 2012; TN 78 Interfaces and joints - introduction 2012; TN 96 Assessing cradle and suspended access equipment loads 2016; TN 97 Selection of access equipment for façade maintenance 2016 . [5] TN98 Fire performance of facades - UK Building Regulations- (supersedes TN73) 2017.
Though installation and repair is relatively simple, wood siding requires more maintenance than other popular solutions, requiring treatment every four to nine years depending on the severity of the elements to which it is exposed. Ants and termites are a threat to many types of wood siding, such that extra treatment and maintenance that can ...
Most exterior veneer systems hang stone from a support wall by pins and anchors allowing air space between, essentially using stone as a rain screen. Anchorage systems are superior for exterior use because they permit any water that permeates the veneer to escape, while air space allows the materials of the supporting substrate wall to expand ...
In order to achieve these objectives, all building enclosure systems must include a solid structure, a drainage plane, an air barrier, a thermal barrier, and may include a vapor barrier. Moisture control (e.g. damp proofing ) is essential in all climates, but cold climates and hot-humid climates are especially demanding.
A rainscreen is the weather-facing surface of an exterior wall that stands off from the moisture-resistant surface of the main wall. There is a gap or cavity between the outermost layer, or rainscreen, and the main wall which prevents infiltration of moisture into the main wall assembly and allows air to circulate between. [37]