Why Use Lime Plaster for Natural Building. They also bind gently, while the stickiness makes for good adhesion to other surfaces. Otterbein lime plasters not only offer sustainable benefits, but breathability and flexibility for the building. Only traditional lime plasters are low VOC (Volatile Organic Compounds). A great material to work with, lime mortars and plasters stay smooth and malleable, even against the suction from porous brick and block. For instance, cured lime plaster is calcium carbonate, chemically speaking; limestone, in other words. They allow the movement of water vapour to air. Lime as a surface finish is aesthetically pleasing, with a more ‘natural’ look that comes from the double refraction of light through the calcite crystals that are present in it. Lime has early adhesion and it binds gently. Lime is sacrificial in its nature and designed to be softer than the fabric of the building providing the ultimate care and protection. However, the uncured material that we apply on our walls is also called lime plaster – but this time, it is calcium hydroxide. And then left for air dry with the access to … Designed to be breathable, flexible and sympathetic to traditional buildings, the plaster provides a permanent solution to damp and mould whilst improving insulation and reducing project times. The white lime mixed with the white sand produces a warm, bright plaster that is both beautiful and durable. In recent years it has become more popular because it is more environmentally friendly than cement. Lime provides such workability that you can include widely graded and sharp aggregates in the mix. Lime delivers its hardness and its waterproofing qualities through a process called carbonation. A thin layer of lime plaster on earth will not suffer serious cracks like cement stucco. And that’s important because moisture – effectively water – is the enemy of natural materials like stone, timber and iron. These enhance the performance of the finished work, as well as its aesthetic. Building’s fall into two categories for the purposes of surveying for damp. This is why lime-based mixes are such a pleasure to use. Even though it cures slower than cement, lime holds many advantages. Lime not only absorbs potentially damaging carbon dioxide from the atmosphere, but the amount of energy required to produce it in the first place is less than is required for the production of cement and, as it can be produced on a small scale, there is less impact on the local area. This creates a softer texture than you get with ‘harder’ cement-based products, which can complement the appearance of either contemporary or traditional buildings. Well, it basically allows buildings to breathe, so that when moisture forms it can escape. Compared to regular stucco, these have 28 percent lower carbon dioxide emissions associated with production and contain 50-65 percent post-industrial recycled content. 2. It seems that adding cement to lime reduces its breathability, elasticity, and durability. They can reduce site work times by a massive 75% to traditional application 2. They can reduce site work times by a massive 75% to traditional application – A free PowerPoint PPT presentation (displayed as a Flash slide show) on PowerShow.com - id: 871bd5-Mjk0Z As lime is a ‘flexible’ building material that gives a little when a building moves or shifts, it’s far more forgiving than more brittle  materials like cement which may crack or deform even with just a very little ground movement or swell. Sometimes in high-status work it is gauged with gypsum. It can often be mistaken for stucco. As a lime plaster and insulation expert, I often come across the misconception that lime as a building material is somehow old-fashioned but, in actual fact, lime is one of the very best substances you can use today. 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