Publish by: Italian Plasterworks
Lime has the following beneficial qualities:
A purely natural material
Correctly formulated as a truly sustainable lime paint or plaster, a pure, natural lime does not include any artificial admixtures, plastics, or harmful chemicals.
Breathabilty (high porosity, high permeability)
In our view, sustainable structures should be designed to breathe, just as we do. If a building envelope is too air tight, moisture can become trapped inside.
One of the outstanding benefits of using lime as an internal or external finish is its high porosity. bioLime allows you to build permeable wall systems, eliminating standing condensation. A lime-finished structure "breathes", enabling moisture to evaporate.
If you're building in a damp or tropical climate, preventing moisture damage is especially critical. Using lime as a finishing material will enable you to build structures that prohibit moisture, bacteria, mold, and mildew from forming within the building envelope.
Lime paints and plasters can tolerate damp and sea-side applications that would normally de-laminate acrylic-based plasters, latex-based paints, conventional stuccos, and even Portland cement and Gypsum-based plasters.
Lime is mold-resistant and a natural biocide. Due to lime's high pH (between 12-12.5), it serves to reduce indoor air pollutants, while making the structure hygienically sound and easy to clean.
When structures made of lime are subjected to small movements, they are more likely to develop many fine cracks than the individual large cracks, which occur in stiffer cement-bound structures. Water penetration into these fine cracks can dissolve "free" lime and bring it to the surface. As the water evaporates, this lime is then "re-deposited" and begins to self-fuse, healing the cracks.
This explains why some old lime structures on non-stable foundations distort with age, but do not fail.
Often, soft lime paints and plasters are used as protection for structures, particularly from severe rain. In essence, these lime products act "sacrificially" in protecting buildings.
Amazingly, when designed correctly, lime will not allow penetrating water to enter a structure.
Lime is exceptionally durable. The Pantheon, the classic temple in Rome, is constructed of lime and spans over 140 feet. Incredibly, this beautiful structure has lasted nearly 1,900 years. Lime's durability is evident throughout the ages.
Lime surfaces feature a beautiful luminescence and are pleasing to the senses. A lime-finished structure enhances comfort, tranquility, and a communion with the Earth.
For more than 7,500 years, lime has served as the principal binder in mortar, plaster, render, and lime wash. Dating back to the days of ancient Egypt, Greek, and Rome, and throughout the civilized world–and during the golden age of lime in the 19th century and up to modern times–lime paints and plasters have proven themselves as extremely durable and resilient.
Content provided by BioLime