Lime Plaster 101

lime plaster wall

Lime plaster is a mixture of sand and calcium hydroxide used for frescoes and for architectural purposes. Most consider lime plaster to be the combination of pure lime and sand, not the combination of lime, cement, and sand, which is called stucco. Hydraulic or hydrated lime is considered the pure type of lime that should be used in lime plaster mixtures. Once widely popular, lime-based architectural surfaces began to be replaced by cement but are slowly coming back into popularity, due to lime’s environmental properties.

What Can You Do with Lime Plaster?

Lime can have a number of different household or architectural purposes, such as plaster, mortar, lime wash, and paints. Lime plaster can be used both as an exterior and interior plaster for walls. Lime plaster has a similar look to stucco and provides a nice surface and texture for walls or the exterior of your home. Different textures can also be created on the plaster for different styles and looks, based upon what you want in your home.

Environmental Benefits of Lime Plaster

While both lime and cement use CO2 in their manufacture, lime absorbs CO2 when it is setting, so it is more eco-friendly than cement. Limestone has a lower burning temperature than cement, so less fossil fuel is used to burn limestone. Cement plaster is denser than lime plaster so it weighs more heavily on transportation vehicles and costs them more money for gas. Limestone saves a lot of valuable non-renewable resources. Lime also has thermal properties, so it can save you money on heating bills as well. Lime mortar can be cleaned off of bricks, unlike cement mortar, so bricks can be used again. Lime plaster and other forms of indoor lime are good because of their high pH level; it is resistant to mold, fungus, and other indoor air pollutants.

Other Benefits of Lime Plaster

Lime plaster is durable. It has been used for a number of purposes all over the world throughout time. Ancient buildings made of lime are still standing today. Lime plaster can be tinted a certain color that will last a lot longer than normal paint. Lime plaster is extremely durable. It does not crack like cement, because it can absorb water better; its breathable properties allow water in and out. It also is resistant to fire and UV rays, so it can last a long time as an exterior surface.

If you’re looking for a durable and reliable way to plaster your home on the inside or out, lime plaster is a great choice. It makes a durable finish that will fight weather conditions outside, and a stylish finish that cuts back air pollutants on the inside of your home. Its environmental properties make it ideal for homeowners, and it’s easy to apply yourself. There are many different kinds of lime mixtures and recipes, but if you find one that suits you, it’s usually very easy to apply and get the kind of finish you’re looking for. If you want the full environmental benefits out of your lime plaster, make sure you’re using pure lime in your mixture.