cavity wall insulation became part of building regulations in 1990s.
when did cavity wall insulation become part of building regulations?
1990s
section::::history.





























cavity wall construction was introduced in northwest europe during the 19th century and gained widespread use in the 1920s. in some early examples, stones were used to tie the two skins together, while in the 20th century metal ties came into use. initially cavity widths were narrow and were primarily implemented to reduce the passage of moisture into the interior of the building. the introduction of insulation into the cavity became standard in the 1970s and compulsory in the 1990s.





























section::::advantages.





























bullet::::- resist wind driven rain





























bullet::::- insulation provided by slow moving airfilms and airgap
cavity wall
a large number of properties that had the insulation installed by successive uk government-backed schemes were installed incorrectly or were unsuitable for the property. incorrectly installed cavity wall insulation causes water to seep into a properties walls, causing structural problems and damp patches that may also manifest into mould. in some cases, the damp and mould resulting from cwi can cause health problems or exacerbate existing conditions, particularly respiratory conditions. this has led to the formation of the cavity wall insulation victims alliance (cwiva). on february 3, 2015 the cwiva took the debate to the houses of parliament discussing the cavity wall insulation industry. as the 'scandal' has become widely recognised the number of claims has risen significantly and is set to rival the ppi scam.
cavity wall insulation