When it comes to creating a parge coat, the Levelling Mortar is an installer favourite; it’s an incredibly versatile product that is suitable for a number of different projects and substrates. The mortar is a cement-based product that can be applied up to 50mm thick. It is highly waterproof and frost proof and can be applied by trowel or spray machine.
So whether you’re filling cracks in the walls of an older building, or creating a parge coat on new blockwork, the Levelling Mortar is great for creating a smooth surface before rendering. We’re going to be talking about a few situations in which the Levelling Mortar should be used to create a parge coat.
Creating a Parge Coat on New Build Blockwork
When rendering new build blockwork, a levelling layer (parge coat) is required to fill in the mortar joints and create a smooth surface. The Levelling Mortar should be used to achieve this, as it can be applied thickly enough to smooth other the joints (as opposed to the basecoat reinforcement layer, which would be too thin).
The wall should be primed prior to starting any works; the type of primer you use depends on the substrate, but for new blockwork, we recommend using the Water Based Primer. Once this has dried, apply the Levelling Mortar onto the blockwork using a trowel or spray machine, smoothing it out as you go. You can apply the mortar up to a thickness of 50mm, depending upon your requirements. Once it has set, you can continue by applying the reinforcement layer (premium basecoat) and render.
Using the Levelling Mortar to Repair a Substrate
When re-rendering a property, frequently the old render has to be hacked off before the new render can be applied. This is most common when houses have been rendered with a sand and cement or pebbledash finish, as the material is most likely to result in cracks and fall to disrepair.
The difficulty with hacking off an old sand and cement render is that it’s very hard to ensure that the wall underneath remains completely intact. Even if there is no damage, the surface itself is likely to be very uneven and have cracks within it. This is where the Levelling Mortar is extremely handy.
You can use the mortar for filling any cavities in the wall, and for creating a parge coat in order to level off the wall before rendering. The finished result should be a completely smooth surface and a rendered facade without imperfections!
Building up Render Thickness with the Levelling Mortar
Sometimes, people look to render parts of their property (an extension, for example) with the intention of matching the rest of the house. Especially if it’s a second storey, it can be particularly difficult to match up the thickness of the two renders in order to create a smooth, seamless finish between the two areas.
If this is the case and you are looking to install a rendered finish to a certain level of thickness, then the Levelling Mortar is perfect for creating a parge coat to build up the thickness of the system before applying the reinforcement layer and render finish of choice.