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Incorrectly installed cavity wall insulation (CWI) causes water to seep into a property's 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.
Exterior insulation and finish system (EIFS) is a general class of non-load bearing building cladding systems that provides exterior walls with an insulated, water-resistant, finished surface in an integrated composite material system. EIFS has been in use since the 1960s in North America and was first used on masonry buildings.
The additional cavity on the north wall was excluded from the conditioned area (and created a potential fire hazard). Dark roofs and absent radiant barrier was not adequate to inhibit summer solar gain; The presence of a fireplace, chimney and clothes dryer were a source of convective heat loss; The design was not adequate to function in polar ...
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 ...
The 2006 Review of the Sustainability of Existing Buildings revealed that 6.1 million homes lacked an adequate thickness of loft insulation, 8.5 million homes had uninsulated cavity walls, and that there is a potential to insulate 7.5 million homes that have solid external walls. These three measures alone have the potential to save 8.5 million ...
Dense-pack cellulose is highly resistant to air infiltration and is either installed into an open wall cavity using nets or temporary frames, or is retrofitted into finished walls. However, dense-pack cellulose blocks, but does not permanently seal, bypasses, in the way a closed-cell spray foam would.
Barrier walls are designed to allow water to be absorbed but not penetrate the wall, and include concrete and some masonry walls. Drainage walls allow water that leaks into the wall to drain out such as cavity walls. Drainage walls may also be ventilated to aid drying such as rainscreen and pressure equalization wall systems. Sealed-surface ...
It was hoped the Green Deal would lead to the renovation of the UK's housing stock with an estimated 14 million homes seeing energy efficiency improvements ranging from; double glazing, cavity wall and loft insulation through to gas and oil boilers, and renewable technologies such as solar PV, solar thermal and heat pumps. [2]
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